title: Tetrahedral Sn-silsesquioxane: synthesis, characterization and catalysis.
abstract: A tetrahedral stannasilsesquioxane complex was synthesized as a racemic mixture using Sn(O(i)Pr)4 and silsesquioxanediol, and its structure was confirmed with X-ray crystallography, NMR, and EXAFS. The complex was a Lewis acid, and both anti and syn-binding with Lewis bases were possible with the formation of octahedral Sn complexes. It was also a Lewis acid catalyst active for epoxide ring opening and hydride transfer.
authors.affiliation: Chemical and Biological Engineering Department, Northwestern University, Evanston, IL. 60208, USA. hkung@northwestern.edu m-kung@northwestern.edu.
authors.forename: Evgeny V
authors.initials: EV
authors.lastname: Beletskiy
authors.forename: Zhongliang
authors.initials: Z
authors.lastname: Shen
authors.forename: Mark V
authors.initials: MV
authors.lastname: Riofski
authors.forename: Xianliang
authors.initials: X
authors.lastname: Hou
authors.forename: James R
authors.initials: JR
authors.lastname: Gallagher
authors.forename: Jeffrey T
authors.initials: JT
authors.lastname: Miller
authors.forename: Yuyang
authors.initials: Y
authors.lastname: Wu
authors.forename: Harold H
authors.initials: HH
authors.lastname: Kung
authors.forename: Mayfair C
authors.initials: MC
authors.lastname: Kung