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Rodríguez-Gobernado A, Blasco D, Monge M, López-de-Luzuriaga JM. Spontaneous Water-Promoted Self-Aggregation of a Hydrophilic Gold(I) Complex Due to Ligand Sphere Rearrangement. Molecules 2023; 28:5680. [PMID: 37570650 PMCID: PMC10420115 DOI: 10.3390/molecules28155680] [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: 07/06/2023] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
Aggregating gold(I) complexes in solution through short aurophilic contacts promotes new photoluminescent deactivation pathways (aggregation-induced emission, AIE). The time dependence of spontaneous AIE is seldom studied. We examine the behavior of complex [Au(N9-hypoxanthinate)(PTA)] (1) in an aqueous solution with the aid of variable-temperature NMR, time-resolved UV-Vis and photoluminescence spectroscopy, and PGSE NMR. The studies suggest that partial ligand scrambling in favor of the ionic [Au(PTA)2][Au(N9-hypoxanthinate)2] pair followed by anion oligomerization takes place. The results are rationalized with the aid of computational calculations at the TD-DFT level of theory and IRI analysis of the electron density.
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Affiliation(s)
| | - Daniel Blasco
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja, Madre de Dios 53, 26006 Logroño, Spain;
| | - Miguel Monge
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja, Madre de Dios 53, 26006 Logroño, Spain;
| | - José M. López-de-Luzuriaga
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja, Madre de Dios 53, 26006 Logroño, Spain;
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2
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Singh A, Singh N, Kaur N, Jang DO. Gold nanoparticles supported on ionic‐liquid‐functionalized cellulose (Au@CIL): a heterogeneous catalyst for the selective reduction of aromatic nitro compounds. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Anoop Singh
- Department of Chemistry Indian Institute of Technology Ropar Punjab India
| | - Narinder Singh
- Department of Chemistry Indian Institute of Technology Ropar Punjab India
| | - Navneet Kaur
- Department of Chemistry Panjab University Chandigarh India
| | - Doo Ok Jang
- Department of Chemistry Yonsei University Wonju Korea
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3
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Blasco D, Rodríguez-Castillo M, Olmos ME, Monge M, López-de-Luzuriaga JM. Spontaneous in situ generation of photoemissive aurophilic oligomers in water solution based on the 2-thiocytosine ligand. RSC Adv 2022; 12:8466-8473. [PMID: 35424821 PMCID: PMC8984931 DOI: 10.1039/d2ra00368f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 03/08/2022] [Indexed: 11/24/2022] Open
Abstract
Complexes [Au(S-2-thiocytosinate)(PMe3)] (2, 2-thiocytosine = 4-amino-2-mercaptopyrimidine) and [Au(S-2-thiocytosine)(PMe3)](CF3CO2) (3) have been prepared by the reaction of [Au(acac)(PMe3)] (1, acac = acetylacetonate) or [Au(OCOCF3)(PMe3)] with 2-thiocytosine, respectively. The equimolecular mixture of complexes 1 and 3 also produces [{Au(PMe3)}2(μ-S,N1-2-thiocytosinate)](CF3CO2) (4), which features two distinct [Au(PMe3)]+ groups coordinated to the S and N1 atoms of the heterocycle. Complex 4 experiences a ligand redistribution process in water solution that liberates [Au(PMe3)2](CF3CO2) and a brightly coloured and luminescent species of [Aun(μ-S,N1-2-thiocytosinate)n] stoichiometry, presumably as a tetraauracycle (n = 4). The doubly-aurated [{Au(PMe3)}2(μ-S,N1-2-thiocytosinate)]+ cation breaks up in water solution to form a strongly-coloured and photoluminescent neutral aurophilic oligomer.![]()
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Affiliation(s)
- Daniel Blasco
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja Madre de Dios 53 26006 Logroño Spain
| | - María Rodríguez-Castillo
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja Madre de Dios 53 26006 Logroño Spain
| | - M Elena Olmos
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja Madre de Dios 53 26006 Logroño Spain
| | - Miguel Monge
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja Madre de Dios 53 26006 Logroño Spain
| | - José M López-de-Luzuriaga
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja Madre de Dios 53 26006 Logroño Spain
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4
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Recent Progress on Supramolecular Luminescent Assemblies Based on Aurophilic Interactions in Solution. INORGANICS 2021. [DOI: 10.3390/inorganics9050032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The development of supramolecular systems showing aurophilic interactions in solution is gaining much attention in the last years. This is due to the intriguing photophysical properties of gold(I) complexes, which usually confer to these supramolecular assemblies interesting luminescent properties, as well as the possibility of morphological modulation, through fine tuning of inter- and intramolecular aurophilic interactions, in synergy with the formation of other supramolecular contacts. In this work, an overview of the advances made in this area since 2015 is presented. A large variety of systems showing different spectroscopical and structural topologies has been reported. Moreover, these supramolecular assemblies have proven to be useful in a wide range of applications.
