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Syntheses and Crystal Structure of Six-coordinated Diorgnotin Complexes with 2, 5-Dimercapto-4-phenyl-1, 3,4-thiodiazoIe

✍ Scribed by Chun-Lin Ma; Feng Li; Ru-Fen Zhang; Da-Qi Wang

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
473 KB
Volume
21
Category
Article
ISSN
0256-7660

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✦ Synopsis

Abstract

The reactions of diorganotin dichloride [Ph~2~SnCl~2~, (PhCH~2~)~2~‐SnCl~2~ or (n‐Bu)~2~SnCl~2~] with potassium salt of 2, 5‐dimercapto‐4‐phenyl‐1, 3, 4‐thiodiazole gave complexes R~2~Sn (S~3~N~2~C~8~H~5~)~2~ (4: R = Ph; 5: R = PhCH~2~ and 6: R = n‐Bu), respectively. Characterizations were carried out for all complexes by IR, ^1^H NMR spectra and X‐ray crystallography analysis. Including the Sn…︁N interaction, the three complexes all have six‐coordinated distorted octahedral geometry. Based on the requence of stereochemical constraint sequence, phenyl≈benzyl > n‐butyl, the less the effect of the stereochemical constraint of R groups, the shorter the Sn…︁N length. In complexes 5 and 6, there exist S…︁S weak intra‐molecular interactions, through which the complexes are dissociated into loose 2D polymers. All three complexes show antitumour activity in bioactivity measurements.

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