Chemical properties and biotoxicity of several chromium picolinate derivatives

Cr(pic)3 and its derivatives Cr(6-CH3-pic)3, [Cr(6-NH2-pic)2(H2O)2]NO3 and Cr(3-NH2-pic)3 were synthesized (pic = 2-carboxypyridine). The different electronic effects on the metal center, the chemical properties and biotoxicity of these complexes were discussed.102