1
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Daniel L, Karam A, Franco CHJ, Conde C, Sacramento de Morais A, Mosnier J, Fonta I, Villarreal W, Pradines B, Moreira DRM, Navarro M. Metal(triphenylphosphine)-atovaquone Complexes: Synthesis, Antimalarial Activity, and Suppression of Heme Detoxification. Inorg Chem 2024. [PMID: 39185932 DOI: 10.1021/acs.inorgchem.4c02751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
To ascertain the bioinorganic chemistry of metals conjugated with quinones, the complexes [Ag(ATV)(PPh3)2] (1), [Au(ATV)(PPh3)]·2H2O (2), and [Cu(ATV)(PPh3)2] (3) were synthesized by the coordination of the antimalarial naphthoquinone atovaquone (ATV) to the starting materials [Ag(PPh3)2]NO3, [Au(PPh3)Cl], and [Cu(PPh3)2NO3], respectively. These complexes were characterized by analytical and spectroscopical techniques. X-ray diffraction of single crystals precisely confirmed the coordination mode of ATV to the metals, which was monodentate or bidentate, depending on the metal center. Both coordination modes showed high stability in the solid state and in solution. All three complexes showed negative log D values at pH 5, but at pH 7.4, while complex 2 continued to have a negative log D value, complexes 1 and 3 displayed positive values, indicating a more hydrophilic character. ATV and complexes 1-3 could bind to ferriprotoporphyrin IX (FePPIX); however, only complexes 1-3 could inhibit β-hematin crystal formation. Phenotype-based activity revealed that all three metal complexes are able to inhibit the growth of P. falciparum with potency and selectivity comparable to those of ATV, while the starting materials lack this activity. The outcomes of this chemical design may provide significant insights into structure-activity relationships for the development of new antimalarial agents.
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Affiliation(s)
- Luana Daniel
- Laboratório de Química Bioinorgânica e Catalise, Departamento Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - Arquímedes Karam
- Laboratório de Química Bioinorgânica e Catalise, Departamento Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - Chris Hebert J Franco
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, 1049-001, Portugal
| | - Camila Conde
- Laboratório de Química Bioinorgânica e Catalise, Departamento Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | | | - Joel Mosnier
- Unité Parasitologie et Entomologie, Institut de Recherche Biomédicale des Armées, Marseille, 13005, France
- Aix-Marseille Univ, SSA, AP-HM, RITMES, Marseille, 13005, France
- IHU Méditerranée Infection, 19-21 Boulevard Jean Moulin, Marseille, 13005, France
- Centre National de Référence du Paludisme, Marseille, 13005, France
| | - Isabelle Fonta
- Unité Parasitologie et Entomologie, Institut de Recherche Biomédicale des Armées, Marseille, 13005, France
- Aix-Marseille Univ, SSA, AP-HM, RITMES, Marseille, 13005, France
- IHU Méditerranée Infection, 19-21 Boulevard Jean Moulin, Marseille, 13005, France
- Centre National de Référence du Paludisme, Marseille, 13005, France
| | - Wilmer Villarreal
- Grupo de Química Inorgânica Medicinal e Reações Aplicadas, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91501-970, Brazil
| | - Bruno Pradines
- Unité Parasitologie et Entomologie, Institut de Recherche Biomédicale des Armées, Marseille, 13005, France
- Aix-Marseille Univ, SSA, AP-HM, RITMES, Marseille, 13005, France
- IHU Méditerranée Infection, 19-21 Boulevard Jean Moulin, Marseille, 13005, France
- Centre National de Référence du Paludisme, Marseille, 13005, France
| | | | - Maribel Navarro
- Laboratório de Química Bioinorgânica e Catalise, Departamento Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais 36036-900, Brazil
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2
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Takahashi S, Murai M, Hattori Y, Seki S, Yanai T, Yamaguchi S. Sulfur-Bridged Cationic Diazulenomethenes: Formation of Charge-Segregated Assembly with High Charge-Carrier Mobility. J Am Chem Soc 2024; 146:22642-22649. [PMID: 39092507 DOI: 10.1021/jacs.4c07122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
Sulfur-bridged cationic diazulenomethenes were synthesized and exhibited high stability even under basic conditions due to the delocalization of positive charge over the whole π-conjugated skeleton. As a result of the effective delocalization and the absence of orthogonally oriented bulky substituents, the cationic π-conjugated skeletons formed a π-stacked array with short interfacial distances. A derivative with SbF6- as a counter anion formed a charge-segregated assembly in the crystalline state, rather than the generally favored charge-by-charge arrangement of oppositely charged species based on electrostatic interactions. Theoretical calculations suggested that the destabilization caused by electrostatic repulsion between two positively charged π-conjugated skeletons is compensated by the dispersion forces. In addition, the counter anion SbF6- played a role in regulating the molecular alignment through F⋯H-C and F-S interactions, which resulted in the charge-segregated alignment of the cationic π-skeletons. This characteristic assembled structure gave rise to a high charge-carrier mobility of 1.7 cm2 V-1 s-1 as determined using flash-photolysis time-resolved microwave conductivity.
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Affiliation(s)
- Satoshi Takahashi
- Department of Chemistry, Graduate School of Science, and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
| | - Masahito Murai
- Department of Chemistry, Graduate School of Science, and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
| | - Yusuke Hattori
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shu Seki
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takeshi Yanai
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8601, Japan
| | - Shigehiro Yamaguchi
- Department of Chemistry, Graduate School of Science, and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8601, Japan
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3
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Shimajiri T, Tsue T, Koakutsu S, Ishigaki Y, Suzuki T. Crystallographic and spectroscopic studies on persistent triarylpropargyl cations. Chem Commun (Camb) 2024; 60:7152-7155. [PMID: 38836338 DOI: 10.1039/d4cc01786b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
By acid treatment of precursor alcohols, mesitylethynyl-substituted diarylmethyl cations were isolated as stable solids, X-ray structural analyses of which revealed a planar geometry. Furthermore, the ion pairs including these triarylpropargyl cations form charge-segregated assemblies in the crystal, and effective intermolecular interaction induces a red-shift of absorption in the crystal.
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Affiliation(s)
- Takuya Shimajiri
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.
- Creative Research Institution, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Taiga Tsue
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.
| | - Shumpei Koakutsu
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.
| | - Yusuke Ishigaki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.
| | - Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.
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4
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Karpiuk TE, Mahato S, Storr T, Leznoff DB. Unusually short unsupported Au(III)⋯Au(III) aurophilic contacts in emissive lanthanide tetracyanoaurate(III) complexes. Chem Commun (Camb) 2024; 60:3914-3917. [PMID: 38502135 DOI: 10.1039/d4cc00468j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
A series of [Au(CN)4]- salts with lanthanide 2,2'-bipyridine dioxide cations features Au(III) aurophilic interactions between [Au(CN)4]- groups, with Au⋯Au distances of 3.3603(4) Å and 3.4354(4) Å that are shorter than any previously reported. Computations predict the interactions to be weakly attractive; packing effects appear to also contribute to the close contacts. The materials are emissive: there is no Au(III)-based luminescence, but for Ln = Eu the PLQY of 29% is surprisingly high compared to related analogues.
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Affiliation(s)
- Thomas E Karpiuk
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, V5A 1S6, Canada.
| | - Samyadeb Mahato
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, V5A 1S6, Canada.
| | - Tim Storr
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, V5A 1S6, Canada.
| | - Daniel B Leznoff
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, V5A 1S6, Canada.
