1,2,4,5-Tetrafluoro-3,6-diiodobenzene-2,3-bis(pyridin-2-yl)pyrazine (1/1)
The components of the title 1:1 co-crystal, C14H10N4 center dot C6F4I2, are connected via an N center dot center dot center dot I [2.959 (4) angstrom] halogen bond, in which the N atom is part of the relatively electron-rich pyrazine ring. The C6F4I2 molecule is almost planar [r.m.s. deviation = 0.0...
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2010
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my.um.eprints.120072019-01-31T01:06:38Z http://eprints.um.edu.my/12007/ 1,2,4,5-Tetrafluoro-3,6-diiodobenzene-2,3-bis(pyridin-2-yl)pyrazine (1/1) Arman, H.D. Kaulgud, T. Tiekink, E.R.T. Q Science (General) The components of the title 1:1 co-crystal, C14H10N4 center dot C6F4I2, are connected via an N center dot center dot center dot I [2.959 (4) angstrom] halogen bond, in which the N atom is part of the relatively electron-rich pyrazine ring. The C6F4I2 molecule is almost planar [r.m.s. deviation = 0.038 angstrom] but there are significant twists in the pyrazine derivative, as seen in the dihedral angles [31.3 (2) and 54.6 (2)degrees] formed between the pendant pyridyl rings and the central pyrazine ring. The bimolecular aggregates are sustained in the crystal by C-H center dot center dot center dot F and pi-pi interactions [ring centroid(pyridyl)-ring centroid(benzene) = 3.678 (3) angstrom]. International Union of Crystallography 2010 Article PeerReviewed Arman, H.D. and Kaulgud, T. and Tiekink, E.R.T. (2010) 1,2,4,5-Tetrafluoro-3,6-diiodobenzene-2,3-bis(pyridin-2-yl)pyrazine (1/1). Acta Crystallographica Section E: Structure Reports Online, 66 (11). O2885-U808. ISSN 1600-5368 |
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Q Science (General) Arman, H.D. Kaulgud, T. Tiekink, E.R.T. 1,2,4,5-Tetrafluoro-3,6-diiodobenzene-2,3-bis(pyridin-2-yl)pyrazine (1/1) |
| description |
The components of the title 1:1 co-crystal, C14H10N4 center dot C6F4I2, are connected via an N center dot center dot center dot I [2.959 (4) angstrom] halogen bond, in which the N atom is part of the relatively electron-rich pyrazine ring. The C6F4I2 molecule is almost planar [r.m.s. deviation = 0.038 angstrom] but there are significant twists in the pyrazine derivative, as seen in the dihedral angles [31.3 (2) and 54.6 (2)degrees] formed between the pendant pyridyl rings and the central pyrazine ring. The bimolecular aggregates are sustained in the crystal by C-H center dot center dot center dot F and pi-pi interactions [ring centroid(pyridyl)-ring centroid(benzene) = 3.678 (3) angstrom]. |
| format |
Article |
| author |
Arman, H.D. Kaulgud, T. Tiekink, E.R.T. |
| author_facet |
Arman, H.D. Kaulgud, T. Tiekink, E.R.T. |
| author_sort |
Arman, H.D. |
| title |
1,2,4,5-Tetrafluoro-3,6-diiodobenzene-2,3-bis(pyridin-2-yl)pyrazine (1/1) |
| title_short |
1,2,4,5-Tetrafluoro-3,6-diiodobenzene-2,3-bis(pyridin-2-yl)pyrazine (1/1) |
| title_full |
1,2,4,5-Tetrafluoro-3,6-diiodobenzene-2,3-bis(pyridin-2-yl)pyrazine (1/1) |
| title_fullStr |
1,2,4,5-Tetrafluoro-3,6-diiodobenzene-2,3-bis(pyridin-2-yl)pyrazine (1/1) |
| title_full_unstemmed |
1,2,4,5-Tetrafluoro-3,6-diiodobenzene-2,3-bis(pyridin-2-yl)pyrazine (1/1) |
| title_sort |
1,2,4,5-tetrafluoro-3,6-diiodobenzene-2,3-bis(pyridin-2-yl)pyrazine (1/1) |
| publisher |
International Union of Crystallography |
| publishDate |
2010 |
| url |
http://eprints.um.edu.my/12007/ |
| _version_ |
1643689195918589952 |