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6,8 - 二碘 - 5,7 - 二甲氧基 - 4 - 甲基香豆素

6,8-Diiodo-5,7-dimeth-oxy-4-methyl-coumarin.

作者信息

Pereira Silva P S, Parveen Mehtab, Khanam Zakia, Ali Akhtar, Ramos Silva M

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2010 Mar 31;66(Pt 4):o988. doi: 10.1107/S1600536810011360.

DOI:10.1107/S1600536810011360
PMID:21580784
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2983982/
Abstract

In the title compound, C(12)H(10)I(2)O(4), the meth-oxy groups are twisted considerably with respect to the plane of the aromatic ring [CH(3)-O-C-C torsion angles = -85.9 (3) and -92.8 (3)°]. In the crystal, mol-ecules are linked by weak C-H⋯O hydrogen bonds and O⋯I contacts [3.194 (2) Å].

摘要

在标题化合物C₁₂H₁₀I₂O₄中，甲氧基相对于芳环平面有较大扭曲[CH₃ - O - C - C扭转角 = - 85.9(3)°和 - 92.8(3)°]。在晶体中，分子通过弱C - H⋯O氢键和O⋯I接触[3.194(2) Å]相连。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0442/2983982/aa8474945855/e-66-0o988-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0442/2983982/94ac6c4cc651/e-66-0o988-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0442/2983982/aa8474945855/e-66-0o988-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0442/2983982/94ac6c4cc651/e-66-0o988-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0442/2983982/aa8474945855/e-66-0o988-fig2.jpg

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