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5
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Haketa Y, Yamasumi K, Maeda H. π-Electronic ion pairs: building blocks for supramolecular nanoarchitectonics viaiπ- iπ interactions. Chem Soc Rev 2023; 52:7170-7196. [PMID: 37795542 DOI: 10.1039/d3cs00581j] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
The pairing of charged π-electronic systems and their ordered arrangement have been achieved by iπ-iπ interactions that are derived from synergetically worked electrostatic and dispersion forces. Charged π-electronic systems that provide ion pairs as building blocks for assemblies have been prepared by diverse strategies for introducing charge in the core π-electronic systems. One method to prepare charged π-electronic systems is the use of covalent bonding that makes π-electronic ions and valence-mismatched metal complexes as well as protonated and deprotonated states. Noncovalent ion complexation is another method used to create π-electronic ions, particularly for anion binding, producing negatively charged π-electronic systems. Charged π-electronic systems afford various ion pairs, consisting of both cationic and anionic π-systems, depending on their combinations. Geometries and electronic states of the constituents in π-electronic ion pairs affect the photophysical properties and assembling modes. Recent progress in π-electronic ion pairs has revealed intriguing characteristics, including the transformation into radical pairs through electron transfer and the magnetic properties influenced by the countercations. Furthermore, the assembly states exhibit diversity as observed in crystals and soft materials including liquid-crystal mesophases. While the chemistry of ion pairs (salts) is well-established, the field of π-electronic ion pairs is relatively new; however, it holds great promise for future applications in novel materials and devices.
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Affiliation(s)
- Yohei Haketa
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan.
| | - Kazuhisa Yamasumi
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan.
| | - Hiromitsu Maeda
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan.
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6
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Lara Garnica R, Rama RJ, Chambrier I, Agonigi G, Hughes DL, Lalinde E, Bochmann M, Fernandez-Cestau J. Luminescent Au(III)-M(I) (M = Cu, Ag) Aggregates Based on Dicyclometalated Bis(alkynyl) Gold Anions†. Inorg Chem 2023; 62:12683-12696. [PMID: 37534700 PMCID: PMC10428224 DOI: 10.1021/acs.inorgchem.3c00870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Indexed: 08/04/2023]
Abstract
The syntheses and structures of a series of complexes based on the C∧C-chelated Au(III) unit (C∧C = 4,4'-bis(t-butyl) 2,2'-biphenyl-1,1'-diyl) are reported, namely, [{(C∧C)Au(C≡CtBu)2}2M2], (C∧C)Au(C≡CR)(C≡NXyl), and [{(C∧C)Au(C≡CR)2}{M(C≡NXyl)}] (M = Ag, Cu; R = tBu, C6H4tBu-4, C6H4OMe-4; Xyl = 3,5-Me2C6H3). The X-ray structures reveal a broad range of dispositions determined by the different coordination modes of Ag(I) or Cu(I). The complexes are bright photoemitters in the solid state and in poly(methyl methacrylate) (PMMA) films. The photoluminescence is dominated by 3IL(C∧C) transitions, with indirect effects from the rest of the molecules, as supported by theoretical calculations. This work opens up the possibility of accessing Au(III) carbon-rich anions to construct photoluminescent aggregates.
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Affiliation(s)
- Rebeca Lara Garnica
- School
of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K.
- Departamento
de Química—Centro de Investigación en Síntesis
Química (CISQ), Universidad de La
Rioja, E-26006 Logroño, Spain
| | - Raquel J. Rama
- School
of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K.
- Departamento
de Química Inorgánica, Universidad
de Sevilla, 41071 Sevilla, Spain
- SMN Centre
for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, Sem Sælands vei 26, 0371 Oslo, Norway
| | - Isabelle Chambrier
- School
of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K.
| | - Gabriele Agonigi
- School
of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K.
- Dipartimento
di Chimica e Chimica Industriale, University
of Pisa, I-56124 Pisa, Italy
| | - David L. Hughes
- School
of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K.
| | - Elena Lalinde
- Departamento
de Química—Centro de Investigación en Síntesis
Química (CISQ), Universidad de La
Rioja, E-26006 Logroño, Spain
| | - Manfred Bochmann
- School
of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K.
| | - Julio Fernandez-Cestau
- School
of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K.
- Departamento
de Química—Centro de Investigación en Síntesis
Química (CISQ), Universidad de La
Rioja, E-26006 Logroño, Spain
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7
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Blasco D, Reboiro F, Sundholm D, Olmos ME, Monge M, López-de-Luzuriaga JM. A "gold standard" computational proof for the existence of gold(III) aurophilicity. Dalton Trans 2023; 52:2219-2222. [PMID: 36779753 DOI: 10.1039/d2dt03731a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The existence of aurophilic gold(III)⋯gold(III) interactions has for a long time been neglected due to structural arguments and comparison with the aurophilicity of gold(I) compounds. We show with calculations at the CCSD(T) level of theory that the [AuIII(CH3)3(NH3)]2 dimer has a metallophilic dispersion interaction between the gold(III) atoms of 10.5 kJ mol-1. The aurophilic interaction is illustrated by topological QTAIM calculations and IRI analysis.
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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. .,Department of Chemistry, Faculty of Science, University of Helsinki, P.O. Box 55 (A.I. Virtasen aukio 1), FIN-00014, Helsinki, Finland.
| | - Félix Reboiro
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja, Madre de Dios 53, 26006, Logroño, Spain.
| | - Dage Sundholm
- Department of Chemistry, Faculty of Science, University of Helsinki, P.O. Box 55 (A.I. Virtasen aukio 1), FIN-00014, Helsinki, Finland.
| | - 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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8
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Lemon CM, Powers DC, Huynh M, Maher AG, Phillips AA, Tripet BP, Nocera DG. Ag(III)···Ag(III) Argentophilic Interaction in a Cofacial Corrole Dyad. Inorg Chem 2023; 62:3-17. [PMID: 36538590 DOI: 10.1021/acs.inorgchem.2c02285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Metallophilic interactions between closed-shell metal centers are exemplified by d10 ions, with Au(I) aurophilic interactions as the archetype. Such an interaction extends to d8 species, and examples involving Au(III) are prevalent. Conversely, Ag(III) argentophilic interactions are uncommon. Here, we identify argentophilic interactions in silver corroles, which are authentic Ag(III) species. The crystal structure of a monomeric silver corrole is a dimer in the solid state, and the macrocycle exhibits an atypical domed conformation. In order to evaluate whether this represents an authentic metallophilic interaction or a crystal-packing artifact, the analogous cofacial or "pacman" corrole was prepared. The conformation of the monomer was recapitulated in the silver pacman corrole, exhibiting a short 3.67 Å distance between metal centers and a significant compression of the xanthene backbone. Theoretical calculations support the presence of a rare Ag(III)···Ag(III) argentophilic interaction in the pacman complex.
