THE SYNTHESIS, CRYSTAL, MOLECULAR AND ELECTRONIC STRUCTURES OF TRIBROMO(NITROSYL)<i>BIS</i>(TRIPHENYLPHOSPHINE OXIDE) RHENIUM(II) AND TRIBROMO(NITROSYL)<i>BIS</i>(TRIPHENYLPHOSPHINE)RHENIUM(I)

Abstract

Abstract Gaseous nitric oxide reacts with a benzene solution of [ReOBr3(PPh3)2] to give [ReBr3(NO) (OPPh3)2] (1). When the reaction is carried out in the presence of an excess of free triphenyl-phosphine, the product is [ReBr3(NO)(PPh3)2] (2). The latter is also isolated in the reaction of 1 with PPh3. This paper, apart from the synthetic methods, presents spectroscopic and magneto-chemical measurements, and crystal, molecular and electronic structures for 1 and 2.