STRUCTURAL STUDIES ON PARACYANOGEN AND PARAISOCYANOGEN

被引:26
作者
JENNESKENS, LW [1 ]
MAHY, JWG [1 ]
VLIETSTRA, EJ [1 ]
GOEDE, SJ [1 ]
BICKELHAUPT, F [1 ]
机构
[1] VRIJE UNIV AMSTERDAM,SCHEIKUNDIG LAB,1081 HV AMSTERDAM,NETHERLANDS
来源
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1994年 / 90卷 / 02期
关键词
D O I
10.1039/ft9949000327
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Polymers derived from the isomeric C2N2 monomers cyanogen (NCCN) and isocyanogen (CNCN) are investigated. Although both paracyanogen [poly(NCCN)] and paraisocyanogen [poly(CNCN)] consist of carbon and nitrogen in a close to 1 : 1 ratio, thermogravimetric (TG) and spectroscopic analyses (DRIFT, EPR, UV-VIS-NIR and XPS) reveal that their molecular structures are markedly different. Despite the occurrence of pi-conjugation, no regular ladder structures are found. In line with the spectroscopic data, conductivity measurements show that pristine poly(CNCN) and poly(NCCN) are an insulator and a semiconductor, respectively.
引用
收藏
页码:327 / 332
页数:6
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