文献类型：期刊文献

英文题名：1,4a,7-Trimethyl-7-vinyl-1,2,3,4,4a,4b,5,6,7,8,10,10a-dodecahydrophenanthrene-1-carboxylic acid

作者：Zhao, Zhen-Dong[1] Chen, Yu-Xiang[1] Wang, Yu-Min[1] Bi, Liang-Wu[1]

第一作者：Zhao, Zhen-Dong

通信作者：Zhao, ZD[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China

年份：2009

卷号：65

期号：6

起止页码：O1429-U3205

外文期刊名：ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS

收录：;Scopus(收录号：2-s2.0-67649847790);WOS:【SCI-EXPANDED(收录号:WOS:000266514400295)】；

基金：This work was supported by the Natural Science Fund of Jiangsu Province under grant No. BK2006011 and the National Natural Science Foundation of China under grant No. 30571466.

语种：英文

摘要：The title compound, also known as isopimaric acid, C20H30O2, was isolated from slash pine rosin. There are two unique molecules in the unit cell. The two cyclohexane rings have classical chair conformations. The cyclohexene ring represents a semi-chair. The molecular conformation is stabilized by weak intramolecular C-H center dot center dot center dot O hydrogen-bonding interactions. The molecules are dimerized through their carboxyl groups by O-H center dot center dot center dot O hydrogen bonds, forming R-2(2)(8) rings.