1
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Berg I, Schio L, Reitz J, Molteni E, Lahav L, Bolaños CG, Goldoni A, Grazioli C, Fratesi G, Hansmann MM, Floreano L, Gross E. Self-Assembled Monolayers of N-Heterocyclic Olefins on Au(111). Angew Chem Int Ed Engl 2023; 62:e202311832. [PMID: 37743324 DOI: 10.1002/anie.202311832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/07/2023] [Accepted: 09/22/2023] [Indexed: 09/26/2023]
Abstract
Self-assembled monolayers (SAMs) of N-heterocyclic olefins (NHOs) have been prepared on Au(111) and their thermal stability, adsorption geometry, and molecular order were characterized by X-ray photoelectron spectroscopy, polarized X-ray absorption spectroscopy, scanning tunneling microscopy (STM), and density functional theory (DFT) calculations. The strong σ-bond character of NHO anchoring to Au induced high geometrical flexibility that enabled a flat-lying adsorption geometry via coordination to a gold adatom. The flat-lying adsorption geometry was utilized to further increase the surface interaction of the NHO monolayer by backbone functionalization with methyl groups that induced high thermal stability and a large impact on work-function values, which outperformed that of N-heterocyclic carbenes. STM measurements, supported by DFT modeling, identified that the NHOs were self-assembled in dimers, trimers, and tetramers constructed of two, three, and four complexes of NHO-Au-adatom. This self-assembly pattern was correlated to strong NHO-Au interactions and steric hindrance between adsorbates, demonstrating the crucial influence of the carbon-metal σ-bond on monolayer properties.
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Affiliation(s)
- Iris Berg
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem, 91904, Israel
| | - Luca Schio
- CNR-IOM, Laboratorio TASC, Basovizza SS-14, Km 163.5, Trieste, 34012, Italy
| | - Justus Reitz
- Technische Universität Dortmund, Fakultät für Chemie und Chemische Biologie, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Elena Molteni
- Dipartimento di Fisica "Aldo Pontremoli'' Università degli Studi di Milano, Via Celoria 16, 20133, Milano, Italy
| | - Linoy Lahav
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem, 91904, Israel
| | | | - Andrea Goldoni
- Elettra-Sincrotrone Trieste S.C.p.A, Basovizza SS-14, Km 163.5, Trieste, 34149, Italy
| | - Cesare Grazioli
- CNR-IOM, Laboratorio TASC, Basovizza SS-14, Km 163.5, Trieste, 34012, Italy
| | - Guido Fratesi
- Dipartimento di Fisica "Aldo Pontremoli'' Università degli Studi di Milano, Via Celoria 16, 20133, Milano, Italy
| | - Max M Hansmann
- Technische Universität Dortmund, Fakultät für Chemie und Chemische Biologie, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Luca Floreano
- CNR-IOM, Laboratorio TASC, Basovizza SS-14, Km 163.5, Trieste, 34012, Italy
| | - Elad Gross
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem, 91904, Israel
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2
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Wang YS, Li H, Bai S, Wang YY, Han YF. N-Heterocyclic carbene-stabilized platinum nanoparticles within a porphyrinic nanocage for selective photooxidation. Sci China Chem 2023. [DOI: 10.1007/s11426-022-1504-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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3
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Ikemoto S, Muratsugu S, Koitaya T, Tsuji Y, Das M, Yoshizawa K, Glorius F, Tada M. Coordination-Induced Trigger for Activity: N-Heterocyclic Carbene-Decorated Ceria Catalysts Incorporating Cr and Rh with Activity Induction by Surface Adsorption Site Control. J Am Chem Soc 2023; 145:1497-1504. [PMID: 36511728 DOI: 10.1021/jacs.2c07290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A coordination-induced trigger for catalytic activity is proposed on an N-heterocyclic carbene (NHC)-decorated ceria catalyst incorporating Cr and Rh (ICy-r-Cr0.19Rh0.06CeOz). ICy-r-Cr0.19Rh0.06CeOz was prepared by grafting 1,3-dicyclohexylimidazol-2-ylidene (ICy) onto H2-reduced Cr0.19Rh0.06CeOz (r-Cr0.19Rh0.06CeOz) surfaces, which went on to exhibit substantial catalytic activity for the 1,4-arylation of cyclohexenone with phenylboronic acid, whereas r-Cr0.19Rh0.06CeOz without ICy was inactive. FT-IR, Rh K-edge XAFS, XPS, and photoluminescence spectroscopy showed that the ICy carbene-coordinated Rh nanoclusters were the key active species. The coordination-induced trigger for catalytic activity on the ICy-bearing Rh nanoclusters could not be attributed to electronic donation from ICy to the Rh nanoclusters. DFT calculations suggested that ICy controlled the adsorption sites of the phenyl group on the Rh nanocluster to promote the C-C bond formation of the phenyl group and cyclohexenone.
