L. M. Engelhardt, B. S. Jolly, M. Lappert
1988
Citations
0
Influential Citations
42
Citations
Journal
Journal of The Chemical Society, Chemical Communications
Abstract
Monomeric 2-pyridylbis(trimethylsilyl)methyltin(II) compounds Sn(R)X [= (SiMe3)2C5H4N-2 and = (1), l (2), or (SiMe3)2(3)] were prepared from (LiR)2 and (a) SnCl2 or Sn(OC6H3But2-2,6)2(1), (b) 2SnCl2(2), or (c) Sn[N(SiMe3)2]2(3); their X-ray structures show that the ligands are invariably bonded to tin in a chelating fashion in the crystal with Sn–C and Sn–NC5H4 bond lengths of 2.35(2) and 2.42(2)(1), 2.32(2) and 2.27(3)(2), and 2.356(8) and 2.299(5)A(3), respectively, but in C6D5CD3 solution there appear to be (n.m.r.) C5H4N–Sn dissociative processes (ΔG‡ca. 43 ± 2 kJ mol–1).