Synthesis, conformational analysis, and stereoisomerization of 2,2′:2″,2‴-Bis(ethano)tetraaryltins

Tin Organometallic Compounds: Classification and Analysis of Crystallographic and Structural Data: Part 1. Monomeric Derivatives

“…The remainder are Sn(IV) compounds with a distorted tetrahedral environment. The structure of Sn(Ph) 3 (ompa) is shown in Figure 4 as an example [87a], There are several types of chomophore: SnC 4 ; SnC 3 X; SnC 2 X 2 ; SnCI 2 XY; SnCX 3 ; as can be found in [122][123][124][125][126][127][128][129][130][131][132][133][134][135][136][137], and one monodentate and a tridentate [138] giving the SnC 4 chromophore; two alkyl groups plus a hetero bidentate (C+N) ligand, methyl [169][170][171], tert-butyl [172]; two monodentate C-donors plus heterodentate (C+S or Se) [216]; two monodentate C-donors plus a chelate (N+N) [242,243], (B+B) [247], (S+S) [278][279][280][281][282][283][284][285][286][287][288], (P+P) [289][290][291], (Se+Se) [288,294]; one chelate (C+C) plus two CI atoms [260] and one tridentate (N+N+C) plus a chlorine atom [299].…”