Reactions of Carbonylchlorogold(I) with Thiolates and Thiols. Crystal and Molecular Structures of t>, , 42 and 2 (L=1,4,7,10,13-pentaoxacyclopentadecane)

DOI: 10.1039/DT9950003917

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 3917 - 3924 (1995)

Update date:2022-08-04

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Authors:

Dell'Amico, Daniela Belli

Calderazzo, Fausto

Pasqualetti, Nicola

Huebner, Rainer

Maichle-Moessmer, Caecilia

Straehle, Joachim

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Article abstract of DOI:10.1039/DT9950003917

By the reaction of with the thiols RSH (R=Bu^t, C6H3Me2-2,6 or C6F5) amorphous gold(I) thiolates Au(SR) were obtained.With 2,6-dimethylbenzenethiolate under CO at atmospheric pressure in CH2Cl2 as solvent, gold metal and RSSR were formed, while with H2S amorphous Au2S was the product.The reaction of with t> in 1:1 ratio yielded t> 1 and 2 (15-crown-5=1,4,7,10,13-pentaoxacyclopentadecane).The crystal structure of 1 revealed that the anionic part contains three AuCl groups co-ordinated to the Bu^tS^- ligand forming a tetrahedral arrangement around the sulfur.The ^- anions in 2 are co-ordinated through the chlorine atoms to two ⁺ cations; thus, the sodium cation has a distorted pentagonal-pyramidal co-ordination to five oxygen atoms of the crown ether with the axial position occupied by the chlorine atoms of the AuCl2^- anion.The reaction of with t> in 3:1 molar ratio afforded the mixed-valence Au^I-Au^III complexes 42(Au4Cl6S2> 3 and 2 4.Their crystal structures revealed that in the ^2- anion two AuCl2 units are connected by the sulfur atoms of two SAuCl groups forming a centrosymmetric planar Cl2Au(μ-S)2AuCl2 skeleton.The structure of 3 also contains linear ^- anions.

Full text of DOI:10.1039/DT9950003917

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