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Affiliation(s)
- Christopher M Lemon
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States.,Department of Chemistry and Biochemistry, Montana State University (MSU), P.O. Box 173400, Bozeman, Montana 59717, United States
| | - David C Powers
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Michael Huynh
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Andrew G Maher
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Austin A Phillips
- Department of Chemistry and Biochemistry, Montana State University (MSU), P.O. Box 173400, Bozeman, Montana 59717, United States
| | - Brian P Tripet
- Department of Chemistry and Biochemistry, Montana State University (MSU), P.O. Box 173400, Bozeman, Montana 59717, United States
| | - Daniel G Nocera
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
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9
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Aragoni MC, Cherchi MF, Lippolis V, Pintus A, Podda E, Slawin AMZ, Woollins JD, Arca M. Self-Assembly of Supramolecular Architectures Driven by σ-Hole Interactions: A Halogen-Bonded 2D Network Based on a Diiminedibromido Gold(III) Complex and Tribromide Building Blocks. Molecules 2022; 27:molecules27196289. [PMID: 36234826 PMCID: PMC9571214 DOI: 10.3390/molecules27196289] [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: 09/07/2022] [Revised: 09/15/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022] Open
Abstract
The reaction of the complex [Au(phen)Br2](PF6) (phen = 1,10-phenanthroline) with molecular dibromine afforded {[Au(phen)Br2](Br3)}∞ (1). Single crystal diffraction analysis showed that the [Au(phen)Br2]+ complex cations were bridged by asymmetric tribromide anions to form infinite zig-zag chains featuring the motif ···Au–Br···Br–Br–Br···Au–Br···Br–Br–Br···. The complex cation played an unprecedented halogen bonding (XB) donor role engaging type-I and type-II XB noncovalent interactions of comparable strength with symmetry related [Br3]− anions. A network of hydrogen bonds connects parallel chains in an infinite 2D network, contributing to the layered supramolecular architecture. DFT calculations allowed clarification of the nature of the XB interactions, showing the interplay between orbital mixing, analyzed at the NBO level, and electrostatic contribution, explored based on the molecular potential energy (MEP) maps of the interacting synthons.
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Affiliation(s)
- M. Carla Aragoni
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 bivio per Sestu, 09042 Monserrato, Italy
| | - M. Francesca Cherchi
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 bivio per Sestu, 09042 Monserrato, Italy
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 bivio per Sestu, 09042 Monserrato, Italy
| | - Anna Pintus
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 bivio per Sestu, 09042 Monserrato, Italy
| | - Enrico Podda
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 bivio per Sestu, 09042 Monserrato, Italy
- Centro Servizi di Ateneo per la Ricerca (CeSAR), Università degli Studi di Cagliari, S.S. 554 bivio per Sestu, 09042 Monserrato, Italy
| | - Alexandra M. Z. Slawin
- EaStCHEM School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, Fife KY16 9ST, UK
| | - J. Derek Woollins
- EaStCHEM School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, Fife KY16 9ST, UK
- Department of Chemistry, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Massimiliano Arca
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 bivio per Sestu, 09042 Monserrato, Italy
- Correspondence:
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10
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Santibañez D, Mendizabal F. Quantum chemistry study in metallophilic interactions on complexes based in Au(I)-Pb(II) and Au(I)-Bi(III). MOLECULAR SIMULATION 2022. [DOI: 10.1080/08927022.2022.2068802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Daniel Santibañez
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Fernando Mendizabal
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
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11
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Wunsch JF, Eberle L, Mullen JP, Rominger F, Rudolph M, Hashmi ASK. Gem-Diaurated Gold(III) Complexes: Synthesis, Structure, Aurophilic Interaction, and Catalytic Activity. Inorg Chem 2022; 61:3508-3515. [PMID: 35179353 DOI: 10.1021/acs.inorgchem.1c03479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a protocol to synthesize air stable gem-diaurated gold(III) compounds from 1,3-diketones in a single cycloauration step with tetrachloroauric acid. So far related species were only accessible from phosphonium bis(ylide) ligands which hold the two gold atoms in close proximity. Lacking such a constraint, our compounds show the longest Au-Au distances of all gem-diaurated carbons, ranging from 3.26 to 3.32 Å. Modeling based on results of CCSD(T) calculations shows no stabilization by aurophilic interactions for our gold(III) systems, compared to 9.1 kcal/mol for gold(I) gem-diauration. This demonstrates no aurophilic interactions are needed for the isolation of air stable gem-diaurated gold(III) complexes. We show the new gem-diaurated gold(III) compounds are active in the gold-catalyzed phenol synthesis and highly active in the cycloisomerization of an N-propargylcarboxamide; here, we obtained the so far highest known TON of over 2500 per gold atom with respect to the oxazole formation.
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Affiliation(s)
- Jonas F Wunsch
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Lukas Eberle
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Joseph P Mullen
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.,Chemistry Department, Faculty of Science, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia
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12
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Stück R, Krause M, Brünink D, Buss S, Doltsinis NL, Strassert CA, Klein A. Luminescent Pd(II) Complexes with Tridentate
−
Aryl‐pyridine‐(benzo)thiazole Ligands. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- René Stück
- Universität zu Köln Mathematisch-Naturwissenschaftliche Fakultät Department für Chemie Institut für Anorganische Chemie Greinstraße 6 D-50939 Köln
| | - Maren Krause
- Universität zu Köln Mathematisch-Naturwissenschaftliche Fakultät Department für Chemie Institut für Anorganische Chemie Greinstraße 6 D-50939 Köln
| | - Dana Brünink
- Westfälische Wilhelms-Universität Münster Institut für Festkörpertheorie and Center for Multiscale Theory and Computation Wilhelm-Klemm-Straße 10 D-48149 Münster Germany
| | - Stefan Buss
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie, CiMIC, CeNTech Heisenbergstraße 11 D-48149 Münster Germany
| | - Nikos L. Doltsinis
- Westfälische Wilhelms-Universität Münster Institut für Festkörpertheorie and Center for Multiscale Theory and Computation Wilhelm-Klemm-Straße 10 D-48149 Münster Germany
| | - Cristian A. Strassert
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie, CiMIC, CeNTech Heisenbergstraße 11 D-48149 Münster Germany
| | - Axel Klein
- Universität zu Köln Mathematisch-Naturwissenschaftliche Fakultät Department für Chemie Institut für Anorganische Chemie Greinstraße 6 D-50939 Köln
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13
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14
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Rocchigiani L, Bochmann M. Recent Advances in Gold(III) Chemistry: Structure, Bonding, Reactivity, and Role in Homogeneous Catalysis. Chem Rev 2020; 121:8364-8451. [DOI: 10.1021/acs.chemrev.0c00552] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Luca Rocchigiani
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR47TJ, United Kingdom
| | - Manfred Bochmann
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR47TJ, United Kingdom
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15
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Mendizabal F, Miranda-Rojas S. Electronic and optical properties of [Au(CH 3CSS)] 4 cluster. A quantum chemistry study. RSC Adv 2020; 10:33549-33557. [PMID: 35515021 PMCID: PMC9056745 DOI: 10.1039/d0ra06982e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 09/02/2020] [Indexed: 11/21/2022] Open
Abstract
The uses of the sulfur-gold bond in the design of new molecular clusters have gained increasing attention in recent years. Their size and shape are diverse providing a wide variety of optical and electronic properties. Here we present a computational study of the absorption and emission properties of a small [Au(dithioacetate)]4 cluster as a model for these systems. The electronic structure of the Au4S8 core of this cluster permits rationalization of the source of the optical properties and how these are connected with that specific structural scaffold. Due to the complex nature of the aurophilic intramolecular interactions taking place in this system, several methods were used, such as the MP2, SCS-MP2, PBE-D3, and TPSS-D3 levels; both in gas and solvent phases. The absorption spectra of the cluster were calculated by the single excitation time-dependent-DFT (TD-DFT) method, CC2, SCS-CC2, and ADC(2) levels. The ab initio correlated calculations and previously reported experimental data have been used to assess the performance of our calculations. Moreover, the emission T1-So transition was calculated, where the SCS-CC2 level showed an excellent agreement with the experimental results. The core Au4S8 was identified as mainly responsible for the absorption and emission transitions according to the theoretical model.
