PREPARATION AND CHARACTERIZATION OF IRON(- X-RAY CRYSTAL-STRUCTURES OF A(5)-C5H5)FE(IMMPHO)][BF4]CENTER-DOT-0.5CH(2)CL(2) AND ([(ETA(5)-C(5)ME(5))RU(CH3CN)](2)[IMMPHO]) (ZNCL4)CENTER-DOT-2CH(3)CN-CENTER-DOT-2H(2)O(2) AND RUTHENIUM(+2) DIIMINODIPHOSPHINE COMPLEXES )

The interaction of s[o-(diphenylphosphino)benzylidene]ethylenediamine (immpho) with one and two equivalents of [(eta(5)-C(5)Me(5))Ru(CH3CN)( 3)](+) (generated in situ from the reaction of [(eta(5)-C(5)Me(5))RuCl 2](n) with excess Zn granular in CH3CN) in CH3CN at room temperature g ave [(eta(5)-C(5)Me(5))Ru(immpho)](2)[ZnCl4] (I) and {[(eta(5)-C(5)Me( 5))Ru(CH3CN)](2)[immpho]}{ZnCl4} (II) 80% and 71% yield, respectively. Upon UV irradiation, immpho reacted with equal molar of [(eta(5)C(5)H (5))Fe(eta(6)-mesitylene)][BF4] in CH3CN at room temperature to eve [( eta(5)-C5H5)Fe(immpho)][BF4] (III) in 41% yield. Compounds I-III have been fully characterized by analytical and spectroscopic methods. The structures of II and III have been established by X-ray diffraction. C opyright (C) 1996 Elsevier Science Ltd