Tricarbonyl (h6-pyridine)chromium (0)

Abstract

The molecular structure of tricarbonyl(rl6-pyridine) - chromium(0), [Cr(CO)3(C5H5N)], is presented here. The Cr atom is bound to the pyridine ring via the 7r-electron system and is situated directly below the heteroarene ring centre. The pyridine ring is slightly distorted com- pared to free pyridine and the distance from the Cr atom to the plane of the pyridine ring is 1.698 (2),4,. The tri- carbonyl moiety adopts an eclipsed conformation with respect to the pyridine ring atoms.