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Affiliation(s)
- Fernando Mendizabal
- Departamento de Química, Facultad de Ciencias, Universidad de Chile P.O. Box 653, Las Palmeras 3425, Ñuñoa Santiago Chile
| | - Sebastián Miranda-Rojas
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andrés Bello Avenida República 275 Santiago Chile
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16
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Ghosh G, Ghosh T, Fernández G. Controlled Supramolecular Polymerization of d
8
Metal Complexes through Pathway Complexity and Seeded Growth. Chempluschem 2020; 85:1022-1033. [DOI: 10.1002/cplu.202000210] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/25/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Goutam Ghosh
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität, Münster Correnstraße, 40 48149 Münster Germany
| | - Tanwistha Ghosh
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität, Münster Correnstraße, 40 48149 Münster Germany
| | - Gustavo Fernández
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität, Münster Correnstraße, 40 48149 Münster Germany
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17
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Haino T, Hirao T. Supramolecular Polymerization and Functions of Isoxazole Ring Monomers. CHEM LETT 2020. [DOI: 10.1246/cl.200031] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Takeharu Haino
- Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Takehiro Hirao
- Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
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18
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Selective modification of alkyne-linked peptides and proteins by cyclometalated gold(III) (C^N) complex-mediated alkynylation. Bioorg Med Chem 2020; 28:115375. [DOI: 10.1016/j.bmc.2020.115375] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 12/16/2022]
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19
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Leung MY, Leung SYL, Yim KC, Chan AKW, Ng M, Yam VWW. Multiresponsive Luminescent Cationic Cyclometalated Gold(III) Amphiphiles and Their Supramolecular Assembly. J Am Chem Soc 2019; 141:19466-19478. [PMID: 31789511 DOI: 10.1021/jacs.9b10607] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A new class of amphiphilic tridentate cyclometalated gold(III) complexes has been designed and synthesized as luminescent supramolecular building blocks. Positively charged trimethylammonium (-CH2NMe3+) containing alkynyl ligands have been incorporated to introduce the electrostatic interactions. The X-ray crystal structures of two of the complexes have been determined, and the existence of π-π interactions between molecules has been observed. Steady-state and time-resolved absorption and emission studies have been carried out to investigate the nature of the excited states. The complexes are found to exhibit self-assembly properties with the assistance of π-π stacking and hydrophobic interactions and possibly weak Au···Au interaction, resulting in notable emergence of low-energy absorption bands and luminescence changes. The presence of a large hydrophobic moiety is found to be crucial for the formation of aggregates, especially in polar media where hydrophobic interactions play an important role. The nature of the counterion has been shown to have a significant effect on the extent of self-assembly in different media. Upon aggregation, nanofibers are formed in polar media, while nanorods are observed in nonpolar media in one of the representative complexes. Interestingly, a small modification on the alkynyl ligand resulted in the formation of nanoribbons instead. Intriguing luminescence mechanochromic properties have also been observed. This orthogonal and rational molecular design strategy has been shown to be effective in the construction of gold(III)-based smart and multiresponsive materials.
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Affiliation(s)
- Ming-Yi Leung
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , People's Republic of China
| | - Sammual Yu-Lut Leung
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , People's Republic of China
| | - King-Chin Yim
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , People's Republic of China
| | - Alan Kwun-Wa Chan
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , People's Republic of China
| | - Maggie Ng
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , People's Republic of China
| | - Vivian Wing-Wah Yam
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , People's Republic of China
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20
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Wan Q, Xia J, Lu W, Yang J, Che CM. Kinetically Controlled Self-Assembly of Phosphorescent AuIII Aggregates and Ligand-to-Metal–Metal Charge Transfer Excited State: A Combined Spectroscopic and DFT/TDDFT Study. J Am Chem Soc 2019; 141:11572-11582. [DOI: 10.1021/jacs.9b04007] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Qingyun Wan
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Jiuxu Xia
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Wei Lu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Jun Yang
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Chi-Ming Che
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- HKU Shenzhen Institute of Research & Innovation, Shenzhen 518057, China
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21
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Fernandez-Cestau J, Rama RJ, Rocchigiani L, Bertrand B, Lalinde E, Linnolahti M, Bochmann M. Synthesis and Photophysical Properties of Au(III)–Ag(I) Aggregates. Inorg Chem 2019; 58:2020-2030. [DOI: 10.1021/acs.inorgchem.8b02987] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
| | - Raquel J. Rama
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
- Departamento de Química Inorgánica, Universidad de Sevilla, E- 41092 Sevilla, Spain
| | - Luca Rocchigiani
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| | - Benoı̂t Bertrand
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| | - Elena Lalinde
- Departamento de Química − Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006, Logroño, Spain
| | - Mikko Linnolahti
- Department of Chemistry, University of Eastern Finland, Joensuu Campus, Joensuu, Finland
| | - Manfred Bochmann
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
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22
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Bachmann M, Fessler R, Blacque O, Venkatesan K. Towards blue emitting monocyclometalated gold(iii) complexes – synthesis, characterization and photophysical investigations. Dalton Trans 2019; 48:7320-7330. [DOI: 10.1039/c8dt05034a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The electronic properties of cyclometalating ligands and ancillary ligands were successfully tailored to achieve blue emission in monocyclometalated gold(iii) complexes.
