摘要:
                                The imido complex [ReCl3(NPh)(PPh3)2] reacts with excess maltol to give the green complex [Re(maltol)2(NPh)(PPh3)][BPh4] (1).  Under analogous conditions, [ReCl2(N2COPh)(PPh3)2] gives [ReCl(maltol)(N2COPh)(PPh3)2] (2).  An X-ray crystal structure of complex 1 revealed a distorted octahedral structure with cis-maltol ligands.  Preliminary X-ray data on a poorly diffracting crystal of complex 2 has confirmed the formulation and stereochemistry.  The possible structures of products from other precursors are discussed together with their redox and spectroscopic properties.