3-Methyl-benzo[1,2-c:5,4-c']dichromen-6(8H)-one.

M Kayalvizhi,Adil I Khatri,G Vasuki,Shriniwas D Samant

doi:10.1107/s1600536814015001

M Kayalvizhi, Adil I Khatri + Show 2 more

Open Access

https://doi.org/10.1107/s1600536814015001

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Abstract

The title compound, C21H14O3, crystallizes with eight independent molecules (A–H) in the asymmetric unit which are arranged in four groups of two molecules each (AB, CD, EF and GH). In each molecule, the pyran-2-one ring is planar (r.m.s. deviations vary from 0.001 to 0.017 Å), while the pyran ring has a screw-boat conformation. In the crystal, molecules stack in two columns, along the [10-1] direction, composed of molecules C, B, E and G, and D, A, F and H. Molecules A and F are linked via C—H⋯O hydrogen bonds. In addition, there are a number of C—H⋯π contacts present involving all of the molecules. These interactions result in the formation of a three-dimensional network.

Highlights

The title compound, C21H14O3, crystallizes with eight independent molecules (A–H) in the asymmetric unit which are arranged in four groups of two molecules each (AB, CD, EF and GH)
Molecules stack in two columns, along the [101] direction, composed of molecules C, B, E and G, and D, A, F and H
Molecules A and F are linked via C—HÁ Á ÁO hydrogen bonds

Summary

Structure Reports Online

The title compound, C21H14O3, crystallizes with eight independent molecules (A–H) in the asymmetric unit which are arranged in four groups of two molecules each (AB, CD, EF and GH). Molecules stack in two columns, along the [101] direction, composed of molecules C, B, E and G, and D, A, F and H. There are a number of C—HÁ Á Á contacts present involving all of the molecules. These interactions result in the formation of a three-dimensional network. Related literature For the photosensitizing properties of coumarins, see: Kaidbey & Kligman (1981). For their medicinal applications, see: Kayalvizhi et al (2013).

Bruker Kappa APEXII CCD diffractometer

DÁ Á ÁA

Crystal data

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