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Affiliation(s)
- Michael Bachmann
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - Reto Fessler
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - Olivier Blacque
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - Koushik Venkatesan
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
- Department of Molecular Sciences
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23
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Wan Q, Xiao X, To W, Lu W, Chen Y, Low K, Che C. Counteranion‐ and Solvent‐Mediated Chirality Transfer in the Supramolecular Polymerization of Luminescent Platinum(II) Complexes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811943] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qingyun Wan
- HKU-CAS Joint Laboratory on New Materials State Key Laboratory of Synthetic Chemistry Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Xin‐Shan Xiao
- HKU-CAS Joint Laboratory on New Materials State Key Laboratory of Synthetic Chemistry Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Wai‐Pong To
- HKU-CAS Joint Laboratory on New Materials State Key Laboratory of Synthetic Chemistry Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Wei Lu
- Department of Chemistry Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Yong Chen
- Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences Beijing 100190 China
| | - Kam‐Hung Low
- HKU-CAS Joint Laboratory on New Materials State Key Laboratory of Synthetic Chemistry Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Chi‐Ming Che
- HKU-CAS Joint Laboratory on New Materials State Key Laboratory of Synthetic Chemistry Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
- HKU Shenzhen Institute of Research and Innovation Shenzhen Guangdong 518053 China
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24
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Wan Q, Xiao X, To W, Lu W, Chen Y, Low K, Che C. Counteranion‐ and Solvent‐Mediated Chirality Transfer in the Supramolecular Polymerization of Luminescent Platinum(II) Complexes. Angew Chem Int Ed Engl 2018; 57:17189-17193. [DOI: 10.1002/anie.201811943] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Qingyun Wan
- HKU-CAS Joint Laboratory on New Materials State Key Laboratory of Synthetic Chemistry Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Xin‐Shan Xiao
- HKU-CAS Joint Laboratory on New Materials State Key Laboratory of Synthetic Chemistry Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Wai‐Pong To
- HKU-CAS Joint Laboratory on New Materials State Key Laboratory of Synthetic Chemistry Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Wei Lu
- Department of Chemistry Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Yong Chen
- Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences Beijing 100190 China
| | - Kam‐Hung Low
- HKU-CAS Joint Laboratory on New Materials State Key Laboratory of Synthetic Chemistry Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Chi‐Ming Che
- HKU-CAS Joint Laboratory on New Materials State Key Laboratory of Synthetic Chemistry Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
- HKU Shenzhen Institute of Research and Innovation Shenzhen Guangdong 518053 China
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25
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Liu XY, Li ZW, Fang WH, Cui G. Nonadiabatic dynamics simulations on internal conversion and intersystem crossing processes in gold(i) compounds. J Chem Phys 2018; 149:044301. [PMID: 30068207 DOI: 10.1063/1.5029991] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The position at which the second gold(i)-phosphine group is attached was experimentally found to play a noticeable role in intersystem crossing rates of gold(i) naphthalene derivatives. However, the physical origin is ambiguous. Herein we have employed generalized trajectory-based surface-hopping dynamics simulations to simulate the excited-state relaxation dynamics of these gold(i) naphthalene compounds including both the intersystem crossing process from the initially populated first excited singlet states S1 to triplet manifolds and internal conversion processes within these triplet states. Our predicted intersystem crossing rates are consistent with experiments very well. On the basis of the present results, we have found that (1) ultrafast and subpicosecond intersystem crossing processes are mainly caused by small energy gaps and large spin-orbit couplings between S1 and Tn; (2) adding the second gold(i)-phosphine group does not increase spin-orbit couplings between S1 and Tn but decrease their values remarkably, which implies that heavy-atom effects are state-specific, not state-universal; (3) the position at which the second gold(i)-phosphine group is attached has a remarkable influence on the electronic structures of S1 and Tn and their relative energies, which affect energy gaps and spin-orbit couplings between S1 and Tn and eventually modulate intersystem crossing rates from S1 to Tn. These new insights are very useful for the design of gold-containing compounds with excellent photoluminescence properties. Finally, this work also exemplifies that different isomers of a compound could have distinct excited-state relaxation dynamics.
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Affiliation(s)
- Xiang-Yang Liu
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Zi-Wen Li
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Wei-Hai Fang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Ganglong Cui
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
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26
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Wan Q, To WP, Yang C, Che CM. The Metal-Metal-to-Ligand Charge Transfer Excited State and Supramolecular Polymerization of Luminescent Pincer PdII
-Isocyanide Complexes. Angew Chem Int Ed Engl 2018; 57:3089-3093. [DOI: 10.1002/anie.201712249] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Qingyun Wan
- State Key Laboratory of Synthetic Chemistry; Institute of Molecular Functional Materials; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong SAR China
| | - Wai-Pong To
- State Key Laboratory of Synthetic Chemistry; Institute of Molecular Functional Materials; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong SAR China
| | - Chen Yang
- State Key Laboratory of Synthetic Chemistry; Institute of Molecular Functional Materials; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong SAR China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry; Institute of Molecular Functional Materials; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong SAR China
- HKU Shenzhen Institute of Research and Innovation; Shenzhen Guangdong 518053 China
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27
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Wan Q, To WP, Yang C, Che CM. The Metal-Metal-to-Ligand Charge Transfer Excited State and Supramolecular Polymerization of Luminescent Pincer PdII
-Isocyanide Complexes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712249] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Qingyun Wan
- State Key Laboratory of Synthetic Chemistry; Institute of Molecular Functional Materials; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong SAR China
| | - Wai-Pong To
- State Key Laboratory of Synthetic Chemistry; Institute of Molecular Functional Materials; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong SAR China
| | - Chen Yang
- State Key Laboratory of Synthetic Chemistry; Institute of Molecular Functional Materials; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong SAR China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry; Institute of Molecular Functional Materials; Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong SAR China
- HKU Shenzhen Institute of Research and Innovation; Shenzhen Guangdong 518053 China
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28
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Jobbágy C, Baranyai P, Szabó P, Holczbauer T, Rácz B, Li L, Naumov P, Deák A. Unexpected formation of a fused double cycle trinuclear gold(i) complex supported by ortho-phenyl metallated aryl-diphosphine ligands and strong aurophilic interactions. Dalton Trans 2018; 45:12569-75. [PMID: 27439467 DOI: 10.1039/c6dt01528j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first homoleptic trinuclear arylgold(i) complex, [Au3(L')2](NO3) (3), based on an ortho-phenyl metallated aryl-diphosphine ligand (L' = o-C6H4PPh(C15H10O)PPh2), has been obtained through a new thermolytic reaction of the corresponding diauracycle, [Au2(L)2](NO3)2 (L = xantphos). The formation of 3 involves activation of the ortho-phenyl C-H bond of the xantphos ligands. The presence of Au-C bonds in this new gold-diphosphine cluster is not its only remarkable feature, since it also displays two 12-membered rings fused together and a linear {Au3} chain with aurophilic interactions. Complex 3 exhibits strong sky-blue luminescence that can be assigned to a triplet metal-metal ((3)MM) transition partially mixed with a ligand-to-metal-metal charge transfer ((3)LMMCT) transition related to the aurophilic bonding. This [Au3(L')2](+) triauracycle also shows AIEE-activity, and is a selective luminescent chemosensor for metal ions.
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Affiliation(s)
- Csaba Jobbágy
- Hungarian Academy of Sciences, MTA TTK SZKI, "Lendület" Supramolecular Chemistry Research Group, Magyar Tudósok körútja 2, 1117 Budapest, Hungary.
| | - Péter Baranyai
- Hungarian Academy of Sciences, MTA TTK SZKI, "Lendület" Supramolecular Chemistry Research Group, Magyar Tudósok körútja 2, 1117 Budapest, Hungary.
| | - Pál Szabó
- Hungarian Academy of Sciences, MTA TTK SZKI, MS Metabolomics Research Group, Magyar Tudósok körútja 2, 1117 Budapest, Hungary
| | - Tamás Holczbauer
- Hungarian Academy of Sciences, MTA TTK SZKI, Chemical Crystallography Research Group, Magyar Tudósok körútja 2, 1117 Budapest, Hungary
| | - Barbara Rácz
- Hungarian Academy of Sciences, MTA TTK SZKI, "Lendület" Supramolecular Chemistry Research Group, Magyar Tudósok körútja 2, 1117 Budapest, Hungary.
| | - Liang Li
- New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi, United Arab Emirates.
| | - Panče Naumov
- New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi, United Arab Emirates.
| | - Andrea Deák
- Hungarian Academy of Sciences, MTA TTK SZKI, "Lendület" Supramolecular Chemistry Research Group, Magyar Tudósok körútja 2, 1117 Budapest, Hungary.
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29
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Kuang S, Hu Z, Zhang H, Zhang X, Liang F, Zhao Z, Liu S. Enhancement of metal–metal interactions inside a large-cavity synthetic host in water. Chem Commun (Camb) 2018; 54:2169-2172. [DOI: 10.1039/c8cc00593a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A new host–guest strategy is developed to enhance metal–metal interactions between metal–terpyridyl complexes in aqueous solution.
