Synthesis, solution behaviour and X-ray structures of [2-(Me2NCH2)C6H4]SnCl3 and [2-(Me2NCH2)C6H4]SnCl3·DMSO

✍ Scribed by Richard A. Varga; Cristian Silvestru; Calin Deleanu

• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 290 KB
• Volume: 19
• Category: Article
• ISSN: 0268-2605
• DOI: 10.1002/aoc.817

✦ Synopsis

2-(Me 2 NCH 2 )C 6 H 4 ]SnCl 3 (1) was prepared via (i) salt elimination reaction between RLi and SnCl 4 (1 : 1 molar ratio), in toluene solution, and (ii) redistribution reaction between [2-(Me 2 NCH 2 )C 6 H 4 ] 4 Sn and SnCl 4 (1 : 3 molar ratio), in the absence of a solvent. Recrystallization from DMSO afforded the isolation of the DMSO adduct [2-(Me 2 NCH 2 )C 6 H 4 ]SnCl 3 •DMSO (1a). The compounds were characterized by multinuclear NMR ( 1 H, 13 C, 119 Sn) in solution. The molecular structures of 1 and 1a were determined by single-crystal X-ray diffraction. The crystal structure of compounds 1 and 1a consists of discrete monomeric molecular units separated by normal van der Waals distances between heavy atoms. The N atom of the pendant CH 2 NMe 2 arm is strongly coordinated to the tin atom, thus resulting in distorted trigonal bipyramidal (C,N)SnCl 3 and octahedral (C,N)SnCl 3 O cores for 1 and 1a, respectively. For both compounds hydrogen bonding generates supramolecular associations in crystal.