The synthesis and spectroscopic identification of [(η5-C5H5)Re(N2)3] and [(η5-C5H5)Re(CO)(N2)2] in supercritical xenon at room temperature and in N2 matrices at 20 K

Abstract

U.v. photolysis of [(cp)Re(CO)₃](cp =η⁵-cyclopentadienyl) in either supercritical xenon heavily doped with N₂ or in solid N₂ matrices at 20 K leads to stepwise substitution of CO by N₂ and formation of [(cp)Re(CO)_3–x(N₂)_x] species (x= 1–3), all of which have been characterized by i.r. spectroscopy and ¹⁵N₂ substitution; [(cp)Re(CO)(N₂)₂] is stable at room temperature.