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Affiliation(s)
- Shengjian Kuang
- The State Key Laboratory of Refractories and Metallurgy
- School of Chemistry and Chemical Engineering
- Wuhan University of Science and Technology
- Wuhan 430081
- China
| | - Zhixiong Hu
- The State Key Laboratory of Refractories and Metallurgy
- School of Chemistry and Chemical Engineering
- Wuhan University of Science and Technology
- Wuhan 430081
- China
| | - Hao Zhang
- The State Key Laboratory of Refractories and Metallurgy
- School of Chemistry and Chemical Engineering
- Wuhan University of Science and Technology
- Wuhan 430081
- China
| | - Xiongzhi Zhang
- The State Key Laboratory of Refractories and Metallurgy
- School of Chemistry and Chemical Engineering
- Wuhan University of Science and Technology
- Wuhan 430081
- China
| | - Feng Liang
- The State Key Laboratory of Refractories and Metallurgy
- School of Chemistry and Chemical Engineering
- Wuhan University of Science and Technology
- Wuhan 430081
- China
| | - Zhiyong Zhao
- The State Key Laboratory of Refractories and Metallurgy
- School of Chemistry and Chemical Engineering
- Wuhan University of Science and Technology
- Wuhan 430081
- China
| | - Simin Liu
- The State Key Laboratory of Refractories and Metallurgy
- School of Chemistry and Chemical Engineering
- Wuhan University of Science and Technology
- Wuhan 430081
- China
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30
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Siu SKL, Chung CYS, Yam VWW. Amphiphilic oligo(ethylene glycol)- and poly(ethyleneoxide)-block-poly(propylene oxide)-block-poly-(ethylene oxide)-containing cyclometalated alkynylgold(III) complexes: From basic photophysics to self-assembly and stimuli-responsive properties. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.04.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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31
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Tiekink ER. Supramolecular assembly based on “emerging” intermolecular interactions of particular interest to coordination chemists. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.01.009] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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32
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Chan KT, Tong GSM, Wan Q, Cheng G, Yang C, Che CM. Strongly Luminescent Cyclometalated Gold(III) Complexes Supported by Bidentate Ligands Displaying Intermolecular Interactions and Tunable Emission Energy. Chem Asian J 2017; 12:2104-2120. [PMID: 28586132 DOI: 10.1002/asia.201700686] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Indexed: 01/23/2023]
Abstract
A series of charge-neutral AuIII complexes, which comprise a dicarbanionic C-deprotonated biphenyl ligand and bidentate ancillary ligands ([Au(C^C)(L^X)]; L^X=β-diketonate and relatives (O^O), quinolinolate and relatives (N^O), and diphosphino (P^P) ligands), were prepared. All the complexes are emissive in degassed CH2 Cl2 solutions and in thin-film samples with Φem up to 18 and 35 %, respectively, except for 5 and 6, which bear (N^O)-type ancillary ligands. Variation of the electronic characteristics of the β-diketonate ancillary ligand was demonstrated to be a viable route for tuning the emission color from blue-green (peak λem at ca. 466 nm for 1 and 2; 501 nm for 4 a and 4 b) to orange (peak λem at 585 nm for 3), in contrast to the common observations that the ancillary ligand has a negligible effect on the excited-state energy of the AuIII complexes reported in the literature. DFT/time-dependent (TD) DFT calculations revealed that the energies of the 3 ππ*(C^C) and the 3 ILCT(O^O) excited states (ILCT=intraligand charge transfer) switch in order on going from O^O=acetylacetonate (acac) to aryl-substituted β-diketonate ligands. Solution-processed and vacuum-deposited organic light-emitting diode (OLED) devices of selected complexes were prepared. The vacuum-deposited OLED fabricated with 2 displays a sky-blue emission with a maximum external quantum efficiency (EQE) of 6.71 % and CIE coordinates of (0.22, 0.40). The crystal structures of 7 and 9 reveal short intermolecular AuIII ⋅⋅⋅AuIII contacts, with intermetal distances of 3.408 and 3.453 Å, respectively. DFT/TDDFT calculations were performed on 7 and 9 to account for the noncovalent interactions. Solid samples of 1, 3, and 9 exhibit excimeric emission at room temperature, which is rarely reported in AuIII complexes.
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Affiliation(s)
- Kaai Tung Chan
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Glenna So Ming Tong
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Qingyun Wan
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Gang Cheng
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China.,HKU Shenzhen Institute of Research and Innovation, Shenzhen, Guangdong, 518053, China
| | - Chen Yang
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China.,HKU Shenzhen Institute of Research and Innovation, Shenzhen, Guangdong, 518053, China
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33
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To WP, Tong GSM, Cheung CW, Yang C, Zhou D, Che CM. Luminescent Cyclometalated Gold(III) Alkyl Complexes: Photophysical and Photochemical Properties. Inorg Chem 2017; 56:5046-5059. [PMID: 28406016 DOI: 10.1021/acs.inorgchem.7b00180] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A series of luminescent cyclometalated gold(III) complexes having alkyls as auxiliary ligands has been prepared. The alkyl ligand was found to effectively increase the emission quantum yields and lifetimes of luminescent cyclometalated gold(III) complexes by circumventing the population of LLCT excited states that are found in complexes supported by arylacetylide ligands. These gold(III) alkyl complexes exhibit emission quantum yields and lifetimes of up to 0.40 and 180 μs, respectively, in solution at room temperature. The triplet emission color of these complexes is tunable from yellow to sky blue by modifying the cyclometalating ligand.
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Affiliation(s)
- Wai-Pong To
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, HKU-CAS Joint Laboratory on New Materials, Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of China
| | - Glenna So Ming Tong
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, HKU-CAS Joint Laboratory on New Materials, Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of China
| | - Chi-Wah Cheung
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, HKU-CAS Joint Laboratory on New Materials, Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of China
| | - Chen Yang
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, HKU-CAS Joint Laboratory on New Materials, Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of China
| | - Dongling Zhou
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, HKU-CAS Joint Laboratory on New Materials, Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, HKU-CAS Joint Laboratory on New Materials, Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of China.,HKU Shenzhen Institute of Research and Innovation , Shenzhen 518053, People's Republic of China
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34
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Cyclometallierte AuIII
-Komplexe: Synthese, Reaktivität und physikalisch-chemische Eigenschaften. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201607225] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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35
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Kumar R, Nevado C. Cyclometalated Gold(III) Complexes: Synthesis, Reactivity, and Physicochemical Properties. Angew Chem Int Ed Engl 2017; 56:1994-2015. [DOI: 10.1002/anie.201607225] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 09/21/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Roopender Kumar
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 CH-8057 Switzerland
| | - Cristina Nevado
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 CH-8057 Switzerland
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36
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López-de-Luzuriaga JM, Monge M, Olmos ME. Luminescent aryl–group eleven metal complexes. Dalton Trans 2017; 46:2046-2067. [DOI: 10.1039/c6dt04386k] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This perspective highlights the recent developments in the study of the photoluminescent properties of aryl–group eleven complexes. Related properties and applications such as electroluminescence, triboluminescence, mechanochromism, luminescent liquid crystals, low molecular weight gelators and photocatalysts are also discussed.
