...
首页> 外文期刊>Crystal growth & design >Structural and thermodynamic features of three stable crystal forms of temazepam: A sedative drug
【24h】

Structural and thermodynamic features of three stable crystal forms of temazepam: A sedative drug

机译:替马西m的三种稳定晶型的结构和热力学特征:镇静药

获取原文
获取原文并翻译 | 示例
           

摘要

Two anhydrous crystal forms (Form X and Form VI) of temazepam were determined by single crystal X-ray diffraction and compared with the crystal structure of the literature crystal form, Form 0. All three polymorphic forms have Z′ > 1. Forms 0 and VI reveal a self-inclusion host-guest type crystal packing whereas Form X shows a layered 3D-packing arrangement. The three polymorphic forms are monotropically related, and their relative thermodynamic stability is in the following order: Form 0 > Form X > Form VI. This study further reveals the origin of the thermodynamically more stable form (Form 0) and evaluates its intriguing structural and thermodynamic features with two other stable crystal forms: Forms X and VI, respectively.
机译:通过单晶X射线衍射确定了替马西m的两种无水晶体形式(X型和VI型),并将其与文献记载的晶体形式0的晶体结构进行比较。所有三种多晶型形式的Z'> 1。 VI显示了自我包容的主客体型晶体堆积,而晶型X显示了分层的3D堆积排列。三种多晶型形式是单向相关的,它们的相对热力学稳定性按以下顺序排列:形式0>形式X>形式VI。这项研究进一步揭示了热力学上更稳定的晶型(晶型0)的起源,并评估了其有趣的结构和热力学特征以及另外两种稳定的晶型:X和VI型。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号