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5
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Blasco D, López-de-Luzuriaga JM, Monge M, Olmos ME, Pascual D, Rodríguez-Castillo M. Time-Dependent Molecular Rearrangement of [Au( N9-adeninate)(PTA)] in Aqueous Solution and Aggregation-Induced Emission in a Hydrogel Matrix. Inorg Chem 2021; 60:3667-3676. [PMID: 33635632 DOI: 10.1021/acs.inorgchem.0c03291] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An in-depth study of the molecular rearrangement of the complex [Au(N9-adeninate)(PTA)] (1), promoted in aqueous solution, is presented. This complex, which has been previously described as forming dimers in its crystalline form, is also demonstrated as being able to assemble into an infinite AuI···AuI chain polymer. The structural motifs are tentatively related to the dramatic modification of the photoemissive properties of 1 in water solution at long times, with the aid of UV-vis and photoluminescence measurements, PGSE-NMR, and theoretical calculations. A subtle equilibrium in favor of aurophilically governed aggregates has been envisaged as the driving force of the molecular rearrangement. Furthermore, 1 has been explored as an additive of the hydrogel of [Au(N9-adeninate)(PMe3)] (2) for a further tuning of its photophysical properties without loss of the gel texture.
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Affiliation(s)
- Daniel Blasco
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química (CISQ), Complejo Científico Tecnológico, 26004 Logroño, Spain
| | - José M López-de-Luzuriaga
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química (CISQ), Complejo Científico Tecnológico, 26004 Logroño, Spain
| | - Miguel Monge
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química (CISQ), Complejo Científico Tecnológico, 26004 Logroño, Spain
| | - M Elena Olmos
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química (CISQ), Complejo Científico Tecnológico, 26004 Logroño, Spain
| | - David Pascual
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química (CISQ), Complejo Científico Tecnológico, 26004 Logroño, Spain
| | - María Rodríguez-Castillo
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química (CISQ), Complejo Científico Tecnológico, 26004 Logroño, Spain
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6
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Sarkar S, Ghosh SR, Brandão P, Jana AD. Role of imidazole edge to edge supramolecular interaction in the crystal packing of Cu(II)(SCN−)2(imidazole)2 complex: A novel variety of supramolecular interaction revealed by CCDC database analysis and explored through DFT computational studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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7
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Abstract
Gold phosphine derivatives such as thiolates have been recently proposed as catalysts or catalyst precursors. The relevance of the supramolecular environment on the fine-tuning of the catalytical activity on these compounds incentivizes the use of tools that are convenient to characterize in detail the non-covalent landscape of the systems. Herein, we show the molecular and supramolecular diversity caused by the changes in the fluorination pattern in a family of new XPhos goldfluorothiolate derivatives. Furthermore, we studied the supramolecular interactions around the Au centers using quantum chemical topology tools, in particular the quantum theory of atoms in molecules (QTAIM) and the non-covalent interaction index. Our results give detailed insights into the fluorination effects on the strength of intramolecular and intermolecular interactions in these systems. We have also used QTAIM delocalization indexes to define a novel hapticity indicator. Finally, we assessed the trans influence of the fluorothiolates on the phosphine in terms of the change in the δ 31P-NMR. These results show the feasibility of the use of fluorination in the modulation of the electronic properties of Buchwald phosphine gold(I) compounds, and thereby its potential catalytic activity.
