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3-(Benzoxazol-2-yl)­cromem-2-one

✍ Scribed by Guilardi, Silvana ;Machado, Antonio Eduardo da Hora ;Resende, Jackson Antônio Lamounier Camargos ;Franca, Eduardo de Faria

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

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✦ Synopsis

Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.003 A Ê R factor = 0.055 wR factor = 0.120 Data-to-parameter ratio = 16.4 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 = 120 K Mean '(C±C) = 0.003 A Ê R factor = 0.048 wR factor = 0.121 Data-to-parameter ratio = 9.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

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trans-4-[2-(1,3-Benzoxazol-2-yl)ethenyl]
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The title molecule, C 16 H 11 NO 2 , is planar with an r.m.s. deviation of 0.0362 (4) A ˚. The benzene ring and benzoxazole ring system adopt a trans configuration with respect to the central double bond.