Synthesis and structural characterization of a novel asymmetric distannene [{1-[N(But)C(SiMe3)C(H)]-2-[N(But)(SiMe3)CC(H)]C6H4}Sn→Sn{1,2-[N(But)(SiMe3)CC(H)]2C6H4}]

Abstract

The reaction of dilithium complex [{1,2-[N(But)C(SiMe3)C(H)]2C6 H4}{Li2(TMEDA)2}] 1 with SnCl2 yielded an unusual asymmetric distannene [{1-[N(But)C(SiMe3)C(H)]-2-[N(But)(S iMe3)CC(H)]C6H4}Sn→Sn{1,2- [N(But)(SiMe3)CC(H)]2C6H4 }] 2 resulting from intramolecular self-rearrangements of the ligands; 2 has a tin–tin bond distance of 3.0087(3) Å.