期刊
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
卷 73, 期 -, 页码 664-+出版社
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S2056989017005047
关键词
crystal structure; short contacts; benzoxazines; phenolic resins
资金
- Direccion de Investigaciones, Sede Bogota (DIB) de la Universidad Nacional de Colombia [35816]
The asymmetric unit of the title compound, C18H18I2N2O2, consists of one half-molecule, completed by the application of inversion symmetry. The molecule adopts the typical structure for this class of bis-benxozazines, characterized by an anti orientation of the two benzoxazine rings around the central C-C bond. The oxazinic ring adopts a half-chair conformation. In the crystal, molecules are linked by C-I center dot center dot center dot N short contacts [I center dot center dot center dot N = 3.378 (2) angstrom], generating layers lying parallel to the bc plane.
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