Synthesis and Crystal and Molecular Structure of the Solvated Complex [MoO 2 ( L ) · C 5 H 5 N], Where L 2– Is the 2-[ N -(2-Hydroxynaphthalidene)amino]propane-1,2,3-Triol Anion

A new dioxomolybdenum(VI) compound [MoO2(L) · C5H5N], where L2– is 2-[N-(2-hydroxynaphthalidene)amino]propane-1,2,3-triol, was synthesized and its structure was determined by IR spectroscopy and X-ray diffraction. The Mo atom is in an octahedral coordination environment formed by two oxo ligands in cis positions to each other, two O atoms and the N(2) atom of the tridentate bis(chelate) ligand L, and the N(1) atom of the pyridine (Py) molecule. The N(2)(L) and N(1)(Py) atoms are in trans positions to the O(oxo) ligands at distances that are elongated due to the structural trans effect of the multiply bonded oxo ligands (Mo–N(1), 2.476 A; Mo–N(2), 2.272 A).