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Affiliation(s)
- Satoru Ikemoto
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Satoshi Muratsugu
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Takanori Koitaya
- Department of Materials Molecular Science, Institute for Molecular Science, Myodaiji-cho, Okazaki, Aichi 444-8585, Japan
| | - Yuta Tsuji
- Institute for Materials Chemistry and Engineering and International Research Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - Mowpriya Das
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstrasse 40, 48149 Münster, Germany
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering and International Research Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Frank Glorius
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstrasse 40, 48149 Münster, Germany
| | - Mizuki Tada
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan.,Research Center for Materials Science (RCMS), Integrated Research Consortium on Chemical Sciences (IRCCS), and Institute for Advanced Study, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
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5
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Jia J, Wu T, Fu Y, Hu Z, Tang H, Pan Y, Huang F. Integrating Terminal CoBr
n
Salts into a 2D Cobalt(II) Coordination Polymer to Promote the
β
‐(
E)−
Selective Hydroboration of Alkynes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jun‐Song Jia
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Tai‐Xue Wu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Yi‐Jia Fu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Zhi‐Rong Hu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Hai‐Tao Tang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Ying‐Ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Fu‐Ping Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
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6
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Kaps A, Foro S, Plenio H. Bi- and trimetallic complexes with macrocyclic xanthene-4,5-diNHC ligands. Dalton Trans 2022; 51:2464-2479. [PMID: 35048930 DOI: 10.1039/d1dt03857e] [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
Three different types of bimetallic NHC-metal complexes were synthesized, whose NHC units are attached at the 4,5-positions of xanthene. The NHC units are in close proximity and are designed such that each carbene coordinates one ML unit, while the chelation of one metal by two NHC is not possible. Several xanthene-((NHC)ML)2 complexes with ML = RhCl(cod), IrCl(cod), RhCl(CO)2, IrCl(CO)2, AuCl, AgCl, CuCl and Pd(allyl)Cl were synthesized and investigated.
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Affiliation(s)
- Alexander Kaps
- Organometallic Chemistry, Technical University of Darmstadt, Alarich-Weiss-Str. 12, 64287 Darmstadt, Germany.
| | - Sabine Foro
- Organometallic Chemistry, Technical University of Darmstadt, Alarich-Weiss-Str. 12, 64287 Darmstadt, Germany.
| | - Herbert Plenio
- Organometallic Chemistry, Technical University of Darmstadt, Alarich-Weiss-Str. 12, 64287 Darmstadt, Germany.
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7
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García-Zaragoza A, Cerezo-Navarrete C, Mollar-Cuni A, Oña-Burgos P, Mata JA, Corma A, Martínez-Prieto LM. Tailoring graphene-supported Ru nanoparticles by functionalization with pyrene-tagged N-heterocyclic carbenes. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02063c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Controlling the reactivity and stability of graphene-supported Ru NPs by modifying their surface with pyrene-tagged N-heterocyclic carbene ligands.
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Affiliation(s)
- Adrián García-Zaragoza
- ITQ, Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos S/N 46022, Valencia, Spain
| | - Christian Cerezo-Navarrete
- ITQ, Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos S/N 46022, Valencia, Spain
| | - Andrés Mollar-Cuni
- Institute of Advanced Materials (INAM), Universitat Jaume I, Avda. Sos Baynat S/N 12006, Castellón, Spain
| | - Pascual Oña-Burgos
- ITQ, Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos S/N 46022, Valencia, Spain
| | - Jose A. Mata
- Institute of Advanced Materials (INAM), Universitat Jaume I, Avda. Sos Baynat S/N 12006, Castellón, Spain
| | - Avelino Corma
- ITQ, Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos S/N 46022, Valencia, Spain
| | - Luis M. Martínez-Prieto
- ITQ, Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos S/N 46022, Valencia, Spain
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8
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9
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Organometallic Nanoparticles Ligated by NHCs: Synthesis, Surface Chemistry and Ligand Effects. Catalysts 2020. [DOI: 10.3390/catal10101144] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Over the last 20 years, the use of metallic nanoparticles (MNPs) in catalysis has awakened a great interest in the scientific community, mainly due to the many advantages of this kind of nanostructures in catalytic applications. MNPs exhibit the characteristic stability of heterogeneous catalysts, but with a higher active surface area than conventional metallic materials. However, despite their higher activity, MNPs present a wide variety of active sites, which makes it difficult to control their selectivity in catalytic processes. An efficient way to modulate the activity/selectivity of MNPs is the use of coordinating ligands, which transforms the MNP surface, subsequently modifying the nanoparticle catalytic properties. In relation to this, the use of N-heterocyclic carbenes (NHC) as stabilizing ligands has demonstrated to be an effective tool to modify the size, stability, solubility and catalytic reactivity of MNPs. Although NHC-stabilized MNPs can be prepared by different synthetic methods, this review is centered on those prepared by an organometallic approach. Here, an organometallic precursor is decomposed under H2 in the presence of non-stoichiometric amounts of the corresponding NHC-ligand. The resulting organometallic nanoparticles present a clean surface, which makes them perfect candidates for catalytic applications and surface studies. In short, this revision study emphasizes the great versatility of NHC ligands as MNP stabilizers, as well as their influence on catalysis.