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8
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Blasco D, López-de-Luzuriaga JM, Monge M, Olmos ME, Rodríguez-Castillo M, Amaveda H, Mora M, García Sakai V, Martínez-González JA. Multidisciplinary study on the hydrogelation of the digold( i) complex [{Au( 9N-adeninate)} 2(μ-dmpe)]: optical, rheological, and quasi-elastic neutron scattering perspectives. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00586c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Non-conventional experimental techniques such as rheology or QENS will aid synthetic inorganic chemists to broaden the knowledge on gold(i) hydrometallogels’ structure and properties and to understand their expected relationship.
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Affiliation(s)
- Daniel Blasco
- Departamento de Química
- Centro de Investigación en Síntesis Química (CISQ)
- Universidad de La Rioja
- 26004 Logroño
- Spain
| | - José M. López-de-Luzuriaga
- Departamento de Química
- Centro de Investigación en Síntesis Química (CISQ)
- Universidad de La Rioja
- 26004 Logroño
- Spain
| | - Miguel Monge
- Departamento de Química
- Centro de Investigación en Síntesis Química (CISQ)
- Universidad de La Rioja
- 26004 Logroño
- Spain
| | - M. Elena Olmos
- Departamento de Química
- Centro de Investigación en Síntesis Química (CISQ)
- Universidad de La Rioja
- 26004 Logroño
- Spain
| | - María Rodríguez-Castillo
- Departamento de Química
- Centro de Investigación en Síntesis Química (CISQ)
- Universidad de La Rioja
- 26004 Logroño
- Spain
| | - Hippolyte Amaveda
- Instituto de Nanociencia y Materiales de Aragón
- INMA (CSIC-Universidad de Zaragoza)
- 50018 Zaragoza
- Spain
| | - Mario Mora
- Instituto de Nanociencia y Materiales de Aragón
- INMA (CSIC-Universidad de Zaragoza)
- 50018 Zaragoza
- Spain
| | - Victoria García Sakai
- ISIS Neutron and Muon Source
- Rutherford Appleton Laboratory (RAL)
- Harwell Science and Innovation Campus
- Didcot
- UK
| | - José A. Martínez-González
- ISIS Neutron and Muon Source
- Rutherford Appleton Laboratory (RAL)
- Harwell Science and Innovation Campus
- Didcot
- UK
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9
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Mirzadeh N, Privér SH, Blake AJ, Schmidbaur H, Bhargava SK. Innovative Molecular Design Strategies in Materials Science Following the Aurophilicity Concept. Chem Rev 2020; 120:7551-7591. [DOI: 10.1021/acs.chemrev.9b00816] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Nedaossadat Mirzadeh
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, GPO BOX 2476, Melbourne 3001, Australia
| | - Steven H. Privér
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, GPO BOX 2476, Melbourne 3001, Australia
| | - Alexander J. Blake
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, U.K
| | - Hubert Schmidbaur
- Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, D-85747 Garching, Germany
| | - Suresh K. Bhargava
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, GPO BOX 2476, Melbourne 3001, Australia
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10
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Moreno-Alcántar G, Turcio-García L, Guevara-Vela JM, Romero-Montalvo E, Rocha-Rinza T, Pendás ÁM, Flores-Álamo M, Torrens H. Directing the Crystal Packing in Triphenylphosphine Gold(I) Thiolates by Ligand Fluorination. Inorg Chem 2020; 59:8667-8677. [PMID: 32551606 DOI: 10.1021/acs.inorgchem.9b03131] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We explore herein the supramolecular interactions that control the crystalline packing in a series of fluorothiolate triphenylphosphine gold(I) compounds with the general formula [Au(SRF)(Ph3P)] in which Ph3P = triphenylphosphine and SRF = SC6F5, SC6HF4-4, SC6F4(CF3)-4, SC6H3F2-2,4, SC6H3F2-3,4, SC6H3F2-3,5, SC6H4(CF3)-2, SC6H4F-2, SC6H4F-3, SC6H4F-4, SCF3, and SCH2CF3. We use for this purpose (i) DFT electronic structure calculations and (ii) the quantum theory of atoms in molecules and the non-covalent interactions index methods of wave function analyses. Our combined experimental and computational approach yields a general understanding of the effects of ligand fluorination in the crystalline self-assembly of the examined systems, in particular, about the relative force of aurophilic contacts compared with other supramolecular interactions. We expect this information to be useful in the design of materials based on gold coordination compounds.
