TY  - JOUR
A1  - Rivera, Augusto
A1  - Rojas, Jicli José
A1  - Ríos-Motta, Jaime
A1  - Bolte, Michael
T1  - Crystal structure and C-H...F hydrogen bonding in the fluorinated bis-benzoxazine : 3,3'-(ethane-1,2-di­yl)bis­(6-fluoro-3,4-di­hydro-2H-1,3-benzoxazine)
T2  - Acta crystallographica. Section E, Crystallographic communications
N2  - The title fluorinated bis­benzoxazine, C18H18F2N2O2, crystallizes with one half-mol­ecule in the asymmetric unit, which is completed by inversion symmetry. The fused oxazine ring adopts an approximately half-chair conformation. The two benzoxazine rings are oriented anti to one another around the central C-C bond. The dominant inter­molecular inter­action in the crystal structure is a C-H...F hydrogen bond between the F atoms and the axial H atoms of the OCH2N methyl­ene group in the oxazine rings of neighbouring mol­ecules. C-H...[pi] contacts further stabilize the crystal packing.
KW  - crystal structure
KW  - benzoxazine
KW  - non-conventional hydrogen bonds
Y1  - 2016
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/42880
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-428805
UR  - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5050787
SN  - 2056-9890
N1  - This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
VL  - 72
IS  - Pt 10
SP  - 1509
EP  - 1511
PB  - International Union of Crystallography
CY  - Chester
ER  -