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Sooraj BS, Roy J, Mukherjee M, Jose A, Pradeep T. Extensive Polymerization of Atomically Precise Alloy Metal Clusters During Solid-State Reactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:15244-15251. [PMID: 38918935 DOI: 10.1021/acs.langmuir.4c01737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
Exploring the reactions between atomically precise metal clusters and the consequences of such reactions has been an exciting field of research during the past decade. Initial studies in the area were on reactions between clusters in the solution phase, which proceed through the formation of dimers of reacting clusters. In the present work, we examine the interaction between two atomically precise clusters, [Au25(PET)18]- and [Ag25(DMBT)18]-, in the solid state, where PET and DMBT are 2-phenylethanethiol and 2,4-dimethylbenzenethiol, respectively. The experiments were performed using different ratios of these two clusters, and it was inferred that the kinetics of the reactions were faster compared with reactions in the solution. The metal exchange between these two clusters, due to their interactions in the solid state, leads to the formation of dimers, trimers, tetramers, and polymers of atomically precise alloy metal clusters. We observed polymer entities up to hexamers, which were observed for the first time. Control experiments revealed that metal exchange is a key factor leading to polymerization. Our work points to a new approach for synthesizing polymers of atomically precise alloy metal clusters.
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Affiliation(s)
- B S Sooraj
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600036, India
| | - Jayoti Roy
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600036, India
| | - Manish Mukherjee
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600036, India
- Department of Chemistry, Indian Institute of Science Education and Research Kolkata, Kolkata 741246, India
| | - Anagha Jose
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600036, India
| | - Thalappil Pradeep
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600036, India
- International Centre for Clean Water, Chennai 600113, India
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2
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Hu Y, Zhang Q, Zhou J, Guo S, Xu J, Zheng H, Yang Y. Supramolecularly Dimeric Assemble of Planar Cu 13 Clusters Controlled by the Length of Spacers of Diphosphine. Inorg Chem 2023; 62:21091-21100. [PMID: 38079613 DOI: 10.1021/acs.inorgchem.3c02992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2023]
Abstract
The controlled formation of dimeric clusters is challenging. Three copper(I) clusters, labeled as {Cu13[o-Ph(C≡C)2]6(L)4}(ClO4), were synthesized by using three different ligands, including 1,4-bis(diphenylphosphino)butane (dppb), 1,5-bis(diphenylphosphino)pentane (dpppe), and bis(diphenylphosphino)hexane (dpph). By increasing the flexibility of alkyl spacers in the diphosphine ligands, the relative positions of the phenyl rings could be optimized to achieve efficient packing with maximized intercluster interactions. In the crystal structures, cluster 1 with dppb ligands did not display interlocked structures. In contrast, cluster 2 with dpppe ligands formed supramolecularly interlocked polymers through weak π-π interactions and C-H···π interactions, while cluster 3 employing dpph ligands formed supramolecularly interlocked dimers with strong π-π interactions and C-H···π interactions. The supramolecular dimer of 3 was also evidenced by analyses through electrospray ionization mass spectrometry and transmission electron microscopy. Density functional theory calculation was used to understand the electronic structure and transitions. Supramolecularly interlocked polymers/dimers with rigid structures exhibited higher quantum efficiency. The solution of these clusters demonstrated remarkable aggregation-induced emission enhancements. This study presents unique examples of planar luminescent copper clusters, featuring the first serial dialkynyl-protected cluster. It underlines the importance of ligand flexibility in creating supramolecular cluster dimers.
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Affiliation(s)
- Yun Hu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Qian Zhang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Jie Zhou
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Shan Guo
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Jia Xu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Hao Zheng
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Yang Yang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
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3
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Obstarczyk P, Pniakowska A, Nonappa, Grzelczak MP, Olesiak-Bańska J. Crown Ether-Capped Gold Nanoclusters as a Multimodal Platform for Bioimaging. ACS OMEGA 2023; 8:11503-11511. [PMID: 37008092 PMCID: PMC10061685 DOI: 10.1021/acsomega.3c00426] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 03/02/2023] [Indexed: 12/01/2023]
Abstract
The distinct polarity of biomolecule surfaces plays a pivotal role in their biochemistry and functions as it is involved in numerous processes, such as folding, aggregation, or denaturation. Therefore, there is a need to image both hydrophilic and hydrophobic bio-interfaces with markers of distinct responses to hydrophobic and hydrophilic environments. In this work, we present a synthesis, characterization, and application of ultrasmall gold nanoclusters capped with a 12-crown-4 ligand. The nanoclusters present an amphiphilic character and can be successfully transferred between aqueous and organic solvents and have their physicochemical integrity retained. They can serve as probes for multimodal bioimaging with light (as they emit near-infrared luminescence) and electron microscopy (due to the high electron density of gold). In this work, we used protein superstructures, namely, amyloid spherulites, as a hydrophobic surface model and individual amyloid fibrils with a mixed hydrophobicity profile. Our nanoclusters spontaneously stained densely packed amyloid spherulites as observed under fluorescence microscopy, which is limited for hydrophilic markers. Moreover, our clusters revealed structural features of individual amyloid fibrils at a nanoscale as observed under a transmission electron microscope. We show the potential of crown ether-capped gold nanoclusters in multimodal structural characterization of bio-interfaces where the amphiphilic character of the supramolecular ligand is required.
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Affiliation(s)
- Patryk Obstarczyk
- Institute
of Advanced Materials, Wroclaw University
of Science and Technology, 50-370 Wrocław, Poland
| | - Anna Pniakowska
- Institute
of Advanced Materials, Wroclaw University
of Science and Technology, 50-370 Wrocław, Poland
| | - Nonappa
- Faculty
of Engineering and Natural Sciences, Tampere
University, FI-33720 Tampere, Finland
| | - Marcin P. Grzelczak
- Institute
of Advanced Materials, Wroclaw University
of Science and Technology, 50-370 Wrocław, Poland
| | - Joanna Olesiak-Bańska
- Institute
of Advanced Materials, Wroclaw University
of Science and Technology, 50-370 Wrocław, Poland
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4
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Chakraborty A, Stanley MM, Mondal B, Bodiuzzaman M, Chakraborty P, Kannan MP, Pradeep T. Tunable reactivity of silver nanoclusters: a facile route to synthesize a range of bimetallic nanostructures. NANOSCALE 2023; 15:2690-2699. [PMID: 36651628 DOI: 10.1039/d2nr06350f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Quantized energy levels and unique optoelectronic properties of atomically precise noble metal nanoclusters (NCs) have made them important in materials science, catalysis, sensors, and biomedicine. Recent studies on the profound chemical interactions of such NCs within themselves and with ultrasmall plasmonic nanoparticles (NPs) indicate that depending on the size, shape, and composition of the second reactant, NCs can either take part in colloidal assembly without any chemical modifications or lead to products with atoms exchanged. Anisotropic NPs are a unique class of plasmonic nanomaterials as their sharp edges and protrusions show higher chemical reactivity compared to flat surfaces, often leading to site-specific growth of foreign metals and metal oxide shells. Here, using chemical interactions between gold nanotriangles (AuNTs) and Ag NCs of different compositions, we show for the first time that metal atom etching, alloying/atom exchange, and colloidal assembly can all happen at a particular length scale. Specifically, Ag25(DMBT)18 NCs (denoted as 1), upon reacting with AuNTs of ∼57 nm edge length, etch gold atoms from their sharp tips and edges. Simultaneously, the two nanosystems exchange metal atoms, resulting in Ag-doped AuNTs and AuxAg24-x(DMBT)18 (x = 1, 2). However, another Ag NC with the same metallic core, but a different ligand shell, namely, Ag25H22(DPPE)8 (denoted as 2), creates dendritic shells made of Ag, surrounding these AuNTs under the same reaction conditions. Furthermore, we show that in the case of a more reactive thiol-protected Ag NC, namely, Ag44(pMBA)30 (denoted as 3), gold etching is faster from the edges and tips, which drastically alters the identities of both the reactants. Interestingly, when the AuNTs are protected by pMBA, 3 systematically assembles on AuNTs through H-bonding, resulting in an AuNT core-Ag NC shell nanocomposite. Thus, while shedding light on various factors affecting the reactivity of Ag NCs towards AuNTs, the present study proposes a single strategy to obtain a number of bimetallic nanosystems of targeted morphology and functionality.
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Affiliation(s)
- Amrita Chakraborty
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Megha Maria Stanley
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Biswajit Mondal
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Mohammad Bodiuzzaman
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Papri Chakraborty
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
| | - M P Kannan
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Thalappil Pradeep
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
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5
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Swierczewski M, Cousin F, Banach E, Rosspeintner A, Lawson Daku LM, Ziarati A, Kazan R, Jeschke G, Azoulay R, Lee LT, Bürgi T. Exceptionally Stable Dimers and Trimers of Au 25 Clusters Linked with a Bidentate Dithiol: Synthesis, Structure and Chirality Study. Angew Chem Int Ed Engl 2023; 62:e202215746. [PMID: 36728623 DOI: 10.1002/anie.202215746] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 02/01/2023] [Accepted: 02/02/2023] [Indexed: 02/03/2023]
Abstract
A bidentate chiral dithiol (diBINAS) is utilised to bridge Au25 nanoclusters to form oligomers. Separation by size allows the isolation of fractions that are stable thanks to the bidentate nature of the linker. The structure of the products is elucidated by small-angle X-ray scattering and calculated using density functional theory. Additional structural details are studied by diffusion-ordered nuclear magnetic resonance spectroscopy, transmission electron microscopy and matrix-assisted laser desorption/ionization time of flight mass spectrometry. Significant changes in the optical properties are analysed by UV/Vis and fluorescence spectroscopies, with the latter demonstrating a strong emission enhancement. Furthermore, the emergent chiral characteristics are studied by circular dichroism. Due to the geometry constraints of the nanocluster assemblies, diBINAS can be regarded as a templating molecule, taking a step towards the directed self-assembly of metal clusters.
