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- W1976667515 abstract "The synthesis and crystal structures of 4,5-bis[(triorganotin)thiolato]-1,3-dithiole-2-thione, (R 3 Sn) 2 (dmit), 1 , and 4,5-bis[(triorganotin)thiolato]-1,3-dithiole-2-one, (R 3 Sn) 2 (dmio), 2 , compounds are reported. Compounds, ( 1 or 2 : R = Ph or cyclohexyl, Cy), have been obtained from reaction of R 3 SnCl with Cs 2 dmit or Na 2 dmio. The presence of the two tin centres in ( 2 : R = Ph) is shown in the 13 C NMR spectrum by the couplings of both Sn atoms to the dmio olefinic carbons with J values of 29.4 and 24.7 Hz. The δ 119 Sn values for ( 1 : R = Ph) and ( 2 : R = Ph) differ by about 30 ppm, values being −20.7 and −50.1 ppm, respectively, in CDCl 3 solution. X-ray structure determinations for ( 1 : R = Ph) and ( 2 : R = Ph or Cy) reveal the compounds to have 4-coordinate, distorted tetrahedral tin centres. The dithiolato ligands, dmit and dmio, act as bridging ligands, in contrast to their chelating roles in R 2 Sn(dmit) and R 2 Sn(dmio). A further difference between R 2 Sn(dmit) and R 2 Sn(dmio), on one hand, and 1 and 2 on the other, is that intermolecular Sn–S and Sn–O interactions are absent in 1 and 2 . However, weak intermolecular hydrogen bonding interactions are found in ( 1 : R = Ph) [C–H⋯π] and in ( 2 : R = Ph) [C–H⋯π and C–H⋯O]." @default.
- W1976667515 created "2016-06-24" @default.
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- W1976667515 date "2006-04-01" @default.
- W1976667515 modified "2023-10-03" @default.
- W1976667515 title "4,5-Bis[(triorganotin)thiolato]-1,3-dithiole-2-thione, (R3Sn)2(dmit), 4,5-bis[(triorganotin)thiolato]-1,3-dithiole-2-one, (R3Sn)2(dmio), compounds: Crystal structures of (cyclohexyl3Sn)2(dmio), (Ph3Sn)2(dmit) and (Ph3Sn)2(dmio)" @default.
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- W1976667515 doi "https://doi.org/10.1016/j.jorganchem.2005.10.035" @default.
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