The syntheses, crystal, molecular and electronic structures of two polymorphs of [ReCl2(N2COPh)(C3N2H4)(PPh3)2] and [ReCl2(N2COPh)(py)(PPh3)2] complexes
The [ReCl2(eta(2)-NZCOPh-N',O)(PPh3)(2)] complex reacts with pyridine and pyrazole to give [ReCl2(N2COPh)(py)(PPh3)(2)] and [ReCl2(N2COPh)(C3N2H4)(PPh3)(2)], respectively. Two monoclinic polymers of [ReCl2(NZCOPh)(C3N2H4)(PPh3)(2)] and [ReCl2(N2COPh)(py)(PPh3)(2)] have been characterized by IR, UV-Vis, H-1 NMR, magnetic measurements and X-ray structure. (C) 2003 Elsevier Ltd. All rights reserved.