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Affiliation(s)
- Michal Swierczewski
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211, Geneva 4, Switzerland
| | - Fabrice Cousin
- Laboratoire Léon Brillouin, Université Paris-Saclay, CEA-Saclay, 91191, Gif-sur-Yvette Cedex, France
| | - Ewa Banach
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211, Geneva 4, Switzerland
| | - Arnulf Rosspeintner
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211, Geneva 4, Switzerland
| | - Latevi Max Lawson Daku
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211, Geneva 4, Switzerland
| | - Abolfazl Ziarati
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211, Geneva 4, Switzerland
| | - Rania Kazan
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211, Geneva 4, Switzerland
| | - Gunnar Jeschke
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, 8093, Zürich, Switzerland
| | - Raymond Azoulay
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211, Geneva 4, Switzerland
| | - Lay-Theng Lee
- Laboratoire Léon Brillouin, Université Paris-Saclay, CEA-Saclay, 91191, Gif-sur-Yvette Cedex, France
| | - Thomas Bürgi
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211, Geneva 4, Switzerland
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6
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Supercrystal engineering of atomically precise gold nanoparticles promoted by surface dynamics. Nat Chem 2023; 15:230-239. [PMID: 36357788 DOI: 10.1038/s41557-022-01079-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 09/27/2022] [Indexed: 11/12/2022]
Abstract
The controllable packing of functional nanoparticles (NPs) into crystalline lattices is of interest in the development of NP-based materials. Here we demonstrate that the size, morphology and symmetry of such supercrystals can be tailored by adjusting the surface dynamics of their constituent NPs. In the presence of excess tetraethylammonium cations, atomically precise [Au25(SR)18]- NPs (where SR is a thiolate ligand) can be crystallized into micrometre-sized hexagonal rod-like supercrystals, rather than as face-centred-cubic superlattices otherwise. Experimental characterization supported by theoretical modelling shows that the rod-like crystals consist of polymeric chains in which Au25 NPs are held together by a linear SR-[Au(I)-SR]4 interparticle linker. This linker is formed by conjugation of two dynamically detached SR-[Au(I)-SR]2 protecting motifs from adjacent Au25 particles, and is stabilized by a combination of CH⋯π and ion-pairing interactions between tetraethylammonium cations and SR ligands. The symmetry, morphology and size of the resulting supercrystals can be systematically tuned by changing the concentration and type of the tetraalkylammonium cations.
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7
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Pyo K, Matus MF, Malola S, Hulkko E, Alaranta J, Lahtinen T, Häkkinen H, Pettersson M. Tailoring the interaction between a gold nanocluster and a fluorescent dye by cluster size: creating a toolbox of range-adjustable pH sensors. NANOSCALE ADVANCES 2022; 4:4579-4588. [PMID: 36425249 PMCID: PMC9606730 DOI: 10.1039/d2na00487a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
We present a novel strategy for tailoring the fluorescent azadioxatriangulenium (KU) dye-based pH sensor to the target pH range by regulating the pK a value of the gold nanoclusters. Based on the correlation between the pK a and surface curvature of ligand-protected nanoparticles, the pK a value of the gold nanoclusters was controlled by size. In particular, three different-sized para-mercaptobenzoic acid (p-MBA) protected gold nanoclusters, Au25(p-MBA)18, Au102(p-MBA)44, and Au210-230(p-MBA)70-80 were used as the regulator for the pH range of the KU response. The negatively charged gold nanoclusters enabled the positively charged KU to bind to the surface, forming a complex and quenching the fluorescence of the KU by the energy transfer process. The fluorescence was restored after adjusting the surface charge of the gold nanocluster by controlling the solution pH. In addition, the KU exhibited a significantly different pH response behaviour for each gold nanocluster. Au210-230(p-MBA)70-80 showed a higher pH response range than Au102(p-MBA)44, which was intuitive. However, Au25(p-MBA)18 showed an unexpectedly high pH response behaviour. pK a titration measurement, molecular dynamics simulations, and essential dynamics analysis showed that small nanoclusters do not follow the scaling between the curvature and the pK a value. Instead, the behaviour is governed by the distribution and interaction of p-MBA ligands on the nanocluster surface. This work presents an effective design strategy for fabricating a range adjustable pH sensor by understanding the protonation behaviour of the ultrasmall gold nanoclusters in an atomic range.
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Affiliation(s)
- Kyunglim Pyo
- Department of Chemistry, Nanoscience Centre, University of Jyväskylä P. O. Box 35 FI-40014 Finland
| | - María Francisca Matus
- Department of Physics, Nanoscience Centre, University of Jyväskylä P. O. Box 35 FI-40014 Finland
| | - Sami Malola
- Department of Physics, Nanoscience Centre, University of Jyväskylä P. O. Box 35 FI-40014 Finland
| | - Eero Hulkko
- Department of Chemistry, Nanoscience Centre, University of Jyväskylä P. O. Box 35 FI-40014 Finland
| | - Johanna Alaranta
- Department of Chemistry, Nanoscience Centre, University of Jyväskylä P. O. Box 35 FI-40014 Finland
| | - Tanja Lahtinen
- Department of Chemistry, Nanoscience Centre, University of Jyväskylä P. O. Box 35 FI-40014 Finland
| | - Hannu Häkkinen
- Department of Chemistry, Nanoscience Centre, University of Jyväskylä P. O. Box 35 FI-40014 Finland
- Department of Physics, Nanoscience Centre, University of Jyväskylä P. O. Box 35 FI-40014 Finland
| | - Mika Pettersson
- Department of Chemistry, Nanoscience Centre, University of Jyväskylä P. O. Box 35 FI-40014 Finland
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8
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Nag A, Pradeep T. Assembling Atomically Precise Noble Metal Nanoclusters Using Supramolecular Interactions. ACS NANOSCIENCE AU 2022; 2:160-178. [PMID: 37101822 PMCID: PMC10114813 DOI: 10.1021/acsnanoscienceau.1c00046] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Supramolecular chemistry (SC) of noble metal nanoclusters (NMNCs) is one of the fascinating areas of contemporary materials science. It is principally concerned with the noncovalent interactions between NMNCs, as well as between NMNCs and molecules or nanoparticles. This review focuses on recent advances in the supramolecular assembly of NMNCs and applications of the resulting structures. We have divided the topics into four distinct subgroups: (i) SC of NMNCs in gaseous and solution phases, (ii) supramolecular interactions of NMNCs in crystal lattices, (iii) supramolecular assemblies of NMNCs with nanoparticles and NMNCs, and (iv) SC of NMNCs with other molecules. The last explores their interactions with fullerenes, cyclodextrins, cucurbiturils, crown ethers, and more. After discussing these topics concisely, various emerging properties of the assembled systems in terms of their mechanical, optical, magnetic, charge-transfer, etc. properties and applications are presented. SC is seen to provide a crucial role to induce new physical and chemical properties in such hybrid nanomaterials. Finally, we highlight the scope for expansion and future research in the area. This review would be useful to those working on functional nanostructures in general and NMNCs in particular.
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9
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Kolay S, Bain D, Maity S, Devi A, Patra A, Antoine R. Self-Assembled Metal Nanoclusters: Driving Forces and Structural Correlation with Optical Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:544. [PMID: 35159891 PMCID: PMC8838213 DOI: 10.3390/nano12030544] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 01/31/2022] [Accepted: 02/02/2022] [Indexed: 02/05/2023]
Abstract
Studies on self-assembly of metal nanoclusters (MNCs) are an emerging field of research owing to their significant optical properties and potential applications in many areas. Fabricating the desired self-assembly structure for specific implementation has always been challenging in nanotechnology. The building blocks organize themselves into a hierarchical structure with a high order of directional control in the self-assembly process. An overview of the recent achievements in the self-assembly chemistry of MNCs is summarized in this review article. Here, we investigate the underlying mechanism for the self-assembly structures, and analysis reveals that van der Waals forces, electrostatic interaction, metallophilic interaction, and amphiphilicity are the crucial parameters. In addition, we discuss the principles of template-mediated interaction and the effect of external stimuli on assembly formation in detail. We also focus on the structural correlation of the assemblies with their photophysical properties. A deep perception of the self-assembly mechanism and the degree of interactions on the excited state dynamics is provided for the future synthesis of customizable MNCs with promising applications.
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Affiliation(s)
- Sarita Kolay
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India; (S.K.); (S.M.)
| | - Dipankar Bain
- Energy and Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India; (D.B.); (A.D.)
| | - Subarna Maity
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India; (S.K.); (S.M.)
| | - Aarti Devi
- Energy and Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India; (D.B.); (A.D.)
| | - Amitava Patra
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India; (S.K.); (S.M.)
- Energy and Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India; (D.B.); (A.D.)
| | - Rodolphe Antoine
- CNRS, Institut Lumière Matière UMR 5306, Univ Lyon, Université Claude Bernard Lyon 1, F-69100 Villeurbanne, France
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10
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Wu YG, Huang JH, Zhang C, Dong XY, Guo XK, Wu W, Zang SQ. Site-specific sulfur-for-metal replacement in silver nanocluster. Chem Commun (Camb) 2022; 58:7321-7324. [DOI: 10.1039/d2cc00794k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new Ag36 nanocluster with a closed electronic structure and eight valence electrons is reported, which has a similar structure to an open-shell Ag34 nanocluster with three valence electrons, except...
