Organtin complexes of 2,5‐dithiobiurea (H2dtbu): The crystal structures of (Ph3Sn)2(dtbu) and [(n‐Bu)2SnCl]2(dtbu)

A series of organotin(IV) complexes of two types, R₃Sn]₂(dtbu) (R = PhCH₂ 1 , Ph 2 , n‐Bu 3 , H₂dtbu = 2,5‐dithiobiurea), R₂SnCl]₂(dtbu) (R = PhCH₂ 4 , Ph 5 , n‐Bu 6 ) have been synthesized and characterized by elemental analysis, IR, and NMR (¹H, ¹¹⁹Sn) spectroscopy. The structures of 2 and 6 have been determined by X‐ray crystallography. Crystal structures show that both complexes 2 and 6 are the symmetric dinuclear unit. Interestingly, supramolecular structures show that complex 2 has formed a linear chain through N? H???S hydrogen bonding and 6 has formed a two‐dimensional network in perfect bc plane connected through N? H???Cl hydrogen bonding and nonbonded S???S interactions. © 2008 Wiley Periodicals, Inc. Heteroatom Chem 19:435–442, 2008; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/hc.20456