The paper discusses the results of X-ray diffraction studies of 2,4,6,8-tetraazabicyclo[3.3.0.]octane-3,7-dione (glycoluril) and its derivatives. Geometrical characteristics of glycoluril derivative molecules are analyzed depending on the type of the substituent and the formation of hydrogen bonds in crystals.

中文翻译：

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甘脲及其衍生物的XRD结构参数分析

本文讨论了 2,4,6,8-四氮杂双环[3.3.0.]辛烷-3,7-二酮（甘脲）及其衍生物的 X 射线衍射研究结果。根据取代基的类型和晶体中氢键的形成，分析甘脲衍生物分子的几何特征。