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Russian Journal of Coordination Chemistry
Article . 2023 . Peer-reviewed
License: Springer Nature TDM
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Structure and Synthesis of Dihalogenodicyanoaurate Complexes [Ph3PR][Au(CN)2Hal2], Hal = Cl, R = Me, СH2Ph; Hal = Br, R = cyclo-C6H11; Hal = I, R = Ph

Строение и синтез дигалогенодицианоауратных комплексов [Ph3PR][Au(CN)2Hal2], Hal = Cl, R = Me, СH2Ph; Hal = Br, R = цикло-C6H11; Hal = I, R = Ph
Authors: D. P. Shevchenko; A. E. Khabina;

Structure and Synthesis of Dihalogenodicyanoaurate Complexes [Ph3PR][Au(CN)2Hal2], Hal = Cl, R = Me, СH2Ph; Hal = Br, R = cyclo-C6H11; Hal = I, R = Ph

Abstract

Interaction of organyltriphenylphosphonium halides with potassium dihalogenodicyanoaurates in water followed by recrystallization of reaction products from acetonitrile or DMSO has been used to synthesize gold(III) ionic complexes [Ph3PMe][Au(CN)2Cl2] (1), [Ph3PCH2Ph][Au(CN)2Cl2] (2), [Ph3PC6H11-cyclo][Au(CN)2Br2] (3), and [Ph4P][Au(CN)2I2] (4), which have been structurally characterized by the X-ray analysis method (CIF files CCDC No. 1901681 (1), 1912903 (2), 1912919 (3), 2048146 (4)). According to the X-ray data crystals 1–4 consist of centrosymmetric square-planar [Au(CN)2Hal2]– anions (the Au–Hal average bond lengths are 2.417(3) Å (1), 2.280(2) Å (2), 2.4203(13) Å (3), and 2.6035(10) Å (4); the Au–C average bond lengths are 2.06(2) Å (1), 2.010(7) Å (2), 2.009(7) Å (3,) and 1.998(6) Å (4)); the phosphorus atoms in organyltriphenylphosphonium cations have a slightly distorted tetrahedral coordination (the P–C bond lengths are 1.782(9)-1.806(8) Å (1), 1.788(4)-1.813(5) Å (2), 1.790(5)-1.813(5) Å (3) and 1.793(6)-1.799(5) Å (4)). The structural organization in crystals 2–4 is caused by the interionic С–H∙∙∙N≡C hydrogen bonds (C–HPh∙∙∙N≡C 2.56 Å (2); C–HPh∙∙∙N≡C 2.43–2.59 Å, C–Hcyclohexyl∙∙∙N≡C 2.47 Å (3), C–HPh∙∙∙N≡C 2.63 Å (4)), while in crystals 1 no significant interionic contacts are observed.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
4
Top 10%
Average
Average
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