Synthesis, molecular structure, optical properties and electrical conductivity of zwitterionic ferrocenyldithiophosphonates

Abstract

Ferrocenyldithiodiphosphetane [FcPS(µ-S)]2 [Fc = Fe(?5-C5H4)(?5-C 5H5)] reacts with the aminoethanol derivatives 11-ethyl-3-pyrrolidinol and 2-(piperazin-1-yl)ethanol to give the zwitterionic (O-ethylammonium)ferrocenyldithiophosphonates [FcP(S)S(OC4H 7NHEt)] (2) and [FcP(S)S(OC2H4NHC 4H8NH)] (3), which were fully characterized by elemental analysis, IR and NMR spectroscopy and mass spectrometry. The optical and electri-cal properties of 2 and 3 as well as those of the previously reported [FcP(S)S(OC2H4NHEt2)] (1) were studied. A molecular structure determination of 1 is also reported. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.