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Zhang H, Zhu J, Hou F, Quan Z, Wang X. A catalytic system with high efficiency and recyclability based on Suzuki and Heck reaction in aqueous admicellar medium. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hao Zhang
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou Gansu 730070 People's Republic of China
- Gansu International Scientific and Technological Cooperation Base of Water‐Retention Chemical Functional Materials Lanzhou Gansu 730070 People's Republic of China
| | - Ji‐Hua Zhu
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou Gansu 730070 People's Republic of China
- Gansu International Scientific and Technological Cooperation Base of Water‐Retention Chemical Functional Materials Lanzhou Gansu 730070 People's Republic of China
| | - Fei Hou
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou Gansu 730070 People's Republic of China
- Gansu International Scientific and Technological Cooperation Base of Water‐Retention Chemical Functional Materials Lanzhou Gansu 730070 People's Republic of China
| | - Zheng‐Jun Quan
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou Gansu 730070 People's Republic of China
- Gansu International Scientific and Technological Cooperation Base of Water‐Retention Chemical Functional Materials Lanzhou Gansu 730070 People's Republic of China
| | - Xi‐Cun Wang
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou Gansu 730070 People's Republic of China
- Gansu International Scientific and Technological Cooperation Base of Water‐Retention Chemical Functional Materials Lanzhou Gansu 730070 People's Republic of China
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11
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Moraes LC, Figueiredo RC, Espinós JP, Vattier F, Franconetti A, Jaime C, Lacroix B, Rojo J, Lara P, Conejero S. Platinum nanoparticles stabilized by N-heterocyclic thiones. Synthesis and catalytic activity in mono- and di-hydroboration of alkynes. NANOSCALE 2020; 12:6821-6831. [PMID: 32182323 DOI: 10.1039/d0nr00251h] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
N-Heterocyclic Thiones (NHT) proved to be efficient ligands for the stabilization of small platinum nanoparticles (1.3-1.7 nm), synthesized by decomposition of [Pt(dba)2], under a H2 atmosphere, in the presence of variable sub-stoichiometric amounts of the NHT. Full characterization by means of TEM, HR-TEM, NMR, ICP, TGA and XPS have been carried out, providing information about the nature of the metal nanoparticles and the interaction of the NHT ligands to the metal surface. Importantly, DFT calculations indicate that some NHT ligands interact with the metal through the C[double bond, length as m-dash]C double bond of the imidazole fragment in addition to the sulfur atom, thus providing additional stabilization to the nanoparticles. According to XPS, TGA and ICP techniques, the surface coverage by the ligand increases by decreasing the size of the substituents on the nitrogen atom. The platinum nanoparticles have been used as catalyst in the hydroboration of alkynes. The most active system is that with a less covered surface area lacking an interaction of the ligand by means of the C[double bond, length as m-dash]C double bond. This catalyst hydroborates alkynes with excellent selectivities towards the monoborylated anti-Markovnikov product (vinyl-boronate) when one equiv. of borane is used. Very interestingly, aliphatic alkynes undergo a second hydroborylation process leading to the corresponding 1,1- and 1,2-diboroylated species with good selectivities towards the former.
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Affiliation(s)
- Leonardo C Moraes
- Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, C/Américo Vespucio 49, 41092, Seville, Spain.
