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两性离子型（E）-1-[(4-硝基苯基)亚氨基甲基]萘-2-醇盐

Zwitterionic (E)-1-[(4-nitro-phen-yl)iminio-meth-yl]naphthalen-2-olate.

作者信息

Damous Maamar, Hamlaoui Meriem, Bouacida Sofiane, Merazig Hocine, Daran Jean-Claude

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2011 May 1;67(Pt 5):o1123-4. doi: 10.1107/S1600536811012359. Epub 2011 Apr 13.

DOI:10.1107/S1600536811012359
PMID:21754437
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3089354/
Abstract

The title compound, C(17)H(12)N(2)O(3), was synthesized by the reaction of 2-hy-droxy-1-naphthaldehyde with 4-nitro-benzenamine. These condense to form the Schiff base, which crystallizes in the zwitterionic form. In the structure, the keto-amino tautomer has a fairly short intra-molecular N-H⋯O hydrogen bond between the 2-naphthalenone and amino groups, with electron delocalization. The mol-ecule is essentially planar, with a dihedral angle of 1.96 (3)° between the ring systems. In the crystal, the mol-ecules are linked via inter-molecular C-H⋯O hydrogen bonds, forming a layer parallel to (101).

摘要

标题化合物C(17)H(12)N(2)O(3)是由2-羟基-1-萘甲醛与4-硝基苯胺反应合成的。它们缩合形成席夫碱，以两性离子形式结晶。在结构中，酮-氨基互变异构体在2-萘酮和氨基之间有相当短的分子内N-H⋯O氢键，伴有电子离域。分子基本呈平面状，环系之间的二面角为1.96 (3)°。在晶体中，分子通过分子间C-H⋯O氢键相连，形成平行于(101)的层。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bf3/3089354/a372a8d724c8/e-67-o1123-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bf3/3089354/b632b7336254/e-67-o1123-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bf3/3089354/002243e70d75/e-67-o1123-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bf3/3089354/a372a8d724c8/e-67-o1123-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bf3/3089354/b632b7336254/e-67-o1123-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bf3/3089354/002243e70d75/e-67-o1123-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6bf3/3089354/a372a8d724c8/e-67-o1123-fig3.jpg

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