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Grabowsky S, White AH, Healy PC, Lapere KM, Ng SW, Skelton BW, Wild DA, Bowmaker GA, Hanna JV. Solid-State NMR, X-Ray Diffraction, and Theoretical Studies of Neutral Mononuclear Molecular Bis(triphenylphosphine)silver(I) Mono-Carboxylate and -Nitrate Systems. Aust J Chem 2020. [DOI: 10.1071/ch19616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Neutral mononuclear molecular silver(i) carboxylate complexes of the form [(Ph3P)2Ag(O2XY)] with O2XY=O2CCH2Ph, O2CCHPh2, O2CC(CH3)3, O2CCH2C(CH3)3, and O2CCF3 (compounds 1–4 and 5β) have been investigated in the solid state using single-crystal X-ray structure determinations, 1D 31P CPMAS NMR and 2D 31P–31P CPCOSY NMR measurements, and ab initio computational modelling. The results show that these complexes contain P2AgO2 molecular cores with four-coordinate silver in which the carboxylate ligands are weakly bound to the silver atoms via the two oxygen atoms giving rise to unsymmetrical chelate units. Crystal structure determinations and solid-state NMR spectra have also been analysed for the mononuclear molecular silver(i) nitrate complex [(Ph3P)2Ag(O2NO)] (9α) and two polymorphs of its toluene monosolvate (11α, β). In 9α, the two PPh3 ligands are of the same chirality, whereas in 11α, β, they are opposed. The crystalline environments in the polymorphs have been explored by way of Hirshfeld surface analyses, after quantum-mechanical isolated-molecule calculations had shown that although the molecular energies of the experimental geometries of 9α, and 11α, β are significantly different from each other and from the energies of the optimized geometries, the latter, in contrast, do not differ significantly from each other despite the conformational isomerism. It has further been shown using 9α as an example that the energy dependence on variation of the P–Ag–P angle over a range of ~15° is only ~5 kJ mol−1. All this indicates that the forces arising from crystal packing result in significant perturbations in the experimental geometries, but do not alter the stereoisomerism caused by the donor atom array around the Ag atom. In the NMR study, a strong inverse correlation has been found between 1J(107/109Ag,31P) and the Ag–P bond length across all carboxylate and nitrate compounds.
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Zhou MM, Jiang BL, Ni SF, Dang L. Lewis Acidic PSbP Pincer Ligand in Pt-Catalyzed 1,6-Enyne Cycloisomerization: A Theoretical Study. J Org Chem 2019; 84:9454-9459. [PMID: 31283220 DOI: 10.1021/acs.joc.9b00794] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The progressively improved heterobimetallic antimony transition metal complex PSbP-Pt (I1) provides superior activity in catalyzed 1,6-enyne cycloisomerization. Our DFT calculations demonstrate that the noninnocent character of the antimony ligand enhances the self-activation of the catalyst precursor through a substrate-aided intramolecular chloride migration, which triggers subsequent reaction. Designed alternative redox noninnocent active species with strong electron-withdrawing groups also show promising catalytic ability due to an electron-deficient antimony ligand, which lowers the typical reaction barrier for the cycloisomerization of 1,6-enyne.
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Affiliation(s)
- Miao-Miao Zhou
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province , Shantou University , Shantou , Guangdong 515063 , P.R. China
| | - Bei-Lei Jiang
- Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , P.R. China
| | - Shao-Fei Ni
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province , Shantou University , Shantou , Guangdong 515063 , P.R. China
| | - Li Dang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province , Shantou University , Shantou , Guangdong 515063 , P.R. China.,Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , P.R. China
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Sergienko VS, Martsinko EE, Seifullina II, Churakov AV, Chebanenko EA. Synthesis and the crystal and molecular structure of the silver(I)–germanium(IV) polymeric complex with citrate anions {[Ag2Ge(HCit)2(H2O)2] ∙ 2H2O} n. CRYSTALLOGR REP+ 2016. [DOI: 10.1134/s106377451602019x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Srungavruksham NK, Baskar V. Assembling anionic Sb(v)/(iii) containing polyoxostibonates stabilized by triphenyltellurium cations. Dalton Trans 2015; 44:6358-62. [DOI: 10.1039/c4dt03319a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mixed valent polyoxostibonates ligated by tetraorganoditelluroxane and stabilized by weak interactions from triaryltellurium cations are presented. Successive reactions like reduction, dearylation and disproportionation have been observed en route to the formation of these novel POMs.
