Different Types of Nickel, Cobalt, and Manganese Complexes originating from 2‐Imidazolecarboxaldiimine of Triethylenetetraamine

Abstract

Abstract. The reactivity of the 2-imidazolecarboxaldiimine of triethylenetetraamine (H2imida) towards divalent manganese, cobalt, and nickel ions differs. It forms a cationic nickel(II) complex by acting as a hexa-dentate ligand, whereas the cobalt(II) complex formation took place by deprotonation of the H2imida forming a neutral complex with imida. Deprotonation of the ligand by H2imida by cobalt(II) ions

Platinum‐Imidazolyl Schiff Base Complexes Immobilized in Periodic Mesoporous Organosilica Frameworks as Catalysts for Hydrosilylation

“…complexes, most of which have been proven to be efficient catalysts. [20][21][22][23][24][25][26] In fact, the imidazolyl moiety itself is a fine chelating agent towards platinum due to the electron donating N atoms on its rigid ring, and several platinum-imidazolyl complexes have been reported in the literature. [27][28][29][30] When it is further converted into a Schiff base, its chelating ability is further enhanced as the number of donating atoms increase, thus increasing its ability to form platinum complexes.…”