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11
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Si WD, Sheng K, Zhang C, Wang Z, Zhang SS, Dou JM, Feng L, Gao ZY, Tung CH, Sun D. Bicarbonate insertion triggered self-assembly of chiral octa-gold nanoclusters into helical superstructures in the crystalline state. Chem Sci 2022; 13:10523-10531. [PMID: 36277632 PMCID: PMC9473528 DOI: 10.1039/d2sc03463h] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 08/12/2022] [Indexed: 11/21/2022] Open
Abstract
Constructing atomically precise helical superstructures of high order is an extensively pursued subject for unique aesthetic features and underlying applications. However, the construction of cluster-based helixes of well-defined architectures comes with a huge challenge owing to their intrinsic complexity in geometric structures and synthetic processes. Herein, we report a pair of unique P- and M-single stranded helical superstructures spontaneously assembled from R- and S-Au8c individual nanoclusters, respectively, upon selecting chiral BINAP (2,2′-bis(diphenylphosphino)-1,1′-binaphthalene) and hydrophilic o-H2MBA (o-mercaptobenzoic acid) as protective ligands to induce chirality and facilitate the formation of helixes. Structural analysis reveals that the chirality of the Au8c individual nanoclusters is derived from the homochiral ligands and the inherently chiral Au8 metallic kernel, which was further corroborated by experimental and computational investigations. More importantly, driven by the O–H⋯O interactions between (HCO3−)2 dimers and achiral o-HMBA− ligands, R/S-Au8c individual nanoclusters can assemble into helical superstructures in a highly ordered crystal packing. Electrospray ionization (ESI) and collision-induced dissociation (CID) mass spectrometry of Au8c confirm the hydrogen-bonded dimer of Au8c individual nanoclusters in solution, illustrating that the insertion of (HCO3−)2 dimers plays a crucial role in the assembly of helical superstructures in the crystalline state. This work not only demonstrates an effective strategy to construct cluster-based helical superstructures at the atomic level, but also provides visual and reliable experimental evidence for understanding the formation mechanism of helical superstructures. A pair of unprecedented helical superstructures via self-assembly of inherently homochiral Au8 nanoclusters, [Au8(R/S-BINAP)3(o-HMBA)2]·2(HCO3), is obtained in the crystalline state, in which the HCO3− ions act as the bridge.![]()
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Affiliation(s)
- Wei-Dan Si
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Kai Sheng
- School of Aeronautics, Shandong Jiaotong University, Ji'nan 250037, People's Republic of China
| | - Chengkai Zhang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Zhi Wang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Shan-Shan Zhang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Jian-Min Dou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, People's Republic of China
| | - Lei Feng
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Zhi-Yong Gao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, Henan, People's Republic of China
| | - Chen-Ho Tung
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Di Sun
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
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12
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Banach E, Bürgi T. Metal Nanoclusters as Versatile Building Blocks for Hierarchical Structures. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ewa Banach
- Department of Physical Chemistry University of Geneva 30 Quai Ernest Ansermet CH-1211 Geneva 4 Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry University of Geneva 30 Quai Ernest Ansermet CH-1211 Geneva 4 Switzerland
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13
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Kim HM, Park JH, Lee SK. Fabrication and measurement of fiber optic localized surface plasmon resonance sensor based on gold nanoparticle dimer. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 261:120034. [PMID: 34116419 DOI: 10.1016/j.saa.2021.120034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/12/2021] [Accepted: 05/27/2021] [Indexed: 06/12/2023]
Abstract
Fiber optic localized surface plasmon resonance (FO LSPR) sensors capable of portable, real-time, and remote sensing are emerging with the progress of lab-on-fiber technology. However, the small area of the substrate by the optical fiber often restricts the sensitivity of the FO LSPR sensors. To improve the performance of the FO LSPR sensors, it is necessary to enhance the interactions between incident light and plasmonic nanostructures within a defined region. Dimer in which two nanoparticles are arranged with nanometer spacing can effectively increase the light-nanostructure interactions. It is well known that the nanogap made in the assembled nanoparticles significantly enhances the intensity of the electromagnetic field in the confined area by the hot spot effect. We fabricate the dimers of gold nanoparticles on the optical fiber with benzenethiol using a method that reduces the repulsive force between the nanoparticles. In the dimers, the strong plasmonic interaction between the two nanoparticles produces a longitudinal plasmon coupling band, which is compared to the transverse plasmon band by the monomer-based FO LSPR sensor with a similar density of gold nanoparticles. In the proposed sensor, the longitudinal band displays approximately 9.1 times improved sensitivity. When two types of sensors are applied to the biosensor application, the dimer-based FO LSPR sensor also proves an improved limit of detection of about 2.6 times. This method is expected to become a milestone in the field of measurement for small molecules and low concentration through the advancement of the yield and density of dimers.
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Affiliation(s)
- Hyeong-Min Kim
- Department of Electronics and Electrical Engineering, Dankook University, Yongin 16890, South Korea
| | - Jae-Hyoung Park
- Department of Electronics and Electrical Engineering, Dankook University, Yongin 16890, South Korea.
| | - Seung-Ki Lee
- Department of Electronics and Electrical Engineering, Dankook University, Yongin 16890, South Korea.
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14
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Rival JV, Mymoona P, Lakshmi KM, Pradeep T, Shibu ES. Self-Assembly of Precision Noble Metal Nanoclusters: Hierarchical Structural Complexity, Colloidal Superstructures, and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005718. [PMID: 33491918 DOI: 10.1002/smll.202005718] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/07/2020] [Indexed: 06/12/2023]
Abstract
Ligand protected noble metal nanoparticles are excellent building blocks for colloidal self-assembly. Metal nanoparticle self-assembly offers routes for a wide range of multifunctional nanomaterials with enhanced optoelectronic properties. The emergence of atomically precise monolayer thiol-protected noble metal nanoclusters has overcome numerous challenges such as uncontrolled aggregation, polydispersity, and directionalities faced in plasmonic nanoparticle self-assemblies. Because of their well-defined molecular compositions, enhanced stability, and diverse surface functionalities, nanoclusters offer an excellent platform for developing colloidal superstructures via the self-assembly driven by surface ligands and metal cores. More importantly, recent reports have also revealed the hierarchical structural complexity of several nanoclusters. In this review, the formulation and periodic self-assembly of different noble metal nanoclusters are focused upon. Further, self-assembly induced amplification of physicochemical properties, and their potential applications in molecular recognition, sensing, gas storage, device fabrication, bioimaging, therapeutics, and catalysis are discussed. The topics covered in this review are extensively associated with state-of-the-art achievements in the field of precision noble metal nanoclusters.
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Affiliation(s)
- Jose V Rival
- Smart Materials Lab, Electrochemical Power Sources (ECPS) Division, Council of Scientific and Industrial Research (CSIR)-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR)-CSIR, Ghaziabad, Uttar Pradesh, 201002, India
| | - Paloli Mymoona
- Smart Materials Lab, Electrochemical Power Sources (ECPS) Division, Council of Scientific and Industrial Research (CSIR)-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR)-CSIR, Ghaziabad, Uttar Pradesh, 201002, India
| | - Kavalloor Murali Lakshmi
- Smart Materials Lab, Electrochemical Power Sources (ECPS) Division, Council of Scientific and Industrial Research (CSIR)-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR)-CSIR, Ghaziabad, Uttar Pradesh, 201002, India
| | - Thalappil Pradeep
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology (IIT) Madras, Chennai, Tamil Nadu, 600036, India
| | - Edakkattuparambil Sidharth Shibu
- Smart Materials Lab, Electrochemical Power Sources (ECPS) Division, Council of Scientific and Industrial Research (CSIR)-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR)-CSIR, Ghaziabad, Uttar Pradesh, 201002, India
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15
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Sonia, Komal, Kukreti S, Kaushik M. Gold nanoclusters: An ultrasmall platform for multifaceted applications. Talanta 2021; 234:122623. [PMID: 34364432 DOI: 10.1016/j.talanta.2021.122623] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/12/2021] [Accepted: 06/14/2021] [Indexed: 01/22/2023]
Abstract
Gold nanoclusters (Au NCs) with a core size below 2 nm form an exciting class of functional nano-materials with characteristic physical and chemical properties. The properties of Au NCs are more prominent and extremely different from their bulk counterparts. The synthesis of Au NCs is generally assisted by template or ligand, which impart excellent cluster stability and high quantum yield. The tunable and sensitive physicochemical properties of Au NCs open horizons for their advanced applications in various interdisciplinary fields. In this review, we briefly summarize the solution phase synthesis and origin of the characteristic properties of Au NCs. A vast review of recent research work introducing biosensors based on Au NCs has been presented along with their specifications and detection limits. This review also highlights recent progress in the use of Au NCs as bio-imaging probe, enzyme mimic, temperature sensing probe and catalysts. A speculation on present challenges and certain future prospects have also been provided to enlighten the path for advancement of multifaceted applications of Au NCs.
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Affiliation(s)
- Sonia
- Nano-bioconjugate Chemistry Lab, Cluster Innovation Centre, University of Delhi, Delhi, India; Nucleic Acids Research Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Komal
- Nano-bioconjugate Chemistry Lab, Cluster Innovation Centre, University of Delhi, Delhi, India; Nucleic Acids Research Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Shrikant Kukreti
- Nucleic Acids Research Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Mahima Kaushik
- Nano-bioconjugate Chemistry Lab, Cluster Innovation Centre, University of Delhi, Delhi, India.