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Huta B, Lensboeur JJ, Lowe AJ, Zubieta J, Doyle RP. Metal-citrate complex uptake and CitMHS transporters: From coordination chemistry to possible vaccine development. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.06.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bowmaker GA, Hanna JV, Skelton BW, White AH. Mechanochemical and solution synthesis, and crystal structures and IR and solid-state (CPMAS) NMR spectroscopy of some bis(triphenylphosphine)silver(i) mono- and di-hydrogencitrate systems. Dalton Trans 2012; 41:5409-17. [DOI: 10.1039/c2dt12452a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Gunari P, s/o Krishnasamy S, Bai SQ, Hor TSA. Crystallographic identification of an unusual homoleptic palladium citrate [Na(OH2)6]·{[Na3(OH2)8]3[NaPd3(C6H4O7)3]2}·(H2O) stabilised by intermetallic aggregation with sodium and heavy hydration. Dalton Trans 2010; 39:9462-4. [DOI: 10.1039/c0dt00273a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Gong Y, Li H, Li YG, Wang YH, Tang W, Hu CW. Speciation and transformation in the synthesis of Cu4(im)4(C4O3H6)2(NO2)4(H2O)4 and [(phen)Cu(C2O4)(H2O)] · H2O. J COORD CHEM 2007. [DOI: 10.1080/00958970600773937] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Yun Gong
- a Department of Chemistry , Beijing Institute of Technology , Beijing, 100081, P.R. China
| | - Hui Li
- a Department of Chemistry , Beijing Institute of Technology , Beijing, 100081, P.R. China
| | - Yang Guang Li
- b Institute of Polyoxometalate Chemistry , Northeast Normal University , Changchun, 130024, P.R. China
| | - Yong Hui Wang
- b Institute of Polyoxometalate Chemistry , Northeast Normal University , Changchun, 130024, P.R. China
| | - Wang Tang
- a Department of Chemistry , Beijing Institute of Technology , Beijing, 100081, P.R. China
| | - Chang Wen Hu
- a Department of Chemistry , Beijing Institute of Technology , Beijing, 100081, P.R. China
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Holloway CE, Nevin WA, Melnik M. REVIEW: HETEROMETALLIC SILVER COMPOUNDS; CLASSIFICATION AND ANALYSIS OF CRYSTALLOGRAPHIC AND STRUCTURAL DATA. J COORD CHEM 2006. [DOI: 10.1080/00958979408024215] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Clive E. Holloway
- a Department of Chemistry , York University , 4700 Keele St., North York, Ontario, M3J 1P3, Canada
| | - W. Andrew Nevin
- a Department of Chemistry , York University , 4700 Keele St., North York, Ontario, M3J 1P3, Canada
- c Central Research Laboratories, Kaneka Corporation , 2-80, 1-Chome, Yoshida-Cho, Hyogo-Ku, Kobe, Japan , 652
| | - Milan Melnik
- b Department of Inorganic Chemistry , Slovak Technical University , 81237, Bratislava, Slovak Republic
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Homo- and hetero-metallic manganese citrate complexes: Syntheses, crystal structures and magnetic properties. Polyhedron 2005. [DOI: 10.1016/j.poly.2005.04.031] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Akrivos PD, Katsikis HJ, Koumoutsi A. Low valent coinage metal coordination compounds with group 15, 16 and 17 donors. Coord Chem Rev 1997. [DOI: 10.1016/s0010-8545(97)90143-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Preparation and crystal structure of polymeric ammonium silver(I) citrate hydrate, {NH4[Ag2(C6H5O7)(H2O)]}n. Polyhedron 1993. [DOI: 10.1016/s0277-5387(00)84988-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Smith G, Sagatys DS, Bott RC, Lynch DE, Kennard CH. Group 15 complexes with carboxylic acids—VI. Preparation and crystal structures of potassium antimony(III) citrate, {[K2Sb4(citrate)8(H2O)2]} and lithium antimony(III) citrate, {[LiSb(citrate)2(H2O)]·2H2O}. Polyhedron 1993. [DOI: 10.1016/s0277-5387(00)84588-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Smith G, Sagatys DS, Bott RC, Lynch DE, Kennard CH. Crystallographic evidence for the presence of both (2−) and (3−) citrate species in a mixed-metal complex, [CuSb(C6H6O72−)(C6H5O7 3−)(H2O)2]·2.5H2O. Polyhedron 1992. [DOI: 10.1016/s0277-5387(00)83319-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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