1
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Döring C, Jones PG. Crystal structures of five gold(I) complexes with methyl-piperidine ligands. Acta Crystallogr E Crystallogr Commun 2024; 80:157-165. [PMID: 38333141 PMCID: PMC10848987 DOI: 10.1107/s2056989023010940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 12/21/2023] [Indexed: 02/10/2024]
Abstract
In bis-(4-methyl-piperidine-κN)gold(I) chloride, [Au(C6H13N)2]Cl (1), the methyl groups are, as expected, equatorial at the piperidine ring, but the Au atom is axial; this is the case for all five structures reported here, as is the expected linear coordination at the Au atom. Hydrogen bonding of the form N-H⋯Cl-⋯H-N leads to inversion-symmetric dimers, which are further connected by C-H⋯Au contacts. Bis(4-methyl-piperidine-κN)gold(I) di-chlorido-aurate(I), [Au(C6H13N)2][AuCl2] (2), also forms inversion-symmetric dimers; these involve aurophilic inter-actions and three-centre hydrogen bonds of the form NH(⋯Cl)2. Bis(4-methyl-piperidine-κN)gold(I) di-bromido-aurate(I), [Au(C6H13N)2][AuBr2] (3), is isotypic to 2. The 1:1 adduct chlorido-(4-methyl-piperidine-κN)gold(I) bis-(4-methyl-piperidine-κN)gold(I) chloride, [Au(C6H13N)2]Cl·[AuCl(C6H13N)] (4), crystallizes as its di-chloro-methane solvate. The asymmetric unit contains two formula units, in each of which the chloride anion accepts a hydrogen bond from the cation and from the neutral mol-ecule, and the two Au atoms are linked via an aurophilic inter-action. A further hydrogen bond leads to inversion-symmetric dimers. The asymmetric unit of bis-(2-methyl-piperidine-κN)gold(I) chloride, [Au(C6H13N)2]Cl (5), contains two 'half' cations, in which the Au atoms lie on twofold axes, and a chloride ion on a general position. Within each cation, the relative configurations at the atoms N and C2 (which bears the methyl substituent) are R,S. The twofold-symmetric dimer involves two N-H⋯Cl-⋯H-N units and an aurophilic contact between the two Au atoms.
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Affiliation(s)
- Cindy Döring
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
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2
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Zhu SY, He WJ, Shen GC, Bai ZQ, Song FF, He G, Wang H, Chen G. Ligand-Promoted Iron-Catalyzed Nitrene Transfer for the Synthesis of Hydrazines and Triazanes through N-Amidation of Arylamines. Angew Chem Int Ed Engl 2024; 63:e202312465. [PMID: 37997539 DOI: 10.1002/anie.202312465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 11/25/2023]
Abstract
Herein, we report that bulky alkylphosphines such as PtBu3 can switch the roles from actor to spectator ligands to promote the FeCl2 -catalyzed N-amidation reaction of arylamines with dioxazolones, giving hydrazides in high efficiency and chemoselectivity. Mechanistic studies indicated that the phosphine ligands could facilitate the decarboxylation of dioxazolones on the Fe center, and the hydrogen bonding interactions between the arylamines and the ligands on Fe nitrenoid intermediates might play a role in modulating the delicate interplay between the phosphine ligand, arylamine, and acyl nitrene N, favoring N-N coupling over N-P coupling. The new ligand-promoted N-amidation protocols offer a convenient way to access various challenging triazane compounds via double or sequential N-amidation of primary arylamines.