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12
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Westmoreland DE, López-Arteaga R, Weiss EA. N-Heterocyclic Carbenes as Reversible Exciton-Delocalizing Ligands for Photoluminescent Quantum Dots. J Am Chem Soc 2020; 142:2690-2696. [PMID: 31934758 DOI: 10.1021/jacs.9b13605] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Delocalization of excitons within semiconductor quantum dots (QDs) into states at the interface of the inorganic core and organic ligand shell by so-called "exciton-delocalizing ligands (EDLs)" is a promising strategy to enhance coupling of QD excitons with proximate molecules, ions, or other QDs. EDLs thereby enable enhanced rates of charge carrier extraction from, and transport among, QDs and dynamic colorimetric sensing. The application of reported EDLs-which bind to the QDs through thiolates or dithiocarbamates-is however limited by the irreversibility of their binding and their low oxidation potentials, which lead to a high yield of photoluminescence-quenching hole trapping on the EDL. This article describes a new class of EDLs for QDs, 1,3-dimethyl-4,5-disubstituted imidazolylidene N-heterocyclic carbenes (NHCs), where the 4,5-substituents are Me, H, or Cl. Postsynthetic ligand exchange of native oleate capping ligands for NHCs results in a bathochromic shift of the optical band gap of CdSe QDs (R = 1.17 nm) of up to 111 meV while the colloidal stability of the QDs is maintained. This shift is reversible for the MeNHC-capped and HNHC-capped QDs upon protonation of the NHC. The magnitude of exciton delocalization induced by the NHC (after scaling for surface coverage) increases with the increasing acidity of its π system, which depends on the substituent in the 4,5-positions of the imidazolylidene. The NHC-capped QDs maintain photoluminescence quantum yields of up to 4.2 ± 1.8% for shifts of the optical band gap as large as 106 meV.
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Affiliation(s)
- Dana E Westmoreland
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208-3113 , United States
| | - Rafael López-Arteaga
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208-3113 , United States
| | - Emily A Weiss
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208-3113 , United States
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13
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Dery S, Berg I, Kim S, Cossaro A, Verdini A, Floreano L, Toste FD, Gross E. Strong Metal-Adsorbate Interactions Increase the Reactivity and Decrease the Orientational Order of OH-Functionalized N-Heterocyclic Carbene Monolayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:697-703. [PMID: 31762273 DOI: 10.1021/acs.langmuir.9b02401] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Fundamental understanding of the correlation between the structure and reactivity of chemically addressable N-heterocyclic carbene (NHC) molecules on various surfaces is essential for the design of functional NHC-based self-assembled monolayers. In this work, we identified the ways by which the deposition of chemically addressable OH-NHCs on Au(111) or Pt(111) surfaces modified the anchoring geometry and chemical reactivity of surface-anchored NHCs. The properties of surface-anchored NHCs were probed by conducting X-ray photoelectron spectroscopy and polarized near-edge X-ray absorption fine structure measurements. While no preferred orientation was identified for OH-NHCs on Pt(111), the anchored molecules adopted a preferred flat-lying position on Au(111). Dehydrogenation and aromatization of the imidazoline ring along with partial hydroxyl oxidation were detected in OH-NHCs that were anchored on Au(111). The dehydrogenation and aromatization reactions were facilitated, along with partial decomposition, for OH-NHCs that were anchored on Pt(111). The spectroscopic results reveal that stronger metal-adsorbate interactions increase the reactivity of surface-anchored OH-NHCs while decreasing their molecular orientational order.
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Affiliation(s)
- Shahar Dery
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology , The Hebrew University , Jerusalem 91904 , Israel
| | - Iris Berg
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology , The Hebrew University , Jerusalem 91904 , Israel
| | - Suhong Kim
- Department of Chemistry , University of California, Berkeley , Berkeley , California 94720 , United States
| | - Albano Cossaro
- CNR-IOM, Laboratorio Nazionale TASC , Basovizza SS-14 , Trieste 34012 , Italy
| | - Alberto Verdini
- CNR-IOM, Laboratorio Nazionale TASC , Basovizza SS-14 , Trieste 34012 , Italy
| | - Luca Floreano
- CNR-IOM, Laboratorio Nazionale TASC , Basovizza SS-14 , Trieste 34012 , Italy
| | - F Dean Toste
- Department of Chemistry , University of California, Berkeley , Berkeley , California 94720 , United States
| | - Elad Gross
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology , The Hebrew University , Jerusalem 91904 , Israel
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14
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López-Vinasco AM, Martínez-Prieto LM, Asensio JM, Lecante P, Chaudret B, Cámpora J, van Leeuwen PWNM. Novel nickel nanoparticles stabilized by imidazolium-amidinate ligands for selective hydrogenation of alkynes. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02172h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel magnetically recoverable nickel nanoparticles (Ni NPs) stabilized by imidazolium-amidinate ligands selectively hydrogenate alkynes into (Z)-alkenes under mild conditions.
