6,6'-（吡啶-2,6-二基）双-（吡咯并-[3,4-b]吡啶-5,7-二酮）
6,6'-(Pyridine-2,6-di-yl)bis-(pyrrolo-[3,4-b]pyridine-5,7-dione).
作者信息
Van der Berg P C W, Visser Hendrik G, Roodt Andreas
机构信息
Department of Chemistry, University of the Free State, PO Box 339, Bloemfontein 9300, South Africa.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2011 Nov;67(Pt 11):o3130. doi: 10.1107/S160053681104414X. Epub 2011 Oct 29.
The title compound, C(19)H(9)N(5)O(4), has crystallographically imposed twofold rotational symmetry. The asymmetric unit contains one half-mol-ecule. The crystal structure is stabilized by π-π stacking of inversion-related pyrrolo-[3,4-b]pyridine rings, with a centroid-centroid distance between stacked pyridines of 3.6960 (8) Å. The dihedral angle between the central pyridine ring and the pyrrolo-pyridine side rings is 77.86 (2)° while the angle between the two side chains is 60.87 (2)°.
标题化合物C(19)H(9)N(5)O(4)具有晶体学强加的二重旋转对称性。不对称单元包含半个分子。晶体结构通过反演相关的吡咯并[3,4 - b]吡啶环的π - π堆积得以稳定，堆积吡啶之间的质心 - 质心距离为3.6960 (8) Å。中心吡啶环与吡咯并吡啶侧环之间的二面角为77.86 (2)°，而两条侧链之间的夹角为60.87 (2)°。
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