TwoN,N′-diaryl-2,2,2-trichloroethane-1,1-diamines: hydrogen-bonded supramolecular structures in one and two dimensions
摘要:
The molecules of 2,2,2-trichloro-N,N'-diphenylethane-1,1-diamine, C14H13Cl3N2, are linked into ( 040) sheets by a combination of C-H center dot center dot center dot Cl and C-H center dot center dot center dot pi( arene) hydrogen bonds. In 2,2,2-trichloro- N,N'-bis(4-methylphenyl)ethane-1,1-diamine, C16H17Cl3N2, the molecules are linked into C(7) chains by two independent C-H center dot center dot center dot Cl hydrogen bonds and one Cl center dot center dot center dot Cl contact.
Preparation of Hydroquinone-Containing Polymers by ROMP
作者:Tahsin J. Chow、Ya-Chen Yang、Nan-Yun Chiu、Ming-Ann Hsu
DOI:10.1002/jccs.200100138
日期:2001.10
Polymers containing ortho- andpara-hydroquinone moieties 5a,b and 6a are prepared in good yields by ROMP from hydroquinone-fused norbornadiene derivatives la,b and 2a. Oxidation of 5b yielded a quinone derivative 7, whichis evidenced by a strong absorption at 1656 cm - 1 in infrared spectrum.