1,2- vs 1,4-Regioselectivity of Lithiated Phenylacetonitrile toward α,β-Unsaturated Carbonyl Compounds. 1. Monomer−Dimer Equilibrium of Lithiated Phenylacetonitrile Ion Pairs in Solution and Structure Determination of the Species by Spectroscopic Methods and ab Initio Calculations. Evidence of a Lithium Bridged Monomeric Ion Pair

Abstract

New contributions from near-infrared FT-Raman and IR spectroscopies to the structure of [PhCHCNLi]n (1) in solution evidence that only two species, a monomeric ion pair 2 and a dimeric one 4, are i...