期刊
ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE
卷 67, 期 -, 页码 O1732-U1088出版社
WILEY-BLACKWELL
DOI: 10.1107/S1600536811023087
关键词
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资金
- National High Technology Development Project (863 Project) [2006 A A09Z408 GDSFC 06025194, 2005 A30503001, 2006Z3E4041]
- National Natural Science Fund [20772048]
The asymmetric unit of the title compound, C7H3F4NO2, obtained as an intermediate in the synthesis of a coupling reagent, contains four independent and conformationally similar molecules. The amine H atoms form both intramolecular and intermolecular N-H center dot center dot center dot O-carboxyl hydrogen bonds which, together with intermolecular O-H center dot center dot center dot O-carboxyl hydrogen bonds and N-H center dot center dot center dot F associations form ribbon structures along the a axis.
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