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Title: | 8-Iodo-5,7-dimeth-oxy-4-methyl-2H-chromen-2-one | Authors: | Pereira Silva, P. S. Parveen, Mehtab Ali, Akhtar Silva, M. Ramos |
Keywords: | single-crystal X-ray study; T = 293 K; mean (C–C) = 0.004 A°; R factor = 0.021; wR factor = 0.090; data-to-parameter ratio = 18.9 | Issue Date: | 1-Apr-2011 | Publisher: | International Union of Crystallography | Project: | SFRH/BD/38387/2008 | metadata.degois.publication.title: | Acta Crystallographica Section E: Structure Reports Online | metadata.degois.publication.volume: | 67 | metadata.degois.publication.issue: | Pt 4 | Abstract: | In the title compound, C(12)H(11)IO(4), the C and O atoms of both meth-oxy groups lie very close to the mean plane of the six C atoms of the benzene ring. The O and C atoms of the group lying closest to the I atom are 0.012 (3) and 0.022 (4) Å, respectively, out of the mean plane. For the other meth-oxy group, the corresponding distances are 0.020 (3) and 0.078 (4) Å. In the crystal, there are only very weak inter-molecular C-H⋯O hydrogen bonds and O⋯I contacts [3.080 (2) Å]. The mol-ecules are approximately parallel to (100), forming a layered structure. | URI: | http://hdl.handle.net/10316/109979 | ISSN: | 1600-5368 | DOI: | 10.1107/S1600536811007549 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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8Iodo57dimethoxy4methyl2Hchromen2oneActa-Crystallographica-Section-E-Structure-Reports-Online.pdf | 360.53 kB | Adobe PDF | View/Open |
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