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Affiliation(s)
- Shi-Yang Zhu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Wen-Ji He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Guan-Chi Shen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Zi-Qian Bai
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Fang-Fang Song
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Gang He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Hao Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Gong Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
- Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
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3
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Döring C, Jones PG. Crystal structures of the isotypic complexes bis-(morpholine)-gold(I) chloride and bis-(morpholine)-gold(I) bromide. Acta Crystallogr E Crystallogr Commun 2023; 79:1161-1165. [PMID: 38313121 PMCID: PMC10833401 DOI: 10.1107/s2056989023009702] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 11/07/2023] [Indexed: 02/06/2024]
Abstract
The compounds bis-(morpholine-κN)gold(I) chloride, [Au(C4H9NO)2]Cl, 1, and bis-(morpholine-κN)gold(I) bromide, [Au(C4H9NO)2]Br, 2, crystallize isotypically in space group C2/c with Z = 4. The gold atoms, which are axially positioned at the morpholine rings, lie on inversion centres (so that the N-Au-N coordination is exactly linear) and the halide anions on twofold axes. The residues are connected by a classical hydrogen bond N-H⋯halide and by a short gold⋯halide contact to form a layer structure parallel to the bc plane. The morpholine oxygen atom is not involved in classical hydrogen bonding.
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Affiliation(s)
- Cindy Döring
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
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4
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Döring C, Jones PG. Crystal structures of five halido gold complexes involving piperidine or pyrrolidine as ligands or (protonated) as cations. Acta Crystallogr E Crystallogr Commun 2023; 79:1017-1027. [PMID: 37936840 PMCID: PMC10626954 DOI: 10.1107/s205698902300854x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/27/2023] [Indexed: 11/09/2023]
Abstract
In bromido-(pyrrolidine-κN)gold(I) bis-(pyrrolidine-κN)gold(I) bromide, [AuBr(pyr)]·[Au(pyr)2]Br (pyr = pyrrolidine, C4H9N), 2, alternating [AuBr(pyr)] mol-ecules and [Au(pyr)2]+ cations are connected by aurophilic contacts to form infinite chains of residues parallel to the b axis. The chains are cross-linked by three N-H⋯Br- hydrogen bonds and an Au⋯Br contact to form a layer structure parallel to the ab plane. Tri-chlorido-(piperidine-κN)gold(III), [AuCl3(pip)] (pip = piperidine, C5H11N), 3, consists of mol-ecules with the expected square-planar coordination at the gold atom, which are connected by an N-H⋯Cl hydrogen bond and an Au⋯Cl contact to form a layer structure parallel to the ac plane. The structures of bis-(piperidinium) tetra-chlorido-aurate(III) chloride, (pipH)2[AuCl4]Cl, 4, and bis-(pyrrolidinium) tetra-bromido-aurate(III) bromide, (pyrH)2[AuBr4]Br, 6, are closely related but not isotypic. Compound 6 crystallizes in space group Ibam; the Au and two Br atoms of the anion lie in the mirror plane x, y, 0, whereas the bromide ions occupy special positions 0, 0.5, 0 and 0, 0.5, 0.25, with site symmetry 2/m. The NH2 group forms a hydrogen bond to one bromide ion, and also a three-centre hydrogen bond to the other bromide atom and to a metal-bonded Br atom. The packing involves chains of hydrogen-bonded pyrrolidinium and bromide ions parallel to the c axis, combined with a layer structure of [AuBr4]- and bromide anions, parallel to the ab plane and involving Au⋯Br and Br⋯Br contacts. Compound 4, however, crystallizes pseudosymmetrically in space group Iba2; two chlorine atoms of the anion lie on the twofold axis 0.5, 0.5, z, and there are two independent cations. The packing is closely similar to that of 6, but there are no N-H⋯Cl hydrogen bonds to metal-bonded chlorines. The contact distances Au⋯Cl are appreciably longer than their Au⋯Br counterparts in 6, whereas the Cl⋯Cl contact is much shorter than Br⋯Br in 6. Tri-bromido-(piperidine-κN)gold(III) crystallizes as its di-chloro-methane solvate, [AuBr3(pip)]·CH2Cl2, 7. It too displays a square-planar coordination at the gold atom. The packing involves hydrogen bonds N-H⋯Br, stacking of neighbouring AuBr3 units by Au⋯Br contacts, and a short Br⋯Br contact; these combine to form a layer structure parallel to the ac plane.
