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Crystal structure of 2-(3,4-di-meth-oxy-phen-yl)-3-hy-droxy-4H-chromen-4-one.

ABSTRACT: In the title compound, C17H14O5, the dimeth-oxy-substituted benzene ring is twisted relative to the 4H-chromenon skeleton (r.m.s. deviation = 0.015?Å) by 5.2?(4)°. The C atoms of the meth-oxy groups lie close to the plane of their attached benzene ring [deviations = 0.036?(3) and 0.290?(3)Å for the meta and para substituents, respectively]. An intra-molecular O-H?O hydrogen bond closes an S(5) ring. In the cystal, inversion dimers linked by pairs of O-H?O hydrogen bonds generate R 2 (2)(10) loops and C-H?O inter-actions connect the dimers into [010] chains.

SUBMITTER: Yoo JS 

PROVIDER: S-EPMC4186158 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature

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Crystal structure of 2-(3,4-di-meth-oxy-phen-yl)-3-hy-droxy-4H-chromen-4-one.

Yoo Jin Sil JS   Lim Yoongho Y   Koh Dongsoo D  

Acta crystallographica. Section E, Structure reports online 20140813 Pt 9

In the title compound, C17H14O5, the dimeth-oxy-substituted benzene ring is twisted relative to the 4H-chromenon skeleton (r.m.s. deviation = 0.015 Å) by 5.2 (4)°. The C atoms of the meth-oxy groups lie close to the plane of their attached benzene ring [deviations = 0.036 (3) and 0.290 (3)Å for the meta and para substituents, respectively]. An intra-molecular O-H⋯O hydrogen bond closes an S(5) ring. In the cystal, inversion dimers linked by pairs of O-H⋯O hydrogen bonds generate R 2 (2)(10) loop  ...[more]

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