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. 2010 Jan 9;66(Pt 2):o251.
doi: 10.1107/S1600536809054828.

2,7-Dibromo-9,9-bis-[(pyridin-1-ium-4-yl)meth-yl]fluorene dinitrate

Fang-Fang Jian, Shan-Shan Zhao, Huan-Mei Guo, Yu-Feng Li, Pu-Su Zhao

2,7-Dibromo-9,9-bis-[(pyridin-1-ium-4-yl)meth-yl]fluorene dinitrate

Fang-Fang Jian et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

In the title compound, C(25)H(20)Br(2)N(2) (2+)·2NO(3) (-), the cation lies on a twofold rotation axis which imposes disorder of the dibromo-fluorene unit. In addition, the unique nitrate anion is disordered over two general sites of equal occupancy. The crystal structure is stabilized by inter-molecular N-H⋯O hydrogen bonds.

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Figures

Fig. 1.
Fig. 1.
The molecular structure of the title compound showing 30% probability displacement ellipsoids. The disorder is not shown but thinner bonds show the areas where disorder occurs.
See this image and copyright information in PMC

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