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Affiliation(s)
- Angela M. López-Vinasco
- LPCNO; Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut National des Sciences Appliquées-Toulouse
- F-31077 Toulouse
- France
| | - Luis M. Martínez-Prieto
- LPCNO; Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut National des Sciences Appliquées-Toulouse
- F-31077 Toulouse
- France
| | - Juan M. Asensio
- LPCNO; Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut National des Sciences Appliquées-Toulouse
- F-31077 Toulouse
- France
| | - Pierre Lecante
- CEMES (Centre d'Elaboration de Matériaux et d'Etudes Structurales)
- CNRS
- F-31055 Toulouse
- France
| | - Bruno Chaudret
- LPCNO; Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut National des Sciences Appliquées-Toulouse
- F-31077 Toulouse
- France
| | - Juan Cámpora
- IIQ, Instituto de Investigaciones Químicas
- CSIC-Universidad de Sevilla
- 41092 Sevilla
- Spain
| | - Piet W. N. M. van Leeuwen
- LPCNO; Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut National des Sciences Appliquées-Toulouse
- F-31077 Toulouse
- France
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15
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Ruiz-Varilla AM, Baquero EA, Chaudret B, de Jesús E, Gonzalez-Arellano C, Flores JC. Water-soluble NHC-stabilized platinum nanoparticles as recoverable catalysts for hydrogenation in water. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00481b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Aromatic compounds have been hydrogenated in water using recoverable catalysts based on water-soluble platinum nanoparticles capped with NHC ligands.
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Affiliation(s)
- Andrea M. Ruiz-Varilla
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación Química “Andrés M. del Río”
- Campus Universitario
- Universidad de Alcalá
- Madrid
| | - Edwin A. Baquero
- Departamento de Química
- Facultad de Ciencias
- Universidad Nacional de Colombia
- 111321 Bogotá
- Colombia
| | | | - Ernesto de Jesús
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación Química “Andrés M. del Río”
- Campus Universitario
- Universidad de Alcalá
- Madrid
| | - Camino Gonzalez-Arellano
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación Química “Andrés M. del Río”
- Campus Universitario
- Universidad de Alcalá
- Madrid
| | - Juan C. Flores
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación Química “Andrés M. del Río”
- Campus Universitario
- Universidad de Alcalá
- Madrid
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16
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Alwin‐Mittasch‐Preis: P. van Leeuwen / BioTrans‐Preise: D. B. Janssen und D. Rother / Tetrahedron‐Preis für Kreativität: P. G. Schultz. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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17
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Alwin Mittasch Prize: P. van Leeuwen / BioTrans Prizes: D. B. Janssen and D. Rother / Tetrahedron Prize for Creativity: P. G. Schultz. Angew Chem Int Ed Engl 2019; 58:15579. [DOI: 10.1002/anie.201912207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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18
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Shapovalov SS, Tikhonova OG, Grigor’eva MO, Skabitskii IV, Simonenko NP. Metal Complexes with the N-Heterocyclic Ligand: Synthesis, Structures, and Thermal Decomposition. RUSS J COORD CHEM+ 2019. [DOI: 10.1134/s1070328419100063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Young AJ, Sauer M, Rubio GMDM, Sato A, Foelske A, Serpell CJ, Chin JM, Reithofer MR. One-step synthesis and XPS investigations of chiral NHC-Au(0)/Au(i) nanoparticles. NANOSCALE 2019; 11:8327-8333. [PMID: 30984947 DOI: 10.1039/c9nr00905a] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Although N-heterocyclic carbenes (NHCs) have been demonstrated as suitable ligands for the stabilisation of gold nanoparticles (AuNPs) through a variety of methods, the manner in which such AuNPs form is yet to be fully elucidated. We report a simple and fast one-step synthesis of uniform chiral (l/d)-histidin-2-ylidene stabilised gold nanoparticles using the organometallic Au(i) complex as a well defined starting material. The resulting nanoparticles have an average size of 2.35 ± 0.43 nm for the L analog whereas an average size of 2.25 ± 0.39 nm was found for the D analog. X-ray photoelectron spectroscopy analyses reveal the presence of Au(i) and Au(0) in all NHC stabilised AuNPs. In contrast, measured X-ray photoelectron spectra of dodecanethiol protected gold nanoparticles showed only the presence of a Au(0) species. This observation leads us to postulate that AuNPs synthesised from organometallic NHC-Au(i) complexes exhibit a monolayer of Au(i) surrounding a Au(0) core. This work highlights the importance of synthetic method choice for NHC-stabilized AuNPs, as this could determine Au oxidation states and resulting AuNP properties such as catalytic activities and stabilities.
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Affiliation(s)
- Adam J Young
- Gray Centre for Advanced Materials, School of Mathematics and Physical Sciences, University of Hull, Cottingham Road, Hull, East Riding of Yorkshire, HU6 7RX, UK.