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16
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Das AK, Maity S, Sengupta T, Bista D, Reber AC, Patra A, Khanna SN, Mandal S. One-Dimensional Silver-Thiolate Cluster-Assembly: Effect of Argentophilic Interactions on Excited-State Dynamics. J Phys Chem Lett 2021; 12:2154-2159. [PMID: 33626284 DOI: 10.1021/acs.jpclett.0c03728] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We report the synthesis, crystal structure, and electronic structure calculations of a one-dimensional silver-thiolate cluster-assembled and its ultrafast spectroscopic investigation. Experiments and theory find the material to have a significant gap as the HOMO-LUMO absorption corresponds to 2.69 eV, and the defect-free structure is calculated to have a gap of 2.82 eV. Cluster models demonstrate that the gap energy is length-dependent. Theoretical studies identify a nonbonding metallophilic interaction that exists between two Ag atoms in adjacent strings that helps to stabilize the chain structure. Transient absorption spectroscopy reveals that the electron dynamics is a mixture of the behavior of cluster and nanoparticle, with the material having a 346 fs ground-state relaxation like a cluster, and the electron dynamics is dominated by electron-phonon coupling with a decay time of 1.5 ps, unlike the isolated cluster whose decay is mostly radiative.
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Affiliation(s)
- Anish Kumar Das
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695551, India
| | - Subarna Maity
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, WB 700032, India
| | - Turbasu Sengupta
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23220, United States
| | - Dinesh Bista
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23220, United States
| | - Arthur C Reber
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23220, United States
| | - Amitava Patra
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, WB 700032, India
| | - Shiv N Khanna
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23220, United States
| | - Sukhendu Mandal
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695551, India
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17
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Wu QS, Bigdeli F, Rouhani F, Gao XM, Kaviani H, Li HJ, Wang W, Liu KG, Hu ML, Cai XQ, Morsali A. New 3D Porous Silver Nanopolycluster as a Highly Effective Supercapacitor Electrode: Synthesis and Study of the Optical and Electrochemical Properties. Inorg Chem 2021; 60:1523-1532. [PMID: 33471996 DOI: 10.1021/acs.inorgchem.0c02875] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A high-nucleus silver nanopolycluster as a new type of silver-based polymer supercapacitor (SSc) by a simple and single-step synthesis process was designed and synthesized. The structural, optical, and electrochemical properties of SSc-2 were determined. This highly stable conductive 3D nanopolycluster shows great cycling stability, large capacity, and high energy density without any modification or doping process and so acts as an excellent SSc (412 F g-1 at 1.5 A g-1). In addition, there was a stable cycling performance (94% capacitance) following 7000 cycles at 3 A g-1 current density. The presence of fluorinated groups, 3D expansion of high-nucleus metallic clusters, and porosity are the advantages of SSc-2 that lead to stability, conductivity, and high capacity, respectively. These results lead to the development of a novel kind of SSc by overcoming the low conductivity and limited capacity challenges without any modification.
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Affiliation(s)
- Qing-Shi Wu
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou 362000, Fujian Province, China
| | - Fahime Bigdeli
- Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, Tehran 14115-175, Iran
| | - Farzaneh Rouhani
- Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, Tehran 14115-175, Iran
| | - Xue-Mei Gao
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, and Ningxia Key Laboratory for Photovoltaic Materials, Ningxia University, Yin-Chuan 750021, Ningxia, China
| | - Hamed Kaviani
- Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, Tehran 14115-175, Iran
| | - Hong-Jing Li
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, and Ningxia Key Laboratory for Photovoltaic Materials, Ningxia University, Yin-Chuan 750021, Ningxia, China
| | - Wei Wang
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, and Ningxia Key Laboratory for Photovoltaic Materials, Ningxia University, Yin-Chuan 750021, Ningxia, China
| | - Kuan-Guan Liu
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, and Ningxia Key Laboratory for Photovoltaic Materials, Ningxia University, Yin-Chuan 750021, Ningxia, China
| | - Mao-Lin Hu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xiao-Qing Cai
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Ali Morsali
- Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, Tehran 14115-175, Iran
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18
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Bonacchi S, Antonello S, Dainese T, Maran F. Atomically Precise Metal Nanoclusters: Novel Building Blocks for Hierarchical Structures. Chemistry 2021; 27:30-38. [PMID: 32794586 DOI: 10.1002/chem.202003155] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/03/2020] [Indexed: 11/08/2022]
Abstract
Atomically precise ligand-protected nanoclusters (NCs) constitute an important class of compounds that exhibit well-defined structures and, when sufficiently small, evident molecular properties. NCs provide versatile building blocks to fabricate hierarchical superstructures. The assembly of NCs indeed offers opportunities to devise new materials with given structures and able to carry out specific functions. In this Concept article, we highlight the possibilities offered by NCs in which the physicochemical properties are controlled by the introduction of foreign metal atoms and/or modification of the composition of the capping monolayer with functional ligands. Different approaches to assemble NCs into dimers and higher hierarchy structures and the corresponding changes in physicochemical properties are also described.
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Affiliation(s)
- Sara Bonacchi
- Department of Chemistry, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Sabrina Antonello
- Department of Chemistry, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Tiziano Dainese
- Department of Chemistry, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Flavio Maran
- Department of Chemistry, University of Padova, Via Marzolo 1, 35131, Padova, Italy.,Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, 06269, Connecticut, USA
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19
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Mammen N, Malola S, Honkala K, Häkkinen H. Dynamics of weak interactions in the ligand layer of meta-mercaptobenzoic acid protected gold nanoclusters Au 68( m-MBA) 32 and Au 144( m-MBA) 40. NANOSCALE 2020; 12:23859-23868. [PMID: 33237092 DOI: 10.1039/d0nr07366k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Atomically precise metal nanoclusters, stabilized and functionalized by organic ligands, are emerging nanomaterials with potential applications in plasmonics, nano-electronics, bio-imaging, nanocatalysis, and as therapeutic agents or drug carriers in nanomedicine. The ligand layer has an important role in modifying the physico-chemical properties of the clusters and in defining the interactions between the clusters and the environment. While this role is well recognized from a great deal of experimental studies, there is very little theoretical information on dynamical processes within the layer itself. Here, we have performed extensive molecular dynamics simulations, with forces calculated from the density functional theory, to investigate thermal stability and dynamics of the ligand layer of the meta-mercaptobenzoic acid (m-MBA) protected Au68 and Au144 nanoclusters, which are the first two gold nanoclusters structurally solved to atomic precision by electron microscopy [Azubel et al., Science, 2014, 345, 909 and ACS Nano, 2017, 11, 11866]. We visualize and analyze dynamics of three distinct non-covalent interactions, viz., ligand-ligand hydrogen bonding, metal-ligand O[double bond, length as m-dash]C-OHAu interaction, and metal-ligand Ph(π)Au interaction. We discuss their relevance for defining, at the same time, the dynamic stability and reactivity of the cluster. These interactions promote the possibility of ligand addition reactions for bio-functionalization or allow the protected cluster to act as a catalyst where active sites are dynamically accessible inside the ligand layer.
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Affiliation(s)
- Nisha Mammen
- Department of Physics, Nanoscience Center, University of Jyväskylä, Jyväskylä-40014, Finland
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20
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Yao Q, Wu Z, Liu Z, Lin Y, Yuan X, Xie J. Molecular reactivity of thiolate-protected noble metal nanoclusters: synthesis, self-assembly, and applications. Chem Sci 2020; 12:99-127. [PMID: 34163584 PMCID: PMC8178751 DOI: 10.1039/d0sc04620e] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 11/07/2020] [Indexed: 12/14/2022] Open
Abstract
Thiolate-protected noble metal (e.g., Au and Ag) nanoclusters (NCs) are ultra-small particles with a core size of less than 3 nm. Due to the strong quantum confinement effects and diverse atomic packing modes in this ultra-small size regime, noble metal NCs exhibit numerous molecule-like optical, magnetic, and electronic properties, making them an emerging family of "metallic molecules". Based on such molecule-like structures and properties, an individual noble metal NC behaves as a molecular entity in many chemical reactions, and exhibits structurally sensitive molecular reactivity to various ions, molecules, and other metal NCs. Although this molecular reactivity determines the application of NCs in various fields such as sensors, biomedicine, and catalysis, there is still a lack of systematic summary of the molecular interaction/reaction fundamentals of noble metal NCs at the molecular and atomic levels in the current literature. Here, we discuss the latest progress in understanding and exploiting the molecular interactions/reactions of noble metal NCs in their synthesis, self-assembly and application scenarios, based on the typical M(0)@M(i)-SR core-shell structure scheme, where M and SR are the metal atom and thiolate ligand, respectively. In particular, the continuous development of synthesis and characterization techniques has enabled noble metal NCs to be produced with molecular purity and atomically precise structural resolution. Such molecular purity and atomically precise structure, coupled with the great help of theoretical calculations, have revealed the active sites in various structural hierarchies of noble metal NCs (e.g., M(0) core, M-S interface, and SR ligand) for their molecular interactions/reactions. The anatomy of such molecular interactions/reactions of noble metal NCs in synthesis, self-assembly, and applications (e.g., sensors, biomedicine, and catalysis) constitutes another center of our discussion. The basis and practicality of the molecular interactions/reactions of noble metal NCs exemplified in this Review may increase the acceptance of metal NCs in various fields.
