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. 2012 Mar 1;68(Pt 3):o771.
doi: 10.1107/S1600536812006095. Epub 2012 Feb 17.

4,4,5,5-Tetra-methyl-2-[1,3,6,8-tetra-bromo-7-(4,4,5,5-tetra-methyl-1,3,2-dioxaborolan-2-yl)pyren-2-yl]-1,3,2-dioxaborolane

Ying Chen, Wen-Tao Yu, Zhi-Qiang Liu, Ping Yu

4,4,5,5-Tetra-methyl-2-[1,3,6,8-tetra-bromo-7-(4,4,5,5-tetra-methyl-1,3,2-dioxaborolan-2-yl)pyren-2-yl]-1,3,2-dioxaborolane

Ying Chen et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The complete mol-ecule of the title compound, C(28)H(28)B(2)Br(4)O(4), is generated by the application of a centre of inversion. In the mol-ecule, the BO(2) plane is perpendicular to that through the pyrene ring [dihedral angle = 86.27 (13)°]. In the crystal, mol-ecules stack into columns along the b axis, the closest contact between these being of the type C-Br⋯π.

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Figures

Fig. 1.
Fig. 1.
Molecular structure of the title compound. Displacement ellipsoids are drawn at 50% probability level.
Fig. 2.
Fig. 2.
The packing in the title molecules in crystal viewed approximately down the b axis. Intermolecular Br···C (3.414 (3) Å) contacts, being representative of the Br···π contacts are shown as dashed lines.
See this image and copyright information in PMC

References

    1. Bruker (2009). APEX2, SAINT and SADABS Bruker AXS Inc., Madison, Wisconsin, USA.
    1. Coventry, D. N., Batsanov, A. S., Goeta, A. E. H., Judith, A. K., Marder, T. B. & Perutz, R. N. (2005). Chem. Commun. pp. 2172–2174. - PubMed
    1. Dolomanov, O. V., Bourhis, L. J., Gildea, R. J., Howard, J. A. K. & Puschmann, H. (2009). J. Appl. Cryst. 42, 339–341.
    1. Macrae, C. F., Edgington, P. R., McCabe, P., Pidcock, E., Shields, G. P., Taylor, R., Towler, M. & van de Streek, J. (2006). J. Appl. Cryst. 39, 453–457.
    1. Miura, T. & Yamano, E. (1995). J. Org. Chem. 60, 1070–1073.