Mössbauer studies on ferrocene complexes IX. Phosphaferrocenes and their protonated derivatives

B Lukas, RMG Roberts, J Silver, AS Wells

Index: Lukas, B.; Roberts, R. M. G.; Silver, J.; Wells, A. S. Journal of Organometallic Chemistry, 1983 , vol. 256, # 1 p. 103 - 110

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Citation Number: 52

Abstract

Abstract A number of mono-and di-phosphaterrocenes have been synthesised and their NMR (1 H, 31 P) and Mössbauer spectra measured. The presence of a phosphorus atom in the cyclopentadienyl (Cp) moiety causes a reduction of about 0.3 mm s− 1 in the quadrupole splitting (QS) compared with what of ferrocene. The effect appears to be additive, as does the effect of Cp ring substituents. Thus 2, 5-diphenylphosphaferrocene (I), 3, 3′, 4, 4′- ...