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Affiliation(s)
- Qiaofeng Yao
- Department of Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4 Singapore 117585
| | - Zhennan Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4 Singapore 117585
| | - Zhihe Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4 Singapore 117585
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City Fuzhou China 350207
| | - Yingzheng Lin
- Department of Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4 Singapore 117585
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City Fuzhou China 350207
| | - Xun Yuan
- College of Materials Science and Engineering, Qingdao University of Science and Technology Qingdao China 266042
| | - Jianping Xie
- Department of Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4 Singapore 117585
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City Fuzhou China 350207
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21
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Zheng K, Setyawati MI, Leong DT, Xie J. Overcoming bacterial physical defenses with molecule-like ultrasmall antimicrobial gold nanoclusters. Bioact Mater 2020; 6:941-950. [PMID: 33102937 PMCID: PMC7560576 DOI: 10.1016/j.bioactmat.2020.09.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/24/2020] [Accepted: 09/27/2020] [Indexed: 12/12/2022] Open
Abstract
The size of metal nanoparticles (NPs) is crucial in their biomedical applications. Although abundant studies on the size effects of metal NPs in the range of 2-100 nm have been conducted, the exploration of the ultrasmall metal nanoclusters (NCs) of ~1 nm in size with unique features is quite limited. We synthesize three different sized gold (Au) NCs of different Au atom numbers and two bigger sized Au NPs protected by the same ligand to study the size influence on antimicrobial efficacy. The ultrasmall Au NCs can easily traverse the cell wall pores to be internalized inside bacteria, inducing reactive oxygen species generation to oxidize bacterial membrane and disturb bacterial metabolism. This explains why the Au NCs are antimicrobial while the Au NPs are non-antimicrobial, suggesting the key role of size in antimicrobial ability. Moreover, in contrast to the widely known size-dependent antimicrobial properties, the Au NCs of different atom numbers demonstrate molecule-like instead of size-dependent antimicrobial behavior with comparable effectiveness, indicating the unique molecule-like feature of ultrasmall Au NCs. Overcoming the bacterial defenses at the wall with ultrasmall Au NCs changes what was previously believed to harmless to the bacteria instead to a highly potent agent against the bacteria.
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Affiliation(s)
- Kaiyuan Zheng
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Magdiel I Setyawati
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - David Tai Leong
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Jianping Xie
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
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22
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Yuan P, Zhang R, Selenius E, Ruan P, Yao Y, Zhou Y, Malola S, Häkkinen H, Teo BK, Cao Y, Zheng N. Solvent-mediated assembly of atom-precise gold-silver nanoclusters to semiconducting one-dimensional materials. Nat Commun 2020; 11:2229. [PMID: 32376829 PMCID: PMC7203111 DOI: 10.1038/s41467-020-16062-6] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 04/09/2020] [Indexed: 01/10/2023] Open
Abstract
Bottom-up design of functional device components based on nanometer-sized building blocks relies on accurate control of their self-assembly behavior. Atom-precise metal nanoclusters are well-characterizable building blocks for designing tunable nanomaterials, but it has been challenging to achieve directed assembly to macroscopic functional cluster-based materials with highly anisotropic properties. Here, we discover a solvent-mediated assembly of 34-atom intermetallic gold-silver clusters protected by 20 1-ethynyladamantanes into 1D polymers with Ag-Au-Ag bonds between neighboring clusters as shown directly by the atomic structure from single-crystal X-ray diffraction analysis. Density functional theory calculations predict that the single crystals of cluster polymers have a band gap of about 1.3 eV. Field-effect transistors fabricated with single crystals of cluster polymers feature highly anisotropic p-type semiconductor properties with ≈1800-fold conductivity in the direction of the polymer as compared to cross directions, hole mobility of ≈0.02 cm2 V-1 s-1, and an ON/OFF ratio up to ≈4000. This performance holds promise for further design of functional cluster-based materials with highly anisotropic semiconducting properties.
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Affiliation(s)
- Peng Yuan
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Ruihua Zhang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Elli Selenius
- Departments of Physics and Chemistry, Nanoscience Center, University of Jyväskylä, FI-40014, Jyväskylä, Finland
| | - Pengpeng Ruan
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Yangrong Yao
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Yang Zhou
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Sami Malola
- Departments of Physics and Chemistry, Nanoscience Center, University of Jyväskylä, FI-40014, Jyväskylä, Finland
| | - Hannu Häkkinen
- Departments of Physics and Chemistry, Nanoscience Center, University of Jyväskylä, FI-40014, Jyväskylä, Finland.
| | - Boon K Teo
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Yang Cao
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China.
| | - Nanfeng Zheng
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China.
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23
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Negishi Y, Hashimoto S, Ebina A, Hamada K, Hossain S, Kawawaki T. Atomic-level separation of thiolate-protected metal clusters. NANOSCALE 2020; 12:8017-8039. [PMID: 32207494 DOI: 10.1039/d0nr00824a] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Fine metal clusters have attracted much attention from the viewpoints of both basic and applied science for many years because of their unique physical/chemical properties and functions, which differ from those of bulk metals. Among these materials, thiolate (SR)-protected gold clusters (Aun(SR)m clusters) have been the most studied metal clusters since 2000 because of their ease of synthesis and handling. However, in the early 2000s, it was not easy to isolate these metal clusters. Therefore, high-resolution separation methods were explored, and several atomic-level separation methods, including polyacrylamide gel electrophoresis (PAGE), high-performance liquid chromatography (HPLC), and thin-layer chromatography (TLC), were successively established. These techniques have made it possible to isolate a series of Aun(SR)m clusters, and much knowledge has been obtained on the correlation between the chemical composition and fundamental properties such as the stability, electronic structure, and physical properties of Aun(SR)m clusters. In addition, these high-resolution separation techniques are now also frequently used to evaluate the distribution of the product and to track the reaction process. In this way, high-resolution separation techniques have played an essential role in the study of Aun(SR)m clusters. However, only a few reviews have focused on this work. This review focuses on PAGE, HPLC, and TLC separation techniques, which offer high resolution and repeatability, and summarizes previous studies on the high-resolution separation of Aun(SR)m and related clusters with the purpose of promoting a better understanding of the features and the utility of these techniques.
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Affiliation(s)
- Yuichi Negishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
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24
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Gadjieva NA, Champsaur AM, Steigerwald ML, Roy X, Nuckolls C. Dimensional Control of Assembling Metal Chalcogenide Clusters. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000039] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Natalia A. Gadjieva
- Department of Chemistry Columbia University 3000 Broadway 10027 New York New York USA
| | - Anouck M. Champsaur
- Department of Chemistry Columbia University 3000 Broadway 10027 New York New York USA
| | | | - Xavier Roy
- Department of Chemistry Columbia University 3000 Broadway 10027 New York New York USA
| | - Colin Nuckolls
- Department of Chemistry Columbia University 3000 Broadway 10027 New York New York USA
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25
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Sokołowska K, Luan Z, Hulkko E, Rameshan C, Barrabés N, Apkarian VA, Lahtinen T. Chemically Selective Imaging of Individual Bonds through Scanning Electron Energy-Loss Spectroscopy: Disulfide Bridges Linking Gold Nanoclusters. J Phys Chem Lett 2020; 11:796-799. [PMID: 31939675 DOI: 10.1021/acs.jpclett.9b03496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
As proof-of-principle of chemically selective, spatially resolved imaging of individual bonds, we carry out electron energy-loss spectroscopy in a scanning transmission electron microscopy instrument on atomically precise, thiolate-coated gold nanoclusters linked with 5,5'-bis(mercaptomethyl)-2,2'-bipyridine dithiol ligands. The images allow the identification of bridging disulfide bonds (R-S-S-R) between clusters, and X-ray photoelectron spectra support the finding.
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Affiliation(s)
- Karolina Sokołowska
- Department of Chemistry, Nanoscience Center , University of Jyväskylä , P.O. Box 35, 40014 Jyväskylä , Finland
| | - Zhongyue Luan
- Department of Material Science and Engineering , University of California, Irvine , Irvine , California 92697 , United States
| | - Eero Hulkko
- Department of Chemistry, Nanoscience Center , University of Jyväskylä , P.O. Box 35, 40014 Jyväskylä , Finland
- Department of Electronics and Nanoengineering , Aalto University , P.O. BOX 11000, FI-00076 Espoo , Finland
| | - Christoph Rameshan
- Faculty of Technical Chemistry, Institute of Materials Chemistry , Technische Universität Wien , 1060 Vienna , Austria
| | - Noelia Barrabés
- Faculty of Technical Chemistry, Institute of Materials Chemistry , Technische Universität Wien , 1060 Vienna , Austria
| | - Vartkess A Apkarian
- Department of Chemistry , University of California, Irvine , Irvine , California 92697 , United States
| | - Tanja Lahtinen
- Department of Chemistry, Nanoscience Center , University of Jyväskylä , P.O. Box 35, 40014 Jyväskylä , Finland
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26
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Yamashita U, Yoshinari N, Sodkhomkhum R, Meundaeng N, Konno T. Hydrogen-bonded metallosupramolecular helices composed of a nona-protonated spherical RhIII4ZnII4 cluster with twelve carboxylate arms. CrystEngComm 2020. [DOI: 10.1039/d0ce00133c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Anion-controlled formation of hydrogen-bonded metallosupramolecular helices from a RhIII4ZnII4 polycarboxylate is reported.
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Affiliation(s)
- Ukyo Yamashita
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Toyonaka
- 560-0043 Japan
| | - Nobuto Yoshinari
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Toyonaka
- 560-0043 Japan
| | | | - Natthaya Meundaeng
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Toyonaka
- 560-0043 Japan
| | - Takumi Konno
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Toyonaka
- 560-0043 Japan
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27
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Wen ZR, Guan ZJ, Zhang Y, Lin YM, Wang QM. [Au 7Ag 9(dppf) 3(CF 3CO 2) 7BF 4] n: a linear nanocluster polymer from molecular Au7Ag8 clusters covalently linked by silver atoms. Chem Commun (Camb) 2019; 55:12992-12995. [PMID: 31608354 DOI: 10.1039/c9cc05924e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report the total structure determination of a covalently bonded nanocluster polymer [Au7Ag9(dppf)3(CF3CO2)7BF4]n (1). This features a one-dimensional linear chain, consisting of unique molecular building blocks, Au7Ag8(dppf)3(CF3CO2)7 clusters, which are linked together by Ag-O bonds rather than Au-Au interactions or bidentate organic bridges as previously reported.
