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2,2'-[9H-芴-9,9-二基双(对亚苯基氧基)]二乙酸二叔丁酯

Di-tert-butyl 2,2'-[9H-fluorene-9,9-diylbis(p-phenyl-ene-oxy)]diacetate.

作者信息

Shah Kiramat, Yousuf Sammer, Raza Shah Muhammad, Ng Seik Weng

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2010 Jun 18;66(Pt 7):o1705. doi: 10.1107/S1600536810022579.

DOI:10.1107/S1600536810022579
PMID:21587925
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3006837/
Abstract

In the title mol-ecule, C(37)H(38)O(6), the non-fused C atom belonging to the five-membered ring of the fluorene system is connected to two p-phenyl-ene rings, the rings opening up the C(ar-yl)-C-C(ar-yl) angle to 113.1 (1)°. The four-atom -O-CH(2)-C(=O)-O- chain between the p-phenyl-ene ring and the tert-butyl group assumes a more regular W-shaped conformation for one substituent [O-C-C-C torsion angle = 171.9 (2)°] but a less regular W-shaped conformation for the other [torsion angle = 147.4 (2)°].

摘要

在标题分子C(37)H(38)O(6)中，芴体系五元环上的非稠合C原子与两个对亚苯基环相连，这些环将C(芳基)-C-C(芳基)角打开至113.1 (1)°。对亚苯基环与叔丁基之间的四原子-O-CH(2)-C(=O)-O-链，对于一个取代基呈现出更规则的W形构象[O-C-C-C扭转角 = 171.9 (2)°]，而对于另一个取代基则呈现出不太规则的W形构象[扭转角 = 147.4 (2)°]。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d575/3006837/163472bb3d37/e-66-o1705-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d575/3006837/163472bb3d37/e-66-o1705-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d575/3006837/163472bb3d37/e-66-o1705-fig1.jpg

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