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20
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Lebedeva A, Albuquerque BL, Domingos JB, Lamonier JF, Giraudon JM, Lecante P, Denicourt-Nowicki A, Roucoux A. Ruthenium Trichloride Catalyst in Water: Ru Colloids versus Ru Dimer Characterization Investigations. Inorg Chem 2019; 58:4141-4151. [PMID: 30868870 DOI: 10.1021/acs.inorgchem.8b03144] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An easy-to-prepare ruthenium catalyst obtained from ruthenium(III) trichloride in water demonstrates efficient performances in the oxidation of several cycloalkanes with high selectivity toward the ketone. In this work, several physicochemical techniques were used to demonstrate the real nature of the ruthenium salt still unknown in water and to define the active species for this Csp3-H bond functionalization. From transmission electron microscopy analyses corroborated by SAXS analyses, spherical nanoobjects were observed with an average diameter of 1.75 nm, thus being in favor of the formation of reduced species. However, further investigations, based on X-ray scattering and absorption analyses, showed no evidence of the presence of a metallic Ru-Ru bond, proof of zerovalent nanoparticles, but the existence of Ru-O and Ru-Cl bonds, and thus the formation of a water-soluble complex. The EXAFS (extended X-ray absorption fine structure) spectra revealed the presence of an oxygen-bridged diruthenium complex [Ru(OH) xCl3- x]2(μ-O) with a high oxidation state in agreement with catalytic results. This study constitutes a significant advance to determine the true nature of the RuCl3·3H2O salt in water and proves once again the invasive nature of the electron beam in microscopy experiments, routinely used in nanochemistry.
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Affiliation(s)
- Anastasia Lebedeva
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 , Université de Rennes , F-35000 Rennes , France
| | - Brunno L Albuquerque
- LaCBio, Laboratory of Biomimetic Catalysis, Chemistry Department , Universidade Federal de Santa Catarina , Campus Trindade , Florianópolis 88040-900 , Santa Catarina Brazil.,LAMOCA, Laboratory of Molecular Catalysis, Chemistry Institute , Universidade Federal do Rio Grande do Sul , Campus do Vale , Porto Alegre 91501-970 , Rio Grande do Su , Brazil
| | - Josiel B Domingos
- LaCBio, Laboratory of Biomimetic Catalysis, Chemistry Department , Universidade Federal de Santa Catarina , Campus Trindade , Florianópolis 88040-900 , Santa Catarina Brazil
| | - Jean-François Lamonier
- UMR 8181, Unité de Catalyse et Chimie du Solide (UCCS), CNRS, Centrale Lille, ENSCL , Université de Lille and Université D'Artois , Lille , 59000 , France
| | - Jean-Marc Giraudon
- UMR 8181, Unité de Catalyse et Chimie du Solide (UCCS), CNRS, Centrale Lille, ENSCL , Université de Lille and Université D'Artois , Lille , 59000 , France
| | - Pierre Lecante
- Centre d'Elaboration des Matériaux et d'Etudes Structurales du CNRS , 9 Rue Marvig, BP 4347 , Toulouse Cedex 31055 , France
| | - Audrey Denicourt-Nowicki
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 , Université de Rennes , F-35000 Rennes , France
| | - Alain Roucoux
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 , Université de Rennes , F-35000 Rennes , France
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21
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An Y, Yu J, Han Y. Recent Advances in the Chemistry of
N
‐Heterocyclic‐Carbene‐Functionalized Metal‐Nanoparticles and Their Applications. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800450] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yuan‐Yuan An
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 China
| | - Jian‐Gang Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 China
- College of Chemical and Material Engineering, Quzhou University Quzhou, Zhejiang 324000 China
| | - Ying‐Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
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22
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Fernández G, Pleixats R. Soluble Pt Nanoparticles Stabilized by a Tris-imidazolium Tetrafluoroborate as Efficient and Recyclable Catalyst for the Stereoselective Hydrosilylation of Alkynes. ChemistrySelect 2018. [DOI: 10.1002/slct.201802785] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Guillem Fernández
- Department of Chemistry and Centro de Innovación en Química Avanzada (CINQA); Universitat Autònoma de Barcelona, 08193-Cerdanyola del Vallès; Barcelona, Spain
| | - Roser Pleixats
- Department of Chemistry and Centro de Innovación en Química Avanzada (CINQA); Universitat Autònoma de Barcelona, 08193-Cerdanyola del Vallès; Barcelona, Spain
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23
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Cao Z, Derrick JS, Xu J, Gao R, Gong M, Nichols EM, Smith PT, Liu X, Wen X, Copéret C, Chang CJ. Chelating N‐Heterocyclic Carbene Ligands Enable Tuning of Electrocatalytic CO
2
Reduction to Formate and Carbon Monoxide: Surface Organometallic Chemistry. Angew Chem Int Ed Engl 2018; 57:4981-4985. [DOI: 10.1002/anie.201800367] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 02/27/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Zhi Cao
- Department of Chemistry University of California Berkeley CA 94720 USA
| | - Jeffrey S. Derrick
- Department of Chemistry University of California Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Jun Xu
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 1–5 8093 Zürich Switzerland
| | - Rui Gao
- Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan Shanxi 030001 China
- Synfuels China Beijing 100195 China
| | - Ming Gong
- Department of Chemistry University of California Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Eva M. Nichols
