| Abstract: | Reactions of the Cycloheptatrienyl Complexes η7-C7H7W(CO)3]BF4 and η7-C7H7Mo(CO)2Br with Neutral Ligands and the Electrochemical Reduction of the Wolfram Complex Compounds of the type η7-C7H7M(CO)2L]BF4] (L = P(C6H5)3, As(C6H5)3, Sb(C6H5)3 for M = W and L = N2H4 for M = Mo) were synthesized and characterisized. The iodide η7-C7H7W(CO)2I reacts with the diphosphine ((C6H5)2PCH2)2 to give the trihapto complex η3-C7H7 W(CO)2I((C6H5)2PCH2)2. In the case of η7-C7H7Mo(CO)2 Br reaction with hydrazine leads to the substitution product η7-C7H7 Mo(CO)2N2H4]⊕, which can be stabilized by large anions. The binuclear complex C7H7W(CO)3]2 has been synthesized electrochemically. |
