Further study of tris(cyclohexyl)stannane compounds, Cy 3SnX. Syntheses of the compounds with X = Br, I, N 3 and NCS and redetermination of the crystal structures of Cy 3SnX (X = Br and I)

Abstract

Methods of preparation and far IR data are presented for various Cy 3SnX compounds. The synthesis of tris(cyclohexyl)tin hydroxide, Cy 3SnOH, is also described. Redeterminations of the crystal structures of tris(cyclohexyl)tin bromide and iodide, Cy 3SnBr and Cy 3SnI, confirm their molecular nature and improve considerably upon the results reported earlier [S. Calogero, P. Ganis, V. Peruzzo, G. Tagliavini, G. Valle, J. Organomet. Chem. 220 (1981) 11] providing, in both cases, lower Rfactors and, in particular, a revised estimate of the Sn–I bond length, now 2.7463(6) Å.