Bis(hydrazine) complexes [Fe(RNHNH2)(2) (PPh(OEt)(2))(4)](BPh4)(2) (R = H,
CH3) 1, 2 were prepared by allowing nitrile complexes [Fe(CH3CN)(2) (PPh(OE
t)(2))(4)] (BPh4)(2) to react with hydrazine at 0 degreesC. The monohydrazi
ne [Fe(NH2NH2)(CH3CN)(2)(P(OEt)(3))] (BPh4)(2) derivative was also obtained
. Treatment of bis(hydrazine) 1. 2 with Pb(OAc)(4) led to the acetate compl
ex [Fe(kappa (2)-O2CCH3) (PPh(OEt)(2))(4)]BPh4. (C) 2001 Elsevier Science B
.V. All rights reserved.