Synthesis and Characterization of Poly(ferrocenylsilane)s and Their Charge Transfer Salts

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• 作者：Hongding Tang ; Yunyang Liu ; Xingguo Chen ; Jingui Qin ; Makoto Inokuchi ; Minoru Kinoshita ; Xianbo Jin ; Zhiyuan Wang ; and Binfu Xu
• 刊名：Macromolecules
• 出版年：2004
• 出版时间：December 28, 2004
• 年：2004
• 卷：37
• 期：26
• 页码：9785 - 9792
• 全文大小：153K
• 年卷期：v.37,no.26(December 28, 2004)
• ISSN：1520-5835

文摘

A novel series of poly(ferrocenylsilane)s (PFSs), i.e., poly(ferrocenylmethyl(N-ethyl-N-phenyl)propylsilane) (4a), poly(ferrocenylmethyl(3-(4-methoxylphenyl)propylsilane)) (4b), and poly(ferrocenylmethyl(3-(9-carbazolyl)propylsilane)) (4c), were synthesized by transition-metal-catalyzed ring-openingpolymerization (ROP) of the corresponding substituted [1]silaferrocenophanes (3a-c). They werecharacterized by ¹H and ¹³C NMR, FT-IR, elemental analysis, GPC, DSC, TGA, and cyclic voltammetry.Attempts have been made to dope PFSs 4 with 7,7,8,8-tetracyano-p-quinodimethane (TCNQ), chloranil(CA), tetracyanoethylene (TCNE), and iodine. Only iodine and TCNE were able to form charge transfersalts 5a-c and 6a-c, respectively. FT-IR, elemental analysis, and Mössbauer spectra results showedpartially oxidized states for 5a-c and 6a-c, and magnetic measurements by a SQUID magnetometerdemonstrated paramagnetic behavior with significant antiferromagnetic interactions for these complexesover a wide temperature range.