Abstract
Abstract: The chemisorption binding of gold(III) by freshly precipitated binuclear zinc dithiocarbamates [Zn2(S2CNR2)4] from solutions in 2 M HCl makes it possible to obtain heteroligand complexes [Au(S2CNR2)Cl2]: R = CH3 (I), iso-C3H7 (II); R2 = (CH2)6 (III). The structural organization of complexes I, II, and III is determined by X-ray diffraction analysis (CIF files CCDC no. 1813107, 1813369, and 1813108, respectively). The distorted square–planar structure of the cis-[AuS2Cl2] chromophores shows the low-spin dsp2-hybrid state of the central gold atom. Pairwise secondary interactions Au⋅⋅⋅S between the adjacent molecules in complexes I and III result in the building of zigzag polymer chains (⋅⋅⋅[Au{S2CN(CH3)2}Cl2]⋅⋅⋅)n and binuclear aggregates [Au{S2CN(CH2)6}Cl2]2 at the supramolecular level. Complex II is presented by discrete molecules [Au{S2CN(iso-C3H7)2}Cl2]. According to the simultaneous thermal analysis data, the single final product of the thermolysis of compounds I–III is reduced elemental gold.
Original language | English |
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Pages (from-to) | 604-612 |
Number of pages | 9 |
Journal | Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya |
Volume | 44 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Oct 2018 |
Keywords
- complex-chemisorbents
- forms of gold binding from solutions
- heteroleptic dithiocarbamato–chlorido gold(III) complexes
- secondary interactions Au⋅⋅⋅S
- simultaneous thermal analysis
- supramolecular self-organization
- secondary interactions Au center dot center dot center dot S
- ANTICANCER AGENTS
- CRYSTAL-STRUCTURE
- ELECTRON-PARAMAGNETIC-RES
- GOLD COMPLEXES
- heteroleptic dithiocarbamato-chlorido gold(III) complexes
- ZINC
- PROTEASOME
- POLYNUCLEAR
- CYTOTOXICITY
- BINDING
- DERIVATIVES