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Affiliation(s)
- Cindy Döring
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
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Strey M, Döring C, Jones PG. Aminkomplexe des Goldes, Teil 10: Gold(I)-thiocyanat-Komplexe mit Tetrahydrothiophen, Dimethylsulfid, Ammoniak, Aminen und Azaaromatena. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2018. [DOI: 10.1515/znb-2017-0204] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The reaction of (tht)AuCl (tht=tetrahydrothiophene) with KSCN leads to a mixture of gold(I) thiocyanate AuSCN and [(tht)2Au]+ [Au(SCN)2]−
1. The compounds were separated and the X-ray structure of 1 confirmed as an alternating chain of anions and cations linked by aurophilic contacts. Either pure AuSCN or the mixture was used to synthesize further derivatives of AuSCN, all of which were investigated by X-ray methods. Most products were of limited stability when removed from their mother liquor. The dimethyl sulfide derivative 2 is molecular, (Me2S)AuSCN; the ammonia derivative 3 is ionic, [(NH3)2Au]+ [Au(SCN)2]−. The reaction with 2,2-bipyridyl leads (presumably by involvement of the solvent or of atmospheric moisture) to [bipy-H]+ [Au(SCN)2]−
13. All other products involve amines or azaaromatics as ligands L. The primary amine tert-butylamine forms an ionic product [L2Au]+ (SCN)−
4. The secondary amines piperidine and dibenzylamine lead to molecular structures LAuSCN (5 and 6), whereas pyridine-based azaaromatics lead to ionic products [L2Au]+ [Au(SCN)2]− with L=2-, 3- or 4-picoline (7–9), 2,4-, 3,4- or 3,5-lutidine (10–12). The 3,4-lutidine derivative 11 forms two polymorphs that tend to form mixed crystals. The dominant features of the crystal packing for 7–12 are short aurophilic interactions.
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Affiliation(s)
- Mark Strey
- Institut für Anorganische und Analytische Chemie , Technische Universität Braunschweig , Hagenring 30 , D-38106 Braunschweig , Germany
| | - Cindy Döring
- Institut für Anorganische und Analytische Chemie , Technische Universität Braunschweig , Hagenring 30 , D-38106 Braunschweig , Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie , Technische Universität Braunschweig , Hagenring 30 , D-38106 Braunschweig , Germany
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6
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Aminkomplexe des Goldes, Teil 9: Gold(I)-halogenid-Komplexe mit primären und azyklischen sekundären Aminen und ihre Oxidation zu Gold(III)-Derivaten. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2018. [DOI: 10.1515/znb-2017-0182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The reaction of (tht)AuX (X=Cl or Br; tht=tetrahydrothiophene) with various primary amines L leads to products of the form [L2Au]+X−. Packing diagrams of the corresponding structures are dominated by N–H···X hydrogen bonds and (in some cases) aurophilic contacts. The cyclohexylamine derivative was already known as its dichloromethane ⅔-solvate; we have isolated the solvent-free compound and its pentane ¼-solvate, which all show different packing patterns. With acyclic secondary amines, the products are more varied; LAuX and [L2Au]+[AuX2]− were also found. These gold(I) products were generally formed in satisfactory quantities. The attempted oxidation to Au(III) derivatives with PhICl2 or Br2 proved impossible for the primary amine derivatives [although isopropylamine-trichloridogold(III) was obtained unexpectedly from the corresponding cyanide] and unsatisfactory for the secondary amine derivatives. Products LAuX3 and [L2AuX2]+[AuX4]− were identified but were formed in disappointing yields. In isolated cases protonated products (LH)+[AuCl4]−, (LH+)3[AuCl4]−(Cl−)2 or [(Et2N)2CH]+[AuBr4]− were formed, presumably by involvement of the dichloromethane solvent and/or adventitious water. Here also the yields were poor, and some products arose as mixtures. Direct reaction of amines with AuCl3 or (tht)AuX3 was also unsuccessful. All products were characterized by X-ray structure analysis.
