title: Tin sulfide and selenide clusters soluble in organic solvents with the core structures of Sn4S6 and Sn4Se6.
abstract: Reactions of LSnCl (1) (L = N(2,6-iPr2C6H3)(SiMe3)) with sulfur and selenium, respectively under mild conditions yielded two tin chalcogenide clusters. Surprisingly the tin atoms of the L4Sn4S6 (2) and L4Sn4Se6 (3) clusters are oxidized from Sn(II) of the precursor to Sn(IV) of the products under concomitant reduction of elemental sulfur and selenium to sulfide and selenide, respectively. The released chlorine radicals from the precursor LSnCl (1) react under oxidative addition with another LSnCl molecule to yield the side product LSnCl3 (4). The soluble nature of clusters 2 and 3 in organic solvents is a unique property of this class of compounds and makes them suitable for reactions in organic solvents. Compounds 2 and 3 were characterized by single crystal X-ray diffraction and multinuclear NMR investigations. Furthermore in ROP polymerization, the two products show high catalytic activity. For the first time a tin selenide compound functions in ROP catalysis.
authors.affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, 100081 Beijing, China. zhiyang@bit.edu.cn.
authors.forename: Mingdong
authors.initials: M
authors.lastname: Zhong
authors.affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, 100081 Beijing, China. zhiyang@bit.edu.cn.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Yang
authors.affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, 100081 Beijing, China. zhiyang@bit.edu.cn.
authors.forename: Yafei
authors.initials: Y
authors.lastname: Yi
authors.affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, 100081 Beijing, China. zhiyang@bit.edu.cn.
authors.forename: Dongxiang
authors.initials: D
authors.lastname: Zhang
authors.affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, 100081 Beijing, China. zhiyang@bit.edu.cn.
authors.forename: Kening
authors.initials: K
authors.lastname: Sun
authors.affiliation: Institut für Anorganische Chemie der Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany. hroesky@gwdg.de.
authors.forename: Herbert W
authors.initials: HW
authors.lastname: Roesky
authors.affiliation: School of Chemistry and Chemical Engineering, Central South University, 410083 Changsha, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Yang