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Affiliation(s)
- Zhao-Rui Wen
- Department of Chemistry, College of Chemistry and Chemical Engineering Xiamen, 361005, P. R. China
| | - Zong-Jie Guan
- Department of Chemistry, College of Chemistry and Chemical Engineering Xiamen, 361005, P. R. China
| | - Ying Zhang
- Department of Chemistry, College of Chemistry and Chemical Engineering Xiamen, 361005, P. R. China
| | - Yu-Mei Lin
- Department of Chemistry, College of Chemistry and Chemical Engineering Xiamen, 361005, P. R. China
| | - Quan-Ming Wang
- Department of Chemistry, College of Chemistry and Chemical Engineering Xiamen, 361005, P. R. China and Department of Chemistry, Tsinghua University, China.
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28
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Intra-cluster growth meets inter-cluster assembly: The molecular and supramolecular chemistry of atomically precise nanoclusters. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.05.015] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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29
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Niihori Y, Yoshida K, Hossain S, Kurashige W, Negishi Y. Deepening the Understanding of Thiolate-Protected Metal Clusters Using High-Performance Liquid Chromatography. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180357] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Yoshiki Niihori
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Kana Yoshida
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Sakiat Hossain
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Wataru Kurashige
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
- Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yuichi Negishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
- Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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30
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Chakraborty P, Nag A, Chakraborty A, Pradeep T. Approaching Materials with Atomic Precision Using Supramolecular Cluster Assemblies. Acc Chem Res 2019; 52:2-11. [PMID: 30507167 DOI: 10.1021/acs.accounts.8b00369] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Supramolecular chemistry is a major area of chemistry that utilizes weaker non-covalent interactions between molecules, including hydrogen bonding, van der Waals, electrostatic, π···π, and C-H···π interactions. Such forces have been the basis of several molecular self-assemblies and host-guest complexes in organic, inorganic, and biological systems. Atomically precise nanoclusters (NCs) are materials of growing interest that display interesting structure-property correlations. The evolving science of such systems reaffirms their molecular behavior. This gives a possibility of exploring their supramolecular chemistry, leading to assemblies with similar or dissimilar cluster molecules. Such assemblies with compositional, structural, and conformational precision may ultimately result in cluster-assembled hybrid materials. In this Account, we present recent advancements on different possibilities of supramolecular interactions in atomically precise cluster systems that can occur at different length scales. We first present a brief discussion of the aspicule model of clusters, considering Au25(SR)18 as an example, that can explain various aspects of its atomic precision and distinguish the similar or dissimilar interacting sites in their structures. The supramolecular interaction of 4- tert-butylbenzyl mercaptan (BBSH)-protected [Au25(SBB)18]- NCs with cyclodextrins (CD) to form Au25SBB18∩CD n ( n = 1-4) and that of [Ag29(BDT)12]3- with fullerenes to form [Ag29(BDT)12(C60) n]3- ( n = 1-9) (BDT = 1,3-benzenedithiolate) are discussed subsequently. The formation of these adducts was studied by electrospray ionization mass spectrometry (ESI MS), optical absorption and NMR spectroscopy. In the subsequent sections, we discuss how variation in intercluster interactions can lead to polymorphic crystals, which are observable in single-crystal X-ray diffraction. Taking [Ag29(BDT)12(TPP)4]3- (TPP = triphenylphosphine) clusters as an example, we discuss how the different patterns of C-H···π and π···π interactions between the secondary ligands can alter the packing of the NCs into cubic and trigonal lattices. Finally, we discuss how the supramolecular interactions of atomically precise clusters can result in their hybrid assemblies with plasmonic nanostructures. The interaction of p-mercaptobenzoic acid ( p-MBA)-protected Ag44( p-MBA)30 NCs with tellurium nanowires (Te NWs) can form crossed-bilayer precision assemblies with a woven-fabric-like structure with an angle of 81° between the layers. Similar crossed-bilayer assemblies show an angle of 77° when Au102( p-MBA)44 clusters are used to form the structure. Such assemblies were studied by transmission electron microscopy (TEM). Precision in these hybrid assemblies of Te NWs was highly controlled by the geometry of the ligands on the NC surface. Moreover, we also present how Ag44( p-MBA)30 clusters can encapsulate gold nanorods to form cage-like nanostructures. Such studies involved TEM, scanning transmission electron microscopy (STEM), and three-dimensional tomographic reconstructions of the nanostructures. The hydrogen bonding interactions of the -COOH groups of the p-MBA ligands were the major driving force in both of these cases. An important aspect that is central to the advancement of the area is the close interplay of molecular tools such as MS with structural tools such as TEM along with detailed computational modeling. We finally conclude this Account with a future perspective on the supramolecular chemistry of clusters. Advancements in this field will help in developing new materials with potential optical, electrical, and mechanical properties.
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Affiliation(s)
- Papri Chakraborty
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Abhijit Nag
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Amrita Chakraborty
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Thalappil Pradeep
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
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31
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Bodiuzzaman M, Nag A, Pradeep Narayanan R, Chakraborty A, Bag R, Paramasivam G, Natarajan G, Sekar G, Ghosh S, Pradeep T. A covalently linked dimer of [Ag25(DMBT)18]−. Chem Commun (Camb) 2019; 55:5025-5028. [DOI: 10.1039/c9cc01289c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the first example of a covalently bound dimer of monolayer protected atomically precise silver nanocluster [Ag25(DMBT)18]− (DMBT stands for 2,4-dimethylbenzenethiol).
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32
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Eklöf-Österberg J, Gschneidtner T, Tebikachew B, Lara-Avila S, Moth-Poulsen K. Parallel Fabrication of Self-Assembled Nanogaps for Molecular Electronic Devices. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1803471. [PMID: 30358919 DOI: 10.1002/smll.201803471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/04/2018] [Indexed: 06/08/2023]
Abstract
Single molecule electronics might be a way to add additional function to nanoscale devices and continue miniaturization beyond current state of the art. Here, a combined top-down and bottom-up strategy is employed to assemble single molecules onto prefabricated electrodes. Protodevices, which are self-assembled nanogaps composed by two gold nanoparticles linked by a single or a few molecules, are guided onto top-down prefabricated nanosized nickel electrodes with sandwiched palladium layers. It is shown that an optimized geometry of multilayered metallic (top-down) electrodes facilitates the assembly of (bottom-up) nanostructures by surface charge interactions. Moreover, such assembly process results in an electrode-nanoparticle interface free from linking molecules that enable electrical measurements to probe electron transport properties of the nanoparticle-molecule-nanoparticle protodevices.
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Affiliation(s)
- Johnas Eklöf-Österberg
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, 412 96, Sweden
| | - Tina Gschneidtner
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, 412 96, Sweden
| | - Behabitu Tebikachew
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, 412 96, Sweden
| | - Samuel Lara-Avila
- Department of Microtechnology and Nanoscience, Chalmers University of Technology, Gothenburg, 412 96, Sweden
- National Physical Laboratory, Teddington, TW11 0LW, UK
| | - Kasper Moth-Poulsen
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, 412 96, Sweden
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33
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Nasaruddin RR, Chen T, Yan N, Xie J. Roles of thiolate ligands in the synthesis, properties and catalytic application of gold nanoclusters. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.04.016] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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34
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Sels A, Salassa G, Cousin F, Lee LT, Bürgi T. Covalently bonded multimers of Au 25(SBut) 18 as a conjugated system. NANOSCALE 2018; 10:12754-12762. [PMID: 29946605 DOI: 10.1039/c8nr01902a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Aromatic dithiol linkers were used to prepare aggregates of Au25(SR)18 clusters (SR: thiolate) via ligand exchange reactions. Fractions of different aggregate sizes were separated by size exclusion chromatography (SEC). The aggregates were characterized by UV-vis absorption spectroscopy, matrix assisted laser desorption ionization (MALDI) mass spectrometry, nuclear magnetic resonance (NMR) spectroscopy (including diffusion-ordered spectroscopy, DOSY) and small angle X-ray scattering (SAXS). At a 2 : 1 cluster : dithiol ratio, small aggregates (dimers, trimers) and also larger aggregates consisting of 10-20 Au25 clusters were formed, according to DOSY, besides unreacted (monomeric) Au25(SR)18. MALDI mass spectrometry shows signals consistent with dimers and trimers (doubly charged). The SAXS curves for the small aggregates can be well fitted by a pearl-necklace model. For the bigger aggregates the SAXS curves evidence a characteristic separation distance between the clusters within the aggregates, which is imposed by the length of the linker. The SAXS curves of these larger aggregates can be well fitted with a core-shell sphere model with a sticky hard-sphere structure factor, in agreement with closely packed aggregates. The absorption spectra of smaller aggregates resemble those of individual Au25(SR)18 clusters; however, and most importantly, the larger aggregates show completely different, less structured spectra with a new band emerging at 840 nm. We assign this drastic change in the absorption spectra and the new band to the electronic coupling between the clusters through the all aromatic linker. In accordance with this view, the aggregates formed with a linker containing methylene groups, thus breaking conjugation, do not show the band at 840 nm. By the addition of monothiols to the larger aggregates their size can be reduced through an "unlinking" reaction. This reaction also affects the band at 840 nm, which moves to higher energy when reducing the aggregate size, as would be expected within a particle in a box model. The electronic coupling between the clusters through the linker is the basis for future applications in nanoelectronics.
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Affiliation(s)
- Annelies Sels
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211 Geneva 4, Switzerland.