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7
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Kirichkov MV, Guda AA, Budnyk AP, Lastovina TA, Bugaev AL, Shapovalov VV, Rusalev YV, Chernyshev AV, Soldatov AV. In situ analysis of the formation steps of gold nanoparticles by oleylamine reduction. J STRUCT CHEM+ 2017. [DOI: 10.1134/s0022476617070186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Salvador-Gil D, Ortego L, Herrera RP, Marzo I, Gimeno MC. Highly active group 11 metal complexes with α-hydrazidophosphonate ligands. Dalton Trans 2017; 46:13745-13755. [DOI: 10.1039/c7dt02743e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Unprecedented α-hydrazidophosphonate group 11 metal complexes have been prepared, with various coordination modes of ligands to metal atoms. They present an excellent cytotoxic activity in HeLa (cervical carcinoma) and A549 (lung carcinoma) cell lines, with IC50values among the lowest found in silver or copper complexes.
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Affiliation(s)
- Daniel Salvador-Gil
- Departamento de Química Inorgánica
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Lourdes Ortego
- Departamento de Química Inorgánica
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Raquel P. Herrera
- Laboratorio de Organocatálisis Asimétrica. Departamento de Química Orgánica
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Isabel Marzo
- Departamento de Bioquímica y Biología Molecular
- Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - M. Concepción Gimeno
- Departamento de Química Inorgánica
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
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9
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Afanas’eva VA, Glinskaya LA, Korol’kov IV. Secondary interactions in the crystal structure of the iminate amine gold(III) complex [Au(C9H19N4)]I2. RUSS J COORD CHEM+ 2012. [DOI: 10.1134/s1070328412070019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Crosbie E, Kennedy AR, Mulvey RE, Robertson SD. After-effects of lithium-mediated alumination of 3-iodoanisole: isolation of molecular salt elimination and trapped-benzyne products. Dalton Trans 2012; 41:1832-9. [DOI: 10.1039/c2dt11893a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Canovese L, Visentin F, Levi C, Bertolasi V. Synthesis and Mechanism of Formation of Novel NHC−NAC Bis-Carbene Complexes of Gold(I). Organometallics 2011. [DOI: 10.1021/om101057q] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | | | - Carlo Levi
- Dipartimento di Chimica, Università Ca’ Foscari, Venice, Italy
| | - Valerio Bertolasi
- Dipartimento di Chimica and Centro di Strutturistica Diffrattometrica Università di Ferrara, Ferrara, Italy
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12
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Zeng J, Ma Y, Jeong U, Xia Y. AuI: an alternative and potentially better precursor than AuIII for the synthesis of Au nanostructures. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b922571d] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Elbjeirami O, Rashdan MD, Nesterov V, Rawashdeh-Omary MA. Structure and luminescence properties of a well-known macrometallocyclic trinuclear Au(i) complex and its adduct with a perfluorinated fluorophore showing cooperative anisotropic supramolecular interactions. Dalton Trans 2010; 39:9465-8. [DOI: 10.1039/c0dt00736f] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Burini A, Galassi R, Ricci S, Bachechi F, Mohamed AA, Fackler JP. Mono and Tetranuclear Gold(I) Complexes of Tris(1-benzylimidazole-2-yl)phosphine. Inorg Chem 2009; 49:513-8. [DOI: 10.1021/ic901562d] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alfredo Burini
- Dipartimento di Scienze Chimiche, Università di Camerino, via S. Agostino 1, I-62032 Camerino, Italy
| | - Rossana Galassi
- Dipartimento di Scienze Chimiche, Università di Camerino, via S. Agostino 1, I-62032 Camerino, Italy
| | - Simone Ricci
- Dipartimento di Scienze Chimiche, Università di Camerino, via S. Agostino 1, I-62032 Camerino, Italy
| | - Fiorella Bachechi
- Istituto di Cristallografia, CNR, Area della Ricerca di Roma, C.P. 10, I-00016 Monterotondo St., Roma, Italy
| | - Ahmed A. Mohamed
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255
