Synthesis and Structural Characterization of a Pyridine Oxalato Molybdenum(V) Complex

Quan-Liang Chen

Molybdenum complexes cause much attract due to their potential applications in the fields of material, medicine and catalysis. In this paper, a pyridine oxalato molybdenum(V) complex trans-(PyH)₂[Mo₂O₄(ox)₂(Py)₂] (1) was synthesized with a yield of 75% in aqueous solution. Its structure was characterized by x-ray single crystal analysis. Complex 1 consists of dinuclear molybdate(V) anions and pyridine cations. The structure of molybdate(V) anion contains a dinuclear [Mo^V₂O₄]²⁺ core with Mo–Mo bond [2.549(2) Å]. Moreover, complex 1 displays a trans arrangement for the pyridine and oxalato ligands. The pyridine ligand coordinates to molybdenum atom through nitrogen atom. The oxalato ligand coordinates to each molybdenum atom through two carboxylate oxygens in a bidentate chelating manner.