Key points are not available for this paper at this time.
An ambient temperature liquid transition metal carbonyl anion has been prepared in a metathesis reaction between bmimCl (bmim+ = 1-butyl-3-methylimidazolium cation) and NaCo(CO)4; the ionic liquid catalyses the debromination of 2-bromoketones.
Brown et al. (Mon,) studied this question.