Über tetraaryl-methan-analoga in der gruppe 14: III. Ar4Sn/Pb (Ar Ph, p-, m-, o-Tol, 2, 4-Xyl und 2, 5-Xyl): Gegenüberstellung von bindungslängen und winkeln, von …

C Schneider-Koglin, B Mathiasch, M Dräger

Index: Schneider-Koglin, Claudia; Mathiasch, Bernd; Draeger, Martin Journal of Organometallic Chemistry, 1994 , vol. 469, # 1 p. 25 - 32

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Citation Number: 18

Abstract

Abstract The title compounds have been synthesized by Grignard reactions or pyrolysis of diplumbanes respectively. The crystal structures of m-Tol 4 Pb and Ph 4 Pb (redetermination) have been determined. All eight compounds (Ph/Tol) 4 (Sn/Pb) are S 4 symmetric and contracted along this unique axis. The 13 C-NMR chemical shifts and the couplings 1 J (119 Sn/207 Pb 13 C) as well depend additively upon the methyl ...