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Affiliation(s)
- José M. López-de-Luzuriaga
- Departamento de Química
- Centro de Investigación en Síntesis Química (CISQ)
- Universidad de La Rioja, Complejo Científico-Tecnoloǵico
- 26006 – Logroño
- Spain
| | - Miguel Monge
- Departamento de Química
- Centro de Investigación en Síntesis Química (CISQ)
- Universidad de La Rioja, Complejo Científico-Tecnoloǵico
- 26006 – Logroño
- Spain
| | - M. Elena Olmos
- Departamento de Química
- Centro de Investigación en Síntesis Química (CISQ)
- Universidad de La Rioja, Complejo Científico-Tecnoloǵico
- 26006 – Logroño
- Spain
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37
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Hebenbrock M, Stegemann L, Kösters J, Doltsinis NL, Müller J, Strassert CA. Phosphorescent Pt(ii) complexes bearing a monoanionic C^N^N luminophore and tunable ancillary ligands. Dalton Trans 2017; 46:3160-3169. [DOI: 10.1039/c7dt00393e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A new monoanionic pincer luminophore is presented, yielding phosphorescent Pt(ii) complexes bearing a neutral 1,2,3-triazole ring introduced via click chemistry. The overall charge, intermolecular interactions and excited state properties can be manipulated and controlled.
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Affiliation(s)
- Marian Hebenbrock
- Institut für Anorganische und Analytische Chemie
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
| | - Linda Stegemann
- Physikalisches Institut and Center for Nanotechnology
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
| | - Jutta Kösters
- Institut für Anorganische und Analytische Chemie
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
| | - Nikos L. Doltsinis
- Institut für Festkörpertheorie and Center for Multiscale Theory and Computation
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
| | - Jens Müller
- Institut für Anorganische und Analytische Chemie
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
| | - Cristian A. Strassert
- Physikalisches Institut and Center for Nanotechnology
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
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38
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Wong BY, Wong H, Wong Y, Chan M, Yam VW. Versatile Synthesis of Luminescent Tetradentate Cyclometalated Alkynylgold(III) Complexes and Their Application in Solution‐Processable Organic Light‐Emitting Devices. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607816] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ben Yiu‐Wing Wong
- Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong P.R. China
| | - Hok‐Lai Wong
- Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong P.R. China
| | - Yi‐Chun Wong
- Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong P.R. China
| | - Mei‐Yee Chan
- Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong P.R. China
| | - Vivian Wing‐Wah Yam
- Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong P.R. China
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39
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Wong BYW, Wong HL, Wong YC, Chan MY, Yam VWW. Versatile Synthesis of Luminescent Tetradentate Cyclometalated Alkynylgold(III) Complexes and Their Application in Solution-Processable Organic Light-Emitting Devices. Angew Chem Int Ed Engl 2016; 56:302-305. [DOI: 10.1002/anie.201607816] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 10/27/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Ben Yiu-Wing Wong
- Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P.R. China
| | - Hok-Lai Wong
- Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P.R. China
| | - Yi-Chun Wong
- Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P.R. China
| | - Mei-Yee Chan
- Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P.R. China
| | - Vivian Wing-Wah Yam
- Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P.R. China
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40
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Currie L, Fernandez-Cestau J, Rocchigiani L, Bertrand B, Lancaster SJ, Hughes DL, Duckworth H, Jones STE, Credgington D, Penfold TJ, Bochmann M. Luminescent Gold(III) Thiolates: Supramolecular Interactions Trigger and Control Switchable Photoemissions from Bimolecular Excited States. Chemistry 2016; 23:105-113. [PMID: 27859790 PMCID: PMC5215685 DOI: 10.1002/chem.201603841] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Indexed: 11/21/2022]
Abstract
A new family of cyclometallated gold(III) thiolato complexes based on pyrazine‐centred pincer ligands has been prepared, (C^Npz^C)AuSR, where C^Npz^C=2,6‐bis(4‐ButC6H4)pyrazine dianion and R=Ph (1), C6H4tBu‐4 (2), 2‐pyridyl (3), 1‐naphthyl (1‐Np, 4), 2‐Np (5), quinolinyl (Quin, 6), 4‐methylcoumarinyl (Coum, 7) and 1‐adamantyl (8). The complexes were isolated as yellow to red solids in high yields using mild synthetic conditions. The single‐crystal X‐ray structures revealed that the colour of the deep‐red solids is associated with the formation of a particular type of short (3.2–3.3 Å) intermolecular pyrazine⋅⋅⋅pyrazine π‐interactions. In some cases, yellow and red crystal polymorphs were formed; only the latter were emissive at room temperature. Combined NMR and UV/Vis techniques showed that the supramolecular π‐stacking interactions persist in solution and give rise to intense deep‐red photoluminescence. Monomeric molecules show vibronically structured green emissions at low temperature, assigned to ligand‐based 3IL(C^N^C) triplet emissions. By contrast, the unstructured red emissions correlate mainly with a 3LLCT(SR→{(C^Npz^C)2}) charge transfer transition from the thiolate ligand to the π⋅⋅⋅π dimerized pyrazine. Unusually, the π‐interactions can be influenced by sample treatment in solution, such that the emissions can switch reversibly from red to green. To our knowledge this is the first report of aggregation‐enhanced emission in gold(III) chemistry.
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Affiliation(s)
- Lucy Currie
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| | | | - Luca Rocchigiani
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| | - Benoît Bertrand
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| | - Simon J Lancaster
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| | - David L Hughes
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| | - Helen Duckworth
- School of Chemistry, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
| | - Saul T E Jones
- Department of Physics, Cavendish Laboratory, Cambridge University, Cambridge, CB3 0HF, United Kingdom
| | - Dan Credgington
- Department of Physics, Cavendish Laboratory, Cambridge University, Cambridge, CB3 0HF, United Kingdom
| | - Thomas J Penfold
- School of Chemistry, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
| | - Manfred Bochmann
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
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41
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Tang MC, Chan AKW, Chan MY, Yam VWW. Platinum and Gold Complexes for OLEDs. Top Curr Chem (Cham) 2016; 374:46. [PMID: 27573398 DOI: 10.1007/s41061-016-0046-y] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 06/14/2016] [Indexed: 12/20/2022]
Abstract
Encouraging efforts on the design of high-performance organic materials and smart architecture during the past two decades have made organic light-emitting device (OLED) technology an important competitor for the existing liquid crystal displays. Particularly, the development of phosphorescent materials based on transition metals plays a crucial role for this success. Apart from the extensively studied iridium(III) complexes with d(6) electronic configuration and octahedral geometry, the coordination-unsaturated nature of d(8) transition metal complexes with square-planar structures has been found to provide intriguing spectroscopic and luminescence properties. This article briefly summarizes the development of d(8) platinum(II) and gold(III) complexes and their application studies in the fabrication of phosphorescent OLEDs. An in-depth understanding of the nature of the excited states has offered a great opportunity to fine-tune the emission colors covering the entire visible spectrum as well as to improve their photophysical properties. With good device engineering, high performance vacuum-deposited OLEDs with external quantum efficiencies (EQEs) of up to 30 % and solution-processable OLEDs with EQEs of up to 10 % have been realized by modifying the cyclometalated or pincer ligands of these metal complexes. These impressive demonstrations reveal that d(8) metal complexes are promising candidates as phosphorescent materials for OLED applications in displays as well as in solid-state lighting in the future.