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Affiliation(s)
- Guillermo Moreno-Alcántar
- School of Chemistry, National Autonomous University of Mexico, Circuito Escolar, Ciudad Universitaria, Coyoacán, 04510 Mexico City, Mexico.,Institut de Science et d' Ingénierie Supramoléculaires (ISIS), University of Strasbourg, 8 alleé Gaspard Monge, 67000, Strasbourg, France
| | - Luis Turcio-García
- School of Chemistry, National Autonomous University of Mexico, Circuito Escolar, Ciudad Universitaria, Coyoacán, 04510 Mexico City, Mexico
| | - José M Guevara-Vela
- Institute of Chemistry, National Autonomous University of Mexico, Circuito Exterior, Ciudad Universitaria, Coyoacán, 04510, Mexico City, Mexico
| | - Eduardo Romero-Montalvo
- Institute of Chemistry, National Autonomous University of Mexico, Circuito Exterior, Ciudad Universitaria, Coyoacán, 04510, Mexico City, Mexico
| | - Tomás Rocha-Rinza
- Institute of Chemistry, National Autonomous University of Mexico, Circuito Exterior, Ciudad Universitaria, Coyoacán, 04510, Mexico City, Mexico
| | - Ángel Martín Pendás
- Department of Analytical and Physical Chemistry, University of Oviedo, E-33006, Julián Clavería, 8, 33006, Oviedo, Spain
| | - Marcos Flores-Álamo
- School of Chemistry, National Autonomous University of Mexico, Circuito Escolar, Ciudad Universitaria, Coyoacán, 04510 Mexico City, Mexico
| | - Hugo Torrens
- School of Chemistry, National Autonomous University of Mexico, Circuito Escolar, Ciudad Universitaria, Coyoacán, 04510 Mexico City, Mexico
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11
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Ma YY, Yu YQ, Cheng LJ. Electronic stability of bimetallic Au2@Cu6 nanocluster: Closed-shell interaction and multicenter bonding. CHINESE J CHEM PHYS 2020. [DOI: 10.1063/1674-0068/cjcp1912200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ying-ying Ma
- Department of Chemistry, Anhui University, Hefei 230601, China
| | - Yuan-qin Yu
- School of Physics and Materials Science, Anhui University, Hefei 230601, China
| | - Long-jiu Cheng
- Department of Chemistry, Anhui University, Hefei 230601, China
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China
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12
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Exploring the Self-Assembled Tacticity in Aurophilic Polymeric Arrangements of Diphosphanegold(I) Fluorothiolates. Molecules 2019; 24:molecules24234422. [PMID: 31817055 PMCID: PMC6930485 DOI: 10.3390/molecules24234422] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/24/2019] [Accepted: 12/02/2019] [Indexed: 11/25/2022] Open
Abstract
Despite the recurrence of aurophilic interactions in the solid-state structures of gold(I) compounds, its rational control, modulation, and application in the generation of functional supramolecular structures is an area that requires further development. The ligand effects over the aurophilic-based supramolecular structures need to be better understood. This paper presents the supramolecular structural diversity of a series of new 1,3-bis(diphenylphosphane)propane (dppp) gold(I) fluorinated thiolates with the general formula [Au2(SRF)2(μ-dppp)] (SRF = SC6F5 (1); SC6HF4-4 (2); SC6H3(CF3)2-3,5 (3); SC6H4CF3-2 (4); SC6H4CF3-4 (5); SC6H3F2-3,4 (6); SC6H3F2-3,5 (7); SC6H4F-2 (8); SC6H4F-3 (9); SC6H4F-4 (10)). These compounds were synthesized and characterized, and six of their solid-state crystalline structures were determined using single-crystal X-ray diffraction. In the crystalline arrangement, they form aurophilic-bridged polymers. In these systems, the changes in the fluorination patterns of the thiolate ligands tune the aurophilic-induced self-assembly of the compounds causing tacticity and chiral differentiation of the monomers. This is an example of the use of ligand effects on the tune of the supramolecular association of gold complexes.