| | - John P. Fackler
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255
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15
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Sharma R, Sharma RP, Venugopalan P, Quirós M, Salas JM, Yu J, Du Y. Capture of aromatic carboxylate anion through second sphere coordination: Topological complementarity of [cis-Co(en)2(N3)2]+ and ions. J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2007.10.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Lu X, Tuan HY, Korgel BA, Xia Y. Facile synthesis of gold nanoparticles with narrow size distribution by using AuCl or AuBr as the precursor. Chemistry 2008; 14:1584-91. [PMID: 18058964 DOI: 10.1002/chem.200701570] [Citation(s) in RCA: 123] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Gold(I) halides, including AuCl and AuBr, were employed for the first time as precursors in the synthesis of Au nanoparticles. The synthesis was accomplished by dissolving Au(I) halides in chloroform in the presence of alkylamines, followed by decomposition at 60 degrees C. The relative low stability of the Au(I) halides and there derivatives eliminated the need for a reducing agent, which is usually required for Au(III)-based precursors to generate Au nanoparticles. Controlled growth of Au nanoparticles with a narrow size distribution was achieved when AuCl and oleylamine were used for the synthesis. FTIR and mass spectra revealed that a complex, [AuCl(oleylamine)], was formed through coordination between oleylamine and AuCl. Thermolysis of the complex in chloroform led to the formation of dioleylamine and Au nanoparticles. When oleylamine was replaced with octadecylamine, much larger nanoparticles were obtained due to the lower stability of [AuCl(octadecylamine)] complex relative to [AuCl(oleylamine)]. Au nanoparticles can also be prepared from AuBr through thermolysis of the [AuBr(oleylamine)] complex. Due to the oxidative etching effect caused by Br(-), the nanoparticles obtained from AuBr exhibited an aspect ratio of 1.28, in contrast to 1.0 for the particles made from AuCl. Compared to the existing methods for preparing Au nanoparticles through the reduction of Au(III) compounds, this new approach based on Au(I) halides offers great flexibility in terms of size control.
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Affiliation(s)
- Xianmao Lu
- Department of Biomedical Engineering, Washington University in St. Louis, Saint Louis, MO 63130, USA
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17
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Lin JCY, Tang SS, Vasam CS, You WC, Ho TW, Huang CH, Sun BJ, Huang CY, Lee CS, Hwang WS, Chang AHH, Lin IJB. Structural, Photophysical, and Catalytic Properties of Au(I) Complexes with 4-Substituted Pyridines. Inorg Chem 2008; 47:2543-51. [DOI: 10.1021/ic701872f] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- J. C. Y. Lin
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan, 97401, and Department of Chemistry, Fu Jen Catholic University, Taipei, Taiwan, 24205
| | - S. S. Tang
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan, 97401, and Department of Chemistry, Fu Jen Catholic University, Taipei, Taiwan, 24205
| | - C. Sekhar Vasam
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan, 97401, and Department of Chemistry, Fu Jen Catholic University, Taipei, Taiwan, 24205
| | - W. C. You
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan, 97401, and Department of Chemistry, Fu Jen Catholic University, Taipei, Taiwan, 24205
| | - T. W. Ho
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan, 97401, and Department of Chemistry, Fu Jen Catholic University, Taipei, Taiwan, 24205
| | - C. H. Huang
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan, 97401, and Department of Chemistry, Fu Jen Catholic University, Taipei, Taiwan, 24205
| | - B. J. Sun
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan, 97401, and Department of Chemistry, Fu Jen Catholic University, Taipei, Taiwan, 24205
| | - C. Y. Huang
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan, 97401, and Department of Chemistry, Fu Jen Catholic University, Taipei, Taiwan, 24205
| | - C. S. Lee
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan, 97401, and Department of Chemistry, Fu Jen Catholic University, Taipei, Taiwan, 24205
