947493-64-3Relevant articles and documents
Flexible coordination of the carboxylate ligand in tin(II) amides and a 1,3-diaza-2,4-distannacyclobutanediyl
Dickie, Diane A.,Lee, Peter T.K.,Labeodan, Ojisamola A.,Schatte, Gabriele,Weinberg, Noham,Lewis, Andrew R.,Bernard, Guy M.,Wasylishen, Roderick E.,Clyburne, Jason A.C.
, p. 2862 - 2869 (2007)
A series of tin(ii) amido complexes possessing m-terphenyl carboxylate ligands have been prepared. These complexes, namely [(Me3Si) 2NSn(-O2CC6H2Ph3)] 2, [(Me3Si)2NSn(-O2CC 6H3Mes2)]2, and [(Me 3Si)2NSn(-O2CC6H2Mes 2Me)]2 [Mes = 2,4,6-trimethylphenyl], are the first structurally characterized examples of tin(ii) carboxylate complexes exhibiting discrete Sn2O4C2 heterocyclic cores. Initial reactivity studies led to the isolation of a 1,3-diaza-2,4- distannacyclobutanediyl, [(Mes2C6H3CO 2)Sn(-NSiMe3)]2. This molecule possesses a Sn2N2 heterocyclic core and it was crystallised as both the CH2Cl2 and Et2O solvates. Although the tin atoms in this molecule have a formal oxidation state of 3+, preliminary computational studies on this molecule suggest that it is best described as a ground state singlet. Finally, the X-ray crystal structure of (CH 2Cl)(Cl)Sn[N(SiMe3)2]2, the product of oxidative addition of CH2Cl2 to Sn[N(SiMe 3)2]2, is also presented herein. The Royal Society of Chemistry.