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13
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Moro AJ, Avó J, Malfois M, Zaccaria F, Fonseca Guerra C, Caparrós FJ, Rodríguez L, Lima JC. Aggregation induced emission of a new naphthyridine-ethynyl-gold(i) complex as a potential tool for sensing guanosine nucleotides in aqueous media. Dalton Trans 2019; 49:171-178. [PMID: 31793589 DOI: 10.1039/c9dt04162a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A new organometallic alkynyl-gold(i) complex capable of exhibiting aggregation induced emission was designed and synthesized. The linear complex structure possesses a central Au(i) atom, bearing two axial ligands: (1) 1,3,5-triaza-7-phosphaadamantane and (2) 2-acetamido-7-ethynyl-1,8-naphthyridine. While the former accounts for its partial solubility in an aqueous environment, the latter acts as a receptor unit for binding guanosine nucleotides and derivatives via multiple hydrogen bonding interactions. At high concentrations, aggregation of the complex was observed by the formation of new absorption (λmax∼ 400 nm) and emission bands (550-700 nm). Formation of aggregates of ca. 60 nm diameter was confirmed by Small Angle X-ray Scattering (SAXS). Disruption of the aggregates in the presence of guanosine derivatives resulted in a ratiometric signal with apparent association constants in the order of 105 M-1 and high sensitivity (around 63% signal change) which are, to the best of our knowledge, in line with the highest values recorded for nucleotide sensors based on hydrogen bonding and capable of working in water. Computational studies indicate the presence of additional hydrogen bonding interactions that account for the strong binding of the Au(i) complex to phosphorylated guanosine nucleotides.
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Affiliation(s)
- Artur J Moro
- LAQV-REQUIMTE, Departamento de Química, CQFB, Universidade Nova de Lisboa, Monte de Caparica, Portugal.
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14
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Blasco D, López-de-Luzuriaga JM, Monge M, Olmos ME, Rodríguez-Castillo M. Balancing ionic and H-bonding interactions for the formation of Au(i) hydrometallogels. Dalton Trans 2019; 48:7519-7526. [DOI: 10.1039/c9dt01154d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Complex [Au(9N-adenine)(PMe3)](CF3CO2) displays a supramolecular structure built up through ionic, π-stacking, C–H⋯O, C–H⋯N and C–H⋯Au interactions. This complex forms a stable hydrometallogel consisting of straight molecular nanowires.
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Affiliation(s)
- Daniel Blasco
- Departamento de Química
- Universidad de La Rioja
- Centro de Investigación en Síntesis Química (CISQ)
- Complejo Científico Tecnológico
- 26004 Logroño
| | - José M. López-de-Luzuriaga
- Departamento de Química
- Universidad de La Rioja
- Centro de Investigación en Síntesis Química (CISQ)
- Complejo Científico Tecnológico
- 26004 Logroño
| | - Miguel Monge
- Departamento de Química
- Universidad de La Rioja
- Centro de Investigación en Síntesis Química (CISQ)
- Complejo Científico Tecnológico
- 26004 Logroño
| | - M. Elena Olmos
- Departamento de Química
- Universidad de La Rioja
- Centro de Investigación en Síntesis Química (CISQ)
- Complejo Científico Tecnológico
- 26004 Logroño
| | - María Rodríguez-Castillo
- Departamento de Química
- Universidad de La Rioja
- Centro de Investigación en Síntesis Química (CISQ)
- Complejo Científico Tecnológico
- 26004 Logroño
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