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r-1,c-2,t-3,t-4-1,2-Bis(4-methoxy­phenyl)-3,4-bis(5-phenyl-1,3,4-oxa­diazol-2-yl)­cyclo­butane

✍ Scribed by Zhuang, Jun-Peng ;Zheng, Yan

Publisher
International Union of Crystallography
Year
2002
Tongue
English
Weight
241 KB
Volume
58
Category
Article
ISSN
1600-5368

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Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.005 A Ê Disorder in main residue R factor = 0.047 wR factor = 0.115 Data-to-parameter ratio = 13.5 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

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Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.005 A Ê R factor = 0.056 wR factor = 0.186 Data-to-parameter ratio = 14.4 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

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The title compound, C 19 H 18 N 2 O 4 S, was synthesized by the reaction of methyl (2-hydroxyphenyl)acetate and 3-(4-methylthio)phenyl-5-chloromethyl-1,2,4-oxadiazole. The structure exhibits intermolecular CÐHÁ Á ÁO hydrogen bonds and CÐ HÁ Á Á% interactions.

c-2,t-4-Bis(2-benzoxazol-2-yl)-r-1,t-3-b
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The title compound, C~34~H~32~N~4~O~2~, undergoes a reversible [2+2] photoreaction with 1-(2-benzoxazol-2-yl)-2-bis[4-(dimethylamino)phenyl]ethane (NBE). Through intermolecular head-to-tail [2+2] photocycloaddition of NBE, the title compound displays a centrosymmetric molecular structure in the crys