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4,4'-双[2-(3,5-二甲氧基苯基)乙烯基]联苯。

4,4'-Bis[2-(3,5-dimeth-oxy-phen-yl)ethen-yl]biphen-yl.

作者信息

Collas Alain, Zeller Matthias, Blockhuys Frank

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2011 May 1;67(Pt 5):o1112-3. doi: 10.1107/S1600536811012888. Epub 2011 Apr 13.

DOI:10.1107/S1600536811012888
PMID:21754429
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3089291/
Abstract

The title compound, C(32)H(30)O(4), crystallizes with three different conformers of the same mol-ecule in the asymmetric unit, which explains the unusually large unit cell volume. The supra-molecular structure is based on inter-actions involving the meth-oxy groups [C⋯O contacts between 3.090 (2) and 3.204 (2) Å, and C-H⋯O contacts between (normalized) 2.40 and 2.71 Å], π-π stacking of the electron-rich meth-oxy-substituted rings [centroid-centroid distances of 3.6454 (9)-3.738 (1) Å] and C-H⋯π contacts (normalized, 2.62-2.97Å).

摘要

标题化合物C(32)H(30)O(4)在不对称单元中以同一分子的三种不同构象结晶，这解释了其异常大的晶胞体积。超分子结构基于涉及甲氧基的相互作用[C⋯O接触距离在3.090(2)至3.204(2)Å之间，C-H⋯O接触距离（归一化后）在2.40至2.71Å之间]、富电子甲氧基取代环的π-π堆积[质心-质心距离为3.6454(9)-3.738(1)Å]以及C-H⋯π接触（归一化后，2.62-2.97Å）。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2649/3089291/94d23824942c/e-67-o1112-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2649/3089291/dbe0053dbb2f/e-67-o1112-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2649/3089291/94d23824942c/e-67-o1112-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2649/3089291/dbe0053dbb2f/e-67-o1112-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2649/3089291/94d23824942c/e-67-o1112-fig2.jpg

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