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35
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Sokolowska K, Hulkko E, Lehtovaara L, Lahtinen T. Dithiol-Induced Oligomerization of Thiol-Protected Gold Nanoclusters. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2018; 122:12524-12533. [PMID: 30258521 PMCID: PMC6150662 DOI: 10.1021/acs.jpcc.8b02988] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 05/16/2018] [Indexed: 06/08/2023]
Abstract
Controlled synthesis of nanostructure oligomers requires detailed understanding of their wet chemistry and the forces driving the polymerization process. In this paper, we report the main factors affecting the reaction yields of a dithiol-induced synthesis of covalently bound nanocluster dimers and oligomers and present a detailed analysis of possible reaction mechanisms. We synthesize the nanocluster oligomers using monodisperse para-mercaptobenzoic acid (p-MBA)-protected gold nanoclusters with a nominal composition of Au∼250(p-MBA) n to minimize ensemble effects on size, shape, and surface structure. Ligand exchange was performed on the nanoclusters with five different dithiol linkers: 5,5'-bis(mercaptomethyl)-2,2'-bipyridine, 4,4″-thiobisbenzenethiol, benzene-1,4-dithiol, 1,4-benzenedimethanethiol, and dimercaptostilbene. Oligomer yields depend strongly on the used dithiol and on the dithiol-to-nanocluster ratio. Detailed analysis of the reaction yields in combination with simulations suggests that the system reaches a dynamic equilibrium, where ligand exchange happens continuously forming and breaking nanocluster oligomers that are bound together by short chains of disulfide-bridged dithiols. Despite the dynamic nature of the system, dithiol-induced polymerization of nanoclusters is a general and straightforward approach to produce dimers and larger oligomers of thiol-protected nanoclusters. Our work provides physical insight into, offers tools for, and reveals challenges in the controlled synthesis of covalently bound nanoparticle assemblies.
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36
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Chakraborty A, Fernandez AC, Som A, Mondal B, Natarajan G, Paramasivam G, Lahtinen T, Häkkinen H, Nonappa, Pradeep T. Atomically Precise Nanocluster Assemblies Encapsulating Plasmonic Gold Nanorods. Angew Chem Int Ed Engl 2018; 57:6522-6526. [PMID: 29607588 DOI: 10.1002/anie.201802420] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Indexed: 12/27/2022]
Abstract
The self-assembled structures of atomically precise, ligand-protected noble metal nanoclusters leading to encapsulation of plasmonic gold nanorods (GNRs) is presented. Unlike highly sophisticated DNA nanotechnology, this strategically simple hydrogen bonding-directed self-assembly of nanoclusters leads to octahedral nanocrystals encapsulating GNRs. Specifically, the p-mercaptobenzoic acid (pMBA)-protected atomically precise silver nanocluster, Na4 [Ag44 (pMBA)30 ], and pMBA-functionalized GNRs were used. High-resolution transmission and scanning transmission electron tomographic reconstructions suggest that the geometry of the GNR surface is responsible for directing the assembly of silver nanoclusters via H-bonding, leading to octahedral symmetry. The use of water-dispersible gold nanoclusters, Au≈250 (pMBA)n and Au102 (pMBA)44 , also formed layered shells encapsulating GNRs. Such cluster assemblies on colloidal particles are a new category of precision hybrids with diverse possibilities.
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Affiliation(s)
- Amrita Chakraborty
- DST Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Ann Candice Fernandez
- DST Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India.,Current address, Department of Chemistry, University of Massachusetts, 710 N. Pleasant Street, Amherst, MA, 01003, USA
| | - Anirban Som
- DST Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Biswajit Mondal
- DST Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Ganapati Natarajan
- DST Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Ganesan Paramasivam
- DST Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Tanja Lahtinen
- Departments of Chemistry and Physics, Nanoscience Centre, University of Jyväskylä, Survontie 9, 40014, Jyväskylä, Finland
| | - Hannu Häkkinen
- Departments of Chemistry and Physics, Nanoscience Centre, University of Jyväskylä, Survontie 9, 40014, Jyväskylä, Finland
| | - Nonappa
- Departments of Applied Physics and Bioproducts & Biosystems, Aalto University, Puumiehenkuja 2, P.O. Box 15100, 00076, Aalto, Finland
| | - Thalappil Pradeep
- DST Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
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37
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Chakraborty A, Fernandez AC, Som A, Mondal B, Natarajan G, Paramasivam G, Lahtinen T, Häkkinen H, Nonappa, Pradeep T. Atomically Precise Nanocluster Assemblies Encapsulating Plasmonic Gold Nanorods. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802420] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Amrita Chakraborty
- DST Unit of Nanoscience and Thematic Unit of ExcellenceDepartment of ChemistryIndian Institute of Technology Madras Chennai 600036 India
| | - Ann Candice Fernandez
- DST Unit of Nanoscience and Thematic Unit of ExcellenceDepartment of ChemistryIndian Institute of Technology Madras Chennai 600036 India
- Current addressDepartment of ChemistryUniversity of Massachusetts 710 N. Pleasant Street Amherst MA 01003 USA
| | - Anirban Som
- DST Unit of Nanoscience and Thematic Unit of ExcellenceDepartment of ChemistryIndian Institute of Technology Madras Chennai 600036 India
| | - Biswajit Mondal
- DST Unit of Nanoscience and Thematic Unit of ExcellenceDepartment of ChemistryIndian Institute of Technology Madras Chennai 600036 India
| | - Ganapati Natarajan
- DST Unit of Nanoscience and Thematic Unit of ExcellenceDepartment of ChemistryIndian Institute of Technology Madras Chennai 600036 India
| | - Ganesan Paramasivam
- DST Unit of Nanoscience and Thematic Unit of ExcellenceDepartment of ChemistryIndian Institute of Technology Madras Chennai 600036 India
| | - Tanja Lahtinen
- Departments of Chemistry and Physics, Nanoscience CentreUniversity of Jyväskylä Survontie 9 40014 Jyväskylä Finland
| | - Hannu Häkkinen
- Departments of Chemistry and Physics, Nanoscience CentreUniversity of Jyväskylä Survontie 9 40014 Jyväskylä Finland
| | - Nonappa
- Departments of Applied Physics and Bioproducts & BiosystemsAalto University Puumiehenkuja 2, P.O. Box 15100 00076 Aalto Finland
| | - Thalappil Pradeep
- DST Unit of Nanoscience and Thematic Unit of ExcellenceDepartment of ChemistryIndian Institute of Technology Madras Chennai 600036 India
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38
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Weerawardene KLDM, Häkkinen H, Aikens CM. Connections Between Theory and Experiment for Gold and Silver Nanoclusters. Annu Rev Phys Chem 2018; 69:205-229. [PMID: 29490202 DOI: 10.1146/annurev-physchem-052516-050932] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Ligand-stabilized gold and silver nanoparticles are of tremendous current interest in sensing, catalysis, and energy applications. Experimental and theoretical studies have closely interacted to elucidate properties such as the geometric and electronic structures of these fascinating systems. In this review, the interplay between theory and experiment is described; areas such as optical absorption and doping, where the theory-experiment connections are well established, are discussed in detail; and the current status of these connections in newer fields of study, such as luminescence, transient absorption, and the effects of solvent and the surrounding environment, are highlighted. Close communication between theory and experiment has been extremely valuable for developing an understanding of these nanocluster systems in the past decade and will undoubtedly continue to play a major role in future years.
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Affiliation(s)
| | - Hannu Häkkinen
- Departments of Physics and Chemistry and Nanoscience Center, University of Jyväskylä, FI-40014 Jyväskylä, Finland
| | - Christine M Aikens
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, USA;
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39
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Salassa G, Sels A, Mancin F, Bürgi T. Dynamic Nature of Thiolate Monolayer in Au 25(SR) 18 Nanoclusters. ACS NANO 2017; 11:12609-12614. [PMID: 29166559 DOI: 10.1021/acsnano.7b06999] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Thiolate monolayer, protecting a gold nanocluster, is responsible for its chemical behavior and interaction with the environment. Understanding the parameters that influence the stability and reactivity of the monolayer will enable its precise and controlled functionalization. Here we present a protocol for the investigation of the monolayer reactivity in Au25(SR)18 based on MALDI mass spectrometry and NMR spectroscopy. Thiol exchange reaction between cluster and thiol molecules has been investigated showing how this reaction is affected by several factors (stability of the thiols in solution, the affinity of the sulfur to the gold cluster, intermolecular interactions within the ligand layer, etc.). Furthermore, intercluster thiol exchange has been clarified to occur during collisions between particles without thiol release to the solution. In this reaction, the stability of the thiols in solution and the affinity of the sulfur to the gold for the two thiols do not affect the equilibrium position because for both thiols one S-Au bond is broken and one is formed within the cycle. Importantly, the rate of direct thiol exchange between clusters is comparable to that of the ligand exchange with free thiols. However, the thermodynamic driving force of the two reactions is different, since only the latter involves free thiol species.
