Theoretical Study of Exo-Endo Interconversion of [(R)Ca1ixTMS2]Sn

Abstract

The 1, 3-bis(trimethyl silyl)ether of p-tert-butyl calix[4]arene, Rt-Bu)Ca1ixTMS21112, has been<br />synthesized and used as a dianionic ligand for "Sn". The complex of [(t-Bu)Ca1ixTMS2]Sn<br />exhibits exo and endo isomerism. The structural properties of [(Rp)Ca1ixTMS2]Sn, (Rpara= H,<br />CH3, t-Bu) and the inter conversion of exoendo isomers were investigated by using of SCF-MO<br />PM3 method.