1,2,4,5-Tetrafluoro-3,6-diiodobenzene-2,3-bis(pyridin-2-yl)pyrazine (1/1)

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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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].

Item Type: Article
Subjects: Q Science > Q Science (General)
Depositing User: Mr Faizal 2
Date Deposited: 14 Jan 2015 02:05
Last Modified: 31 Jan 2019 01:06
URI: http://eprints.um.edu.my/id/eprint/12007

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