Cobaloxime Synthesis Questions
1. Given this compound:chloro(pyridine)bis(dimethylglyoximato)cobalt(III)
a) Does this complex contain any chelating ligands? If so, whichones and what is their denticity?
b) Which ligands are monodentate?
c) Which ligands are neutral?
d) Which ligands are anionic?
2. The coordination complex you are making belongs to a familyof compounds with a shorthand nickname of “cobaloximeâ€. Otherderivatives of cobaloximes can be made by replacing chloro- andpyridine with other ligands. Cobaloximes have been used as modelcomplexes of the naturally occurring cobalamin, otherwise known asvitamin B12.
a. What makes cobaloximes appropriate models for vitaminB12?
b. What are some differences between cobaloxime and vitaminB12?
