The influence of carbanion orbital orientation and charge distribution on the structures of polylithium compounds
Abstract
Symmetrical (C2v) double bridging, commonly exhibited by 1,4-dilithium compounds e.g. in (1) and (2), is not favoured in (4) and (5) since charge deloclization in the dianion, hybridization, and orbital orientation effects are more important than quadrupole-like electrostatic interactions (3).