- Department of Chemistry University of California Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Peter T. Smith
- Department of Chemistry University of California Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Xingwu Liu
- Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan Shanxi 030001 China
- Synfuels China Beijing 100195 China
| | - Xiaodong Wen
- Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan Shanxi 030001 China
- Synfuels China Beijing 100195 China
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 1–5 8093 Zürich Switzerland
| | - Christopher J. Chang
- Department of Chemistry University of California Berkeley CA 94720 USA
- Department of Molecular and Cell Biology Howard Hughes Medical Institute University of California Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
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24
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Cao Z, Derrick JS, Xu J, Gao R, Gong M, Nichols EM, Smith PT, Liu X, Wen X, Copéret C, Chang CJ. Chelating N‐Heterocyclic Carbene Ligands Enable Tuning of Electrocatalytic CO
2
Reduction to Formate and Carbon Monoxide: Surface Organometallic Chemistry. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800367] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Zhi Cao
- Department of Chemistry University of California Berkeley CA 94720 USA
| | - Jeffrey S. Derrick
- Department of Chemistry University of California Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Jun Xu
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 1–5 8093 Zürich Switzerland
| | - Rui Gao
- Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan Shanxi 030001 China
- Synfuels China Beijing 100195 China
| | - Ming Gong
- Department of Chemistry University of California Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Eva M. Nichols
- Department of Chemistry University of California Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Peter T. Smith
- Department of Chemistry University of California Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Xingwu Liu
- Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan Shanxi 030001 China
- Synfuels China Beijing 100195 China
| | - Xiaodong Wen
- Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan Shanxi 030001 China
- Synfuels China Beijing 100195 China
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 1–5 8093 Zürich Switzerland
| | - Christopher J. Chang
- Department of Chemistry University of California Berkeley CA 94720 USA
- Department of Molecular and Cell Biology Howard Hughes Medical Institute University of California Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
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25
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Martínez-Prieto LM, Chaudret B. Organometallic Ruthenium Nanoparticles: Synthesis, Surface Chemistry, and Insights into Ligand Coordination. Acc Chem Res 2018; 51:376-384. [PMID: 29308876 DOI: 10.1021/acs.accounts.7b00378] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Although there has been for the past 20 years great interest in the synthesis and use of metal nanoparticles, little attention has been paid to the complexity of the surface of these species. In particular, the different aspects concerning the ligands present, their location, their mode of binding, and their dynamics have been little studied. Our group has started in the early 1990s an investigation of the surface coordination chemistry of ruthenium and platinum nanoparticles but at that time with a lack of adequate techniques to fulfill our ambition. Over 10 years later, we went back to this problem and could obtain a more precise vision of the surface species. This Account is centered on ruthenium chemistry. This metal has been the most studied in our group, first thanks to the availability of a precursor, Ru(cyclooctadiene)(cyclooctatriene) (Ru(COD)(COT)), which possesses the ability to decompose in very mild conditions without leaving residues on the resulting nanoparticles and second because of the absence of magnetic perturbations (Knight shift, paramagnetism, ferromagnetism, etc.), which has allowed the use of solution and solid state NMR. In this respect, it has been possible to evidence the presence of a high concentration of hydrides on the surface of these particles, to study their dynamics, and to show that since the polarity of the Ru-H bond is similar to that of the C-H bond, a Ru/H NP would behave as a big lipophilic entity. The second point was to characterize the coordination of ancillary ligands. This has been achieved for different ligands, in particular phosphines and carbenes, which made possible the study of the modification of NP reactivity induced by surface ligands. This led to the conclusion that the presence of surface ligands can benefit both the activity of NP catalysts and their selectivity. If it was expected that the selectivity could be modulated, the promoting effect from the presence of ligands on, for example, arene or CO hydrogenation was totally unexpected. Playing with poison atoms (Sn, Fe, etc.) or ligands (CO) may allow us to play with the reactivity of the NPs to make them more selective for selected reactions. Finally, the search for specific ligands for nanoparticles is still in its infancy, but some examples have been found as have specific reactions of nanoparticles. Obviously arene hydrogenation and CO hydrogenation were well-known in heterogeneous catalysis, but we could demonstrate that they can be carried out in very mild conditions on ligand stabilized RuNPs. On the other hand, the enantiospecific C-H activation leading to enantioselective labeling of large organic or biomolecules or the C-C bond cleavage in mild conditions were both unexpected. There is still much work to perform for reaching the degree of control on nanoparticles that is presently achieved in organometallic molecular chemistry, but this work shows that it is possible.