| | - W. S. Hwang
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan, 97401, and Department of Chemistry, Fu Jen Catholic University, Taipei, Taiwan, 24205
| | - A. H. H. Chang
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan, 97401, and Department of Chemistry, Fu Jen Catholic University, Taipei, Taiwan, 24205
| | - Ivan J. B. Lin
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan, 97401, and Department of Chemistry, Fu Jen Catholic University, Taipei, Taiwan, 24205
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18
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Hsu SJ, Hsu KM, Leong MK, Lin IJB. Au(i)-benzimidazole/imidazole complexes. Liquid crystals and nanomaterials. Dalton Trans 2008:1924-31. [DOI: 10.1039/b717787a] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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19
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Abstract
Photocatalytic water splitting is a challenging reaction because it is an ultimate solution to energy and environmental issues. Recently, many new powdered photocatalysts for water splitting have been developed. For example, a NiO (0.2 wt %)/NaTaO3:La (2 %) photocatalyst with a 4.1-eV band gap showed high activity for water splitting into H2 and O2 with an apparent quantum yield of 56 % at 270 nm. Overall water splitting under visible light irradiation has been achieved by construction of a Z-scheme photocatalysis system employing visible-light-driven photocatalysts, Ru/SrTiO3:Rh and BiVO4 for H2 and O2 evolution, and an Fe3+/Fe2+ redox couple as an electron relay. Moreover, highly efficient sulfide photocatalysts for solar hydrogen production in the presence of electron donors were developed by making solid solutions of ZnS with AgInS2 and CuInS2 of narrow band gap semiconductors. Thus, the database of powdered photocatalysts for water splitting has become plentiful.
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Pintado-Alba A, de la Riva H, Nieuwhuyzen M, Bautista D, Raithby PR, Sparkes HA, Teat SJ, López-de-Luzuriaga JM, Lagunas MC. Effects of diphosphine structure on aurophilicity and luminescence in Au(i) complexes. Dalton Trans 2004:3459-67. [PMID: 15510263 DOI: 10.1039/b410619a] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effects of diphosphine flexibility and bite angle on the structures and luminescence properties of Au(I) complexes have been investigated. A range of diphosphines based on heteroaromatic backbones [bis(2-diphenylphosphino)phenylether (dpephos), 9,9-dimethyl-4,5-bis(diphenylphosphino)xanthene (xantphos), and 4,6-bis(diphenylphosphino)dibenzofuran (dbfphos)] has been used to prepare mono- and digold derivatives. A clear relationship between the presence of aurophilic contacts and the emission properties of dinuclear complexes has been observed, with one of the complexes studied, [Au(2)Cl(2)(micro-xantphos)], exhibiting luminescence thermochromism.
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Wiseman MR, Marsh PA, Bishop PT, Brisdon BJ, Mahon MF. Homoleptic Gold Thiolate Catenanes. J Am Chem Soc 2000. [DOI: 10.1021/ja0011156] [Citation(s) in RCA: 103] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew R. Wiseman
- Department of Chemistry, University of Bath Bath BA2 7AY, UK Johnson Matthey Technology Centre Sonning Common, Reading RG4 9NH, UK
| | - Patsy A. Marsh
- Department of Chemistry, University of Bath Bath BA2 7AY, UK Johnson Matthey Technology Centre Sonning Common, Reading RG4 9NH, UK
| | - Peter T. Bishop
- Department of Chemistry, University of Bath Bath BA2 7AY, UK Johnson Matthey Technology Centre Sonning Common, Reading RG4 9NH, UK
| | - Brian J. Brisdon
- Department of Chemistry, University of Bath Bath BA2 7AY, UK Johnson Matthey Technology Centre Sonning Common, Reading RG4 9NH, UK
| | - Mary F. Mahon
- Department of Chemistry, University of Bath Bath BA2 7AY, UK Johnson Matthey Technology Centre Sonning Common, Reading RG4 9NH, UK
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Formation and structural properties of salicylaldiminato complexes of zirconium and titanium. Inorganica Chim Acta 2000. [DOI: 10.1016/s0020-1693(99)00573-3] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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