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Affiliation(s)
- Man-Chung Tang
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Alan Kwun-Wa Chan
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Mei-Yee Chan
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Vivian Wing-Wah Yam
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
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42
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Synthesis, photophysical characterization and DFT studies on fluorine-free deep-blue emitting Pt(II) complexes. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2016. [DOI: 10.1515/znb-2015-0229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Herein we show that cyclometalated, square planar Pt(II) complexes can be tuned to achieve deep-blue phosphorescent emitters. For this purpose, the introduction of an electron-donating moiety on two different bidentate NˆN and NˆO fluorine-free luminophores, namely 2-(1H-tetrazol-5-yl)pyridine and picolinic acid, was carried out. The remaining two coordination sites of the Pt(II) metal center were filled by a sterically demanding cyclometallating unit, namely a tertiary phosphite CˆP ligand. This ancillary ligand avoids aggregation and provides high solubility in organic solvents. Based on this approach, we were able to blue-shift the emission of the complexes down to 411 nm, and to achieve a maximal photoluminescence quantum yield of 56% in the solid state.
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43
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Rekhroukh F, Estevez L, Bijani C, Miqueu K, Amgoune A, Bourissou D. Coordination–Insertion of Norbornene at Gold: A Mechanistic Study. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00040] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Feriel Rekhroukh
- Université de Toulouse, UPS, Laboratoire Hétérochimie
Fondamentale Appliquée, 118 route de Narbonne, F-31062 Toulouse, France; CNRS, LHFA UMR
5069, F-31062 Toulouse, France
| | - Laura Estevez
- Université de Pau et des Pays de l’Adour, Institut
des Sciences Analytiques et de Physico-Chimie pour l’Environnement
et les Matériaux, Hélioparc, 2 Avenue du Président Angot, 64053 Pau cedex 09, France; CNRS, IPREM UMR 5254, F-64053 Pau, France
- Departamento
de Química Física, Facultade de Química, Universidade de Vigo,
Lagoas-Marcosende s/n, 36310 Vigo, Galicia, Spain
| | - Christian Bijani
- Laboratoire de Chimie de Coordination (CNRS UPR 8241), 205 Route de Narbonne, 31077 Toulouse, France
| | - Karinne Miqueu
- Université de Pau et des Pays de l’Adour, Institut
des Sciences Analytiques et de Physico-Chimie pour l’Environnement
et les Matériaux, Hélioparc, 2 Avenue du Président Angot, 64053 Pau cedex 09, France; CNRS, IPREM UMR 5254, F-64053 Pau, France
| | - Abderrahmane Amgoune
- Université de Toulouse, UPS, Laboratoire Hétérochimie
Fondamentale Appliquée, 118 route de Narbonne, F-31062 Toulouse, France; CNRS, LHFA UMR
5069, F-31062 Toulouse, France
| | - Didier Bourissou
- Université de Toulouse, UPS, Laboratoire Hétérochimie
Fondamentale Appliquée, 118 route de Narbonne, F-31062 Toulouse, France; CNRS, LHFA UMR
5069, F-31062 Toulouse, France
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44
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Chou CC, Yang CC, Chang HC, Lee WZ, Kuo TS. Weaving an infinite 3-D supramolecular network via AuI⋯AuIII aurophilicity and C–H⋯Cl hydrogen bonding. NEW J CHEM 2016. [DOI: 10.1039/c5nj02860d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of ligand-unsupported AuI⋯AuIII interactions to increase the structural dimensionality to a 3-D array was demonstrated.
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Affiliation(s)
- Chang-Chuan Chou
- Center for General Education
- Chang Gung University of Science and Technology
- Tao-Yuan 33303
- Republic of China
| | - Chia-Chi Yang
- Center for General Education
- Chang Gung University of Science and Technology
- Tao-Yuan 33303
- Republic of China
| | - Hao-Ching Chang
- Department of Chemistry
- National Taiwan Normal University
- Taipei 11650
- Republic of China
| | - Way-Zen Lee
- Department of Chemistry
- National Taiwan Normal University
- Taipei 11650
- Republic of China
| | - Ting-Shen Kuo
- Department of Chemistry
- National Taiwan Normal University
- Taipei 11650
- Republic of China
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45
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Xiao XS, Zou C, Guan X, Yang C, Lu W, Che CM. Homoleptic gold(i) N-heterocyclic allenylidene complexes: excited-state properties and lyotropic chromonics. Chem Commun (Camb) 2016; 52:4983-6. [DOI: 10.1039/c5cc09571a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Phosphorescent Au(i) bis(N-heterocyclic allenylidene) complexes exhibit panchromatic transient absorption upon electronic photo-excitation and can self-organize into lyotropic chromonic mesophases in aqueous solutions.
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Affiliation(s)
- Xin-Shan Xiao
- State Key Laboratory of Synthetic Chemistry
- HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry
- The University of Hong Kong
- Hong Kong SAR
- P. R. China
| | - Chao Zou
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen 518055
- P. R. China
| | - Xiangguo Guan
- State Key Laboratory of Synthetic Chemistry
- HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry
- The University of Hong Kong
- Hong Kong SAR
- P. R. China
| | - Chen Yang
- State Key Laboratory of Synthetic Chemistry
- HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry
- The University of Hong Kong
- Hong Kong SAR
- P. R. China
| | - Wei Lu
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen 518055
- P. R. China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry
- HKU-CAS Joint Laboratory on New Materials, and Department of Chemistry
- The University of Hong Kong
- Hong Kong SAR
- P. R. China
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46
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Au VKM, Tsang DPK, Wong YC, Chan MY, Yam VWW. Synthesis of alkynylgold(III) complexes with bis-cyclometalating ligand derived from ethyl 2,6-diphenylisonicotinate and their structural, electrochemical, photo- and electroluminescence studies. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.02.037] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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47
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Yam VWW, Au VKM, Leung SYL. Light-Emitting Self-Assembled Materials Based on d8 and d10 Transition Metal Complexes. Chem Rev 2015; 115:7589-728. [DOI: 10.1021/acs.chemrev.5b00074] [Citation(s) in RCA: 1065] [Impact Index Per Article: 118.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vivian Wing-Wah Yam
- Institute of Molecular Functional
Materials (Areas of Excellence Scheme, University Grants Committee
(Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Vonika Ka-Man Au
- Institute of Molecular Functional
Materials (Areas of Excellence Scheme, University Grants Committee
(Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Sammual Yu-Lut Leung
- Institute of Molecular Functional
Materials (Areas of Excellence Scheme, University Grants Committee
(Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
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48
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Au VKM, Wu D, Yam VWW. Organic Memory Devices Based on a Bis-Cyclometalated Alkynylgold(III) Complex. J Am Chem Soc 2015; 137:4654-7. [DOI: 10.1021/jacs.5b02113] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vonika Ka-Man Au
- Institute of Molecular Functional
Materials (Areas of Excellence Scheme, University Grants Committee
(Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - Di Wu
- Institute of Molecular Functional
Materials (Areas of Excellence Scheme, University Grants Committee
(Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - Vivian Wing-Wah Yam
- Institute of Molecular Functional
Materials (Areas of Excellence Scheme, University Grants Committee
(Hong Kong)) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
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Lam ESH, Lam WH, Yam VWW. A Study on the Effect of Dianionic Tridentate Ligands on the Radiative and Nonradiative Processes for Gold(III) Alkynyl Systems by a Computational Approach. Inorg Chem 2015; 54:3624-30. [DOI: 10.1021/acs.inorgchem.5b00215] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Elizabeth Suk-Hang Lam
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Wai Han Lam
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Vivian Wing-Wah Yam
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
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Sanning J, Ewen PR, Stegemann L, Schmidt J, Daniliuc CG, Koch T, Doltsinis NL, Wegner D, Strassert CA. Rastertunnelspektroskopisch gesteuertes Design maßgeschneiderter tiefblauer Triplettemitter. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201407439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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