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Affiliation(s)
- Giovanni Salassa
- Department of Physical Chemistry, University of Geneva , 30 Quai Ernest-Ansermet, 1211 Geneva 4, Switzerland
| | - Annelies Sels
- Department of Physical Chemistry, University of Geneva , 30 Quai Ernest-Ansermet, 1211 Geneva 4, Switzerland
| | - Fabrizio Mancin
- Dipartimento di Scienze Chimiche, Università di Padova , via Marzolo 1, 35122 Padova, Italy
| | - Thomas Bürgi
- Department of Physical Chemistry, University of Geneva , 30 Quai Ernest-Ansermet, 1211 Geneva 4, Switzerland
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40
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Stark MC, Baikoghli MA, Lahtinen T, Malola S, Xing L, Nguyen M, Nguyen M, Sikaroudi A, Marjomäki V, Häkkinen H, Cheng RH. Structural characterization of site-modified nanocapsid with monodispersed gold clusters. Sci Rep 2017; 7:17048. [PMID: 29213060 PMCID: PMC5719084 DOI: 10.1038/s41598-017-17171-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 11/22/2017] [Indexed: 01/12/2023] Open
Abstract
Hepatitis E Virus-like particles self-assemble in to noninfectious nanocapsids that are resistant to proteolytic/acidic mucosal delivery conditions. Previously, the nanocapsid was engineered to specifically bind and enter breast cancer cells, where successful tumor targeting was demonstrated in animal models. In the present study, the nanocapsid surface was modified with a solvent-exposed cysteine to conjugate monolayer protected gold nanoclusters (AuNC). Unlike commercially available gold nanoparticles, AuNCs monodisperse in water and are composed of a discrete number of gold atoms, forming a crystalline gold core. Au102 pMBA44 (Au102) was an ideal conjugate given its small 2.5 nm size and detectability in cryoEM. Au102 was bound directly to nanocapsid surface cysteines via direct ligand exchange. In addition, Au102 was functionalized with a maleimide linker (Au102_C6MI) for maleimide-thiol conjugation to nanocapsid cysteines. The AuNC-bound nanocapsid constructs were conjugated in various conditions. We found Au102_C6MI to bind nanocapsid more efficiently, while Au102 remained more soluble over time. Nanocapsids conjugated to Au102_C6MI were imaged in cryoEM for single particle reconstruction to localize AuNC position on the nanocapsid surface. We resolved five unique high intensity volumes that formed a ring-shaped density at the 5-fold symmetry center. This finding was further supported by independent rigid modeling.
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Affiliation(s)
- Marie C Stark
- Department of Biology and Environmental Science, Nanoscience center, University of Jyväskylä, Jyväskylä, FI-40014, Finland
- Department of Molecular and Cellular Biology, University of California, Davis, CA, 95616, USA
| | - Mo A Baikoghli
- Department of Molecular and Cellular Biology, University of California, Davis, CA, 95616, USA
| | - Tanja Lahtinen
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, Jyväskylä, FI-40014, Finland
| | - Sami Malola
- Department of Physics, Nanoscience center, University of Jyväskylä, Jyväskylä, FI-40014, Finland
| | - Li Xing
- Department of Biology and Environmental Science, Nanoscience center, University of Jyväskylä, Jyväskylä, FI-40014, Finland
| | - Michelle Nguyen
- Department of Molecular and Cellular Biology, University of California, Davis, CA, 95616, USA
| | - Marina Nguyen
- Department of Molecular and Cellular Biology, University of California, Davis, CA, 95616, USA
| | - Aria Sikaroudi
- Department of Molecular and Cellular Biology, University of California, Davis, CA, 95616, USA
| | - Varpu Marjomäki
- Department of Biology and Environmental Science, Nanoscience center, University of Jyväskylä, Jyväskylä, FI-40014, Finland
| | - Hannu Häkkinen
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, Jyväskylä, FI-40014, Finland.
- Department of Physics, Nanoscience center, University of Jyväskylä, Jyväskylä, FI-40014, Finland.
| | - R Holland Cheng
- Department of Biology and Environmental Science, Nanoscience center, University of Jyväskylä, Jyväskylä, FI-40014, Finland.
- Department of Molecular and Cellular Biology, University of California, Davis, CA, 95616, USA.
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Lerch S, Reinhard BM. Spectral signatures of charge transfer in assemblies of molecularly-linked plasmonic nanoparticles. INTERNATIONAL JOURNAL OF MODERN PHYSICS. B 2017; 31:1740002. [PMID: 29391660 PMCID: PMC5788194 DOI: 10.1142/s0217979217400021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Self-assembly of functionalized nanoparticles (NPs) provides a unique class of nanomaterials for exploring and utilizing quantum-plasmonic effects that occur if the interparticle separation between NPs approaches a few nanometers and below. We review recent theoretical and experimental studies of plasmon coupling in self-assembled NP structures that contain molecular linkers between the NPs. Charge transfer through the interparticle gap of an NP dimer results in a significant blue-shift of the bonding dipolar plasmon (BDP) mode relative to classical electromagnetic predictions, and gives rise to new coupled plasmon modes, the so-called charge transfer plasmon (CTP) modes. The blue-shift of the plasmon spectrum is accompanied by a weakening of the electromagnetic field in the gap of the NPs. Due to an optical far-field signature that is sensitive to charge transfer across the gap, plasmonic molecules represent a sensor platform for detecting and characterizing gap conductivity in an optical fashion and for characterizing the role of molecules in facilitating the charge transfer across the gap.
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Affiliation(s)
- Sarah Lerch
- Department of Chemistry, Boston University, 8 Saint Mary's Street, Boston, MA 02215, USA. The Photonics Center, Boston University, 8 Saint Mary's Street, Boston, MA 02215, USA
| | - Björn M Reinhard
- Department of Chemistry, Boston University, 8 Saint Mary's Street, Boston, MA 02215, USA. The Photonics Center, Boston University, 8 Saint Mary's Street, Boston, MA 02215, USA
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Rossi TP, Kuisma M, Puska MJ, Nieminen RM, Erhart P. Kohn–Sham Decomposition in Real-Time Time-Dependent Density-Functional Theory: An Efficient Tool for Analyzing Plasmonic Excitations. J Chem Theory Comput 2017; 13:4779-4790. [DOI: 10.1021/acs.jctc.7b00589] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tuomas P. Rossi
- COMP
Centre of Excellence, Department of Applied Physics, Aalto University, P.O.
Box 11100, FI-00076 Aalto, Finland
| | - Mikael Kuisma
- Department
of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
- Department
of Chemistry, Nanoscience Center, University of Jyväskylä, FI-40014 Jyväskylä, Finland
| | - Martti J. Puska
- COMP
Centre of Excellence, Department of Applied Physics, Aalto University, P.O.
Box 11100, FI-00076 Aalto, Finland
| | - Risto M. Nieminen
- COMP
Centre of Excellence, Department of Applied Physics, Aalto University, P.O.
Box 11100, FI-00076 Aalto, Finland
| | - Paul Erhart
- Department
of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
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43
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Kysliak O, Schrenk C, Schnepf A. {[Si(SiMe3)3]2Ge9-SiMe2-(C6H4)-SiMe2-Ge9[Si(SiMe3)3]2K}−: The Connection of Metalloid Clusters via an Organic Linker. Inorg Chem 2017; 56:9693-9697. [DOI: 10.1021/acs.inorgchem.7b01186] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Oleksandr Kysliak
- Chemistry Department, University Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Claudio Schrenk
- Chemistry Department, University Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Andreas Schnepf
- Chemistry Department, University Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
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Lahtinen T, Haataja JS, Tero TR, Häkkinen H, Ikkala O. Template-Free Supracolloidal Self-Assembly of Atomically Precise Gold Nanoclusters: From 2D Colloidal Crystals to Spherical Capsids. Angew Chem Int Ed Engl 2016; 55:16035-16038. [PMID: 27879034 DOI: 10.1002/anie.201609036] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 10/15/2016] [Indexed: 01/03/2023]
Abstract
We report supracolloidal self-assembly of atomically precise and strictly monodisperse gold nanoclusters involving p-mercaptobenzoic acid ligands (Au102 -pMBA44 ) under aqueous conditions into hexagonally packed monolayer-thick two-dimensional facetted colloidal crystals (thickness 2.7 nm) and their bending to closed shells leading to spherical capsids (d ca. 200 nm), as controlled by solvent conditions. The 2D colloidal assembly is driven in template-free manner by the spontaneous patchiness of the pMBA ligands around the Au102 -pMBA44 nanoclusters preferably towards equatorial plane, thus promoting inter-nanocluster hydrogen bonds and high packing to planar sheets. More generally, the findings encourage to explore atomically precise nanoclusters towards highly controlled colloidal self-assemblies.
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Affiliation(s)
- Tanja Lahtinen
- Departments of Chemistry and Physics, Nanoscience centre, University of Jyväskylä, Survontie 9, 40014, Jyväskylä, Finland
| | - Johannes S Haataja
- Department of Applied Physics, Molecular Materials Group, Aalto University School of Science, Puumiehenkuja 2, Espoo, 02150, Finland
| | - Tiia-Riikka Tero
- Departments of Chemistry and Physics, Nanoscience centre, University of Jyväskylä, Survontie 9, 40014, Jyväskylä, Finland
| | - Hannu Häkkinen
- Departments of Chemistry and Physics, Nanoscience centre, University of Jyväskylä, Survontie 9, 40014, Jyväskylä, Finland
| | - Olli Ikkala
- Department of Applied Physics, Molecular Materials Group, Aalto University School of Science, Puumiehenkuja 2, Espoo, 02150, Finland
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45
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Nonappa, Lahtinen T, Haataja JS, Tero TR, Häkkinen H, Ikkala O. Template-Free Supracolloidal Self-Assembly of Atomically Precise Gold Nanoclusters: From 2D Colloidal Crystals to Spherical Capsids. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609036] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Nonappa
- Department of Applied Physics, Molecular Materials Group; Aalto University School of Science; Puumiehenkuja 2 Espoo 02150 Finland
| | - Tanja Lahtinen
- Departments of Chemistry and Physics, Nanoscience centre; University of Jyväskylä; Survontie 9 40014 Jyväskylä Finland
| | - Johannes. S. Haataja
- Department of Applied Physics, Molecular Materials Group; Aalto University School of Science; Puumiehenkuja 2 Espoo 02150 Finland
| | - Tiia-Riikka Tero
- Departments of Chemistry and Physics, Nanoscience centre; University of Jyväskylä; Survontie 9 40014 Jyväskylä Finland
| | - Hannu Häkkinen
- Departments of Chemistry and Physics, Nanoscience centre; University of Jyväskylä; Survontie 9 40014 Jyväskylä Finland
| | - Olli Ikkala
- Department of Applied Physics, Molecular Materials Group; Aalto University School of Science; Puumiehenkuja 2 Espoo 02150 Finland
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