Platinum complexes with non-symmetric fluorodithioethers: Molecular structures of cis-[PtCl2(CH3SCH2CH 2SRf)] (Rf = C6F5, C6H4F-3) and trans-[PtCl2(CH3SCH2CH 2SC6F5)2]

Journal of the Brazilian Chemical Society

Amaranta Ramírez²  José G. Alvarado¹  Sylvain Berns¹  Luís Ortiz-frade²  Ezequiel Huipe¹  Hugo Torrens² 

[1] ,Universidad Nacional Autónoma de México Facultad de Química Departamento de Física e Química TeóricaMéxico D.F. ,Mexico

关键词: fluorodithioetere;    platinum;    19F NMR;    X-ray diffractio;   

DOI  :  10.1590/S0103-50532005000700014

来源: SciELO

【 摘 要 】

This paper describes the synthesis and characterization of the non-symmetric ligands CH3SCH2CH2SRf (Rf = C6F5, C6HF4-4, C6H4F-2, C6H4F-3, C6H4F-4) as well as their platinum(II) derivatives cis-[PtCl2(CH3SCH2CH2SR f)] (Rf = C6F5, C6HF4-4, C6H4F-2, C6H4F-3, C6H4F-4) and trans-[PtCl2(CH3SCH2CH 2SRf)2] (Rf = C6F5, C6HF4-4). 19F NMR of these complexes show the presence of syn and anti isomers, consistent with a fast flipping of the metallacycle ring and a slow inversion of configuration at the dithioether sulfur atoms. The molecular and crystalline structures of the compounds cis-[PtCl2(CH3SCH2CH2SC 6F5)], cis-[PtCl2(CH3SCH2CH2SC 6H4F-3)] and trans-[PtCl2(CH3SCH2CH 2SC6F5)2], solved by X-ray diffraction are also described.

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