Synthesis and structural characterization of a novel 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 }]Electronic supplementary information (ESI) available: characterization data for compounds 1 and 2. See http://www.rsc.org/suppdata/cc/b0/b000268m/

Abstract

The reaction of dilithium complex [{1,2-[N(Bu^t)C(SiMe₃)C(H)]₂C₆ H₄}{Li₂(TMEDA)₂}] 1 with SnCl₂ yielded an unusual asymmetric distannene [{1-[N(Bu^t)C(SiMe₃)C(H)]-2-[N(Bu^t)(S iMe₃)CC(H)]C₆H₄}Sn→Sn{1,2- [N(Bu^t)(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.