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- W2019900672 abstract "The tetrakis(alkylthio)-olefins C2(SR)4(R = Me or Et) react with [{PtCl2(PEt3)}2] in hot xylene to yield cis- and trans-[(Et3P)Cl[graphic omitted]tCl(PEt3)]; with C2(SEt)4 there is spectroscopic evidence for intermediates, cis- and trans-[(Et3P)Cl2[graphic omitted](RS)CC(SR)([graphic omitted]tCl2(PEt3)](R = Et). In contrast, the cyclic olefin [:[graphic omitted]]2 forms the SS″-bonded cis-[PtCl(PEt3)(olefin)][PtCl3(PEt3)]; similar behaviour is found with C2(NMe2)4 and o-C6H4(NMe2)2, the corresponding cations being [PtCl{C2(NMe2)4-NN″}(PEt3)]+(6) and [PtCl{o-C6H4(NMe2)2-NN′}(PEt3)]+, respectively. The salt [PtCl{C2(NMe2)4-NN″}(PEt3)][PtCl3(PEt3)] readily transforms into [C2(NMe2)4][PtIICl3(PEt3)]2 on dissolution in dimethylformamide. A single-crystal X-ray analysis of the title complex shows that it has approximate C2 symmetry with each platinum atom bound to a chelating ligand attached at one end by a thiolate sulphur atom and at the other by a thioether S atom; the average bond lengths are 2.25(1) and 2.33(1)Å, respectively. Interaction of Pt with the CC π orbitals is unlikely because the distance of closest approach is ca. 3.1 Å. The average Pt–P and Pt–Cl distances are 2.26(1) and 2.34(1)Å, respectively. Bond lengths [1.34(4)(CC) and 1.75(3)(CS)Å] in the 2,1,1-dithiolate ligand indicate essentially localised double and single bonds." @default.
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- W2019900672 title "Co-ordination chemistry of electron-rich poly(organosulphur) compounds. Part 2. Comparative data on reactions of di-µ-chloro-bis[chloro(triethylphosphine)platinum(<scp>II</scp>)], and the crystal and molecular structure of cis-µ-2,2-bis(methylthio)ethene-1,1-dithiolato-SS″ : S′S‴-bis[chloro(triethylphosphine)platinum(<scp>II</scp>)]" @default.
- W2019900672 doi "https://doi.org/10.1039/dt9790000434" @default.
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