The crystal structure of angenomalin (8,9-dihydro-8-(1-methylethenyl)-2 H-furo[2,3-h]-1-benzopyran-2-one) was determined by X-ray structure analysis. It crystallizes in the orthorhombic space group P212121 with cell parameters a = 5.210(1), b = 10.407(1), c = 20.478(2) A. The structure was solved by direct methods and refined to R = 0.037. The coumarin moiety is planar and the crystal structure is stabilized by van der Waals interactions.

中文翻译：

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Angenomalin的晶体结构——一种呋喃香豆素

Angenomalin (8,9-dihydro-8-(1-methylethenyl)-2 H-furo[2,3-h]-1-benzopyran-2-one) 的晶体结构通过 X 射线结构分析确定。它在晶胞参数 a = 5.210(1), b = 10.407(1), c = 20.478(2) A 的正交空间群 P212121 中结晶。通过直接方法解析结构并精炼为 R = 0.037。香豆素部分是平面的，晶体结构通过范德华相互作用稳定。