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2,4-二苯基-4,5-二氢-3H-吡啶并[2,3-b][1,4]二氮杂䓬

2,4-Diphenyl-4,5-dihydro-3H-pyrido[2,3-b][1,4]diazepine.

作者信息

Fun Hoong-Kun, Yeap Chin Sing, Hazra Anita, Jana Subrata, Goswami Shyamaprosad

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2009 Apr 30;65(Pt 5):o1139-40. doi: 10.1107/S1600536809014901.

DOI:10.1107/S1600536809014901
PMID:21583947
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2977810/
Abstract

The asymmetric unit of the title compound, C(20)H(17)N(3), contains two crystallographically independent mol-ecules (A and B). In mol-ecule A, the two benzene rings form dihedral angles of 74.12 (7) and 7.83 (7)° with the pyridine ring, while in mol-ecule B these angles are 77.48 (7) and 21.50 (7)°. The seven-membered heterocyclic ring adopts a boat conformation in both mol-ecules. In the crystal structure, each of the independent mol-ecules forms a centrosymmetric R(2) (2)(8) dimer linked by paired N-H⋯N hydrogen bonds. The crystal structure is further stabilized by inter-molecular C-H⋯N hydrogen bonds and C-H⋯π inter-actions.

摘要

标题化合物C(20)H(17)N(3)的不对称单元包含两个晶体学独立的分子(A和B)。在分子A中,两个苯环与吡啶环形成的二面角分别为74.12 (7)°和7.83 (7)°,而在分子B中,这些角度分别为77.48 (7)°和21.50 (7)°。在两个分子中,七元杂环均呈船式构象。在晶体结构中,每个独立分子通过成对的N-H⋯N氢键形成一个中心对称的R(2) (2)(8)二聚体。晶体结构通过分子间的C-H⋯N氢键和C-H⋯π相互作用进一步稳定。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8b27/2977810/32b8511acbdc/e-65-o1139-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8b27/2977810/a42dd52a80c0/e-65-o1139-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8b27/2977810/32b8511acbdc/e-65-o1139-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8b27/2977810/a42dd52a80c0/e-65-o1139-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8b27/2977810/32b8511acbdc/e-65-o1139-fig2.jpg

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