Condensation polymers of dicyclopentadienyl iron with aromatic diazoium salts and magnetism
writer：Chun-Peng Chai, Yun-Pu Wang, Rong-Min Wang, Hong-Xia Ren；Cheng-Jun Hao
keywords：condensation polymer; magnetism; dicyclopentadienyl iron; diazoium salts
source：期刊
specific source：POLYMERS FOR ADVANCED TECHNOLOGIES
Issue time：2004年
Five kinds of condensation polymers of dicyclopentadienyl iron with aromatic diazoium salts were firstly composed. Using inductively coupled plasma (ICP) and FT-IR their structures were characterized. Their thermal stability was discussed using TG and DTA. The electronic structure of iron was studied by Mossbauer spectra and electron spin resonance (ESR) spectra. Measurement of temperature
dependence of the magnetic property (M-T curve) of the condensation polymers indicates that they have stronger magnetism. At a temperature of T=1.5 K, the loop of magnetic hysteresis was obtained. The strongest magnetic condensation polymer was benzyl ferrocene making 1/xm-T, obtaining a condensation temperature of Tc=0.5 K, when T<Tc, the condensation polymer shows ferromagnetism