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Affiliation(s)
- Luis M. Martínez-Prieto
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135, Avenue de Rangueil, 31077 Toulouse, France
| | - Bruno Chaudret
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135, Avenue de Rangueil, 31077 Toulouse, France
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26
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Klauke K, Gruber I, Knedel TO, Schmolke L, Barthel J, Breitzke H, Buntkowsky G, Janiak C. Silver, Gold, Palladium, and Platinum N-heterocyclic Carbene Complexes Containing a Selenoether-Functionalized Imidazol-2-ylidene Moiety. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00678] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Karsten Klauke
- Institut
für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Irina Gruber
- Institut
für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Tim-Oliver Knedel
- Institut
für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Laura Schmolke
- Institut
für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Juri Barthel
- Gemeinschaftslabor für Elektronenmikroskopie RWTH-Aachen, Ernst-Ruska-Centrum für Mikroskopie und Spektroskopie mit
Elektronen, D-52425 Jülich, Germany
| | - Hergen Breitzke
- Eduard-Zintl-Institut
für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Straße 4, D-64287 Darmstadt, Germany
| | - Gerd Buntkowsky
- Eduard-Zintl-Institut
für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Straße 4, D-64287 Darmstadt, Germany
| | - Christoph Janiak
- Institut
für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany
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27
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Baquero EA, Tricard S, Coppel Y, Flores JC, Chaudret B, de Jesús E. Water-soluble platinum nanoparticles stabilized by sulfonated N-heterocyclic carbenes: influence of the synthetic approach. Dalton Trans 2018; 47:4093-4104. [DOI: 10.1039/c8dt00240a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
On the surface: Pt nanoparticles with NHC ligands at the surface have been prepared in water using different organometallic approaches.
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Affiliation(s)
- Edwin A. Baquero
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación Química “Andrés M. del Río” (IQAR)
- Universidad de Alcalá
- Campus Universitario
- Madrid
| | - Simon Tricard
- Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences appliquées
- 31077 Toulouse
- France
| | - Yannick Coppel
- Laboratoire de Chimie de Coordination
- CNRS
- Université de Toulouse
- 31077 Toulouse
- France
| | - Juan C. Flores
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación Química “Andrés M. del Río” (IQAR)
- Universidad de Alcalá
- Campus Universitario
- Madrid
| | - Bruno Chaudret
- Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences appliquées
- 31077 Toulouse
- France
| | - Ernesto de Jesús
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación Química “Andrés M. del Río” (IQAR)
- Universidad de Alcalá
- Campus Universitario
- Madrid
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28
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Rakers L, Martínez-Prieto LM, López-Vinasco AM, Philippot K, van Leeuwen PWNM, Chaudret B, Glorius F. Ruthenium nanoparticles ligated by cholesterol-derived NHCs and their application in the hydrogenation of arenes. Chem Commun (Camb) 2018; 54:7070-7073. [DOI: 10.1039/c8cc02833h] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we present ruthenium nanoparticles (Ru-NPs) stabilized with two rigid NHC ligands derived from cholesterol.
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Affiliation(s)
- Lena Rakers
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Luis M. Martínez-Prieto
- LPCNO
- Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences Appliquées
- F-31077 Toulouse
| | - Angela M. López-Vinasco
- LPCNO
- Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences Appliquées
- F-31077 Toulouse
| | | | - Piet W. N. M. van Leeuwen
- LPCNO
- Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences Appliquées
- F-31077 Toulouse
| | - Bruno Chaudret
- LPCNO
- Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences Appliquées
- F-31077 Toulouse
| | - Frank Glorius
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
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29
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Rossi LM, Fiorio JL, Garcia MAS, Ferraz CP. The role and fate of capping ligands in colloidally prepared metal nanoparticle catalysts. Dalton Trans 2018; 47:5889-5915. [DOI: 10.1039/c7dt04728b] [Citation(s) in RCA: 169] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this Perspective article, we highlight emerging opportunities for the rational design of catalysts upon the choice, exchange, partial removal or pyrolysis of ligands.
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Affiliation(s)
- Liane M. Rossi
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
| | - Jhonatan L. Fiorio
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
| | - Marco A. S. Garcia
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
| | - Camila P. Ferraz
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
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