...
首页> 外文期刊>Journal of Chemical Crystallography >Crystal Structure and Electronic Properties of a Piroxicam Derivative: A Combined X-Ray Analysis and Quantum Mechanical Studies
【24h】

Crystal Structure and Electronic Properties of a Piroxicam Derivative: A Combined X-Ray Analysis and Quantum Mechanical Studies

机译:吡罗昔康衍生物的晶体结构和电子性质:结合X射线分析和量子力学研究

获取原文
获取原文并翻译 | 示例
           

摘要

A piroxicam derivative, 4-acetamidobenzenesulfonate-2-methyl-N-(2-pyridal)-2H-1,2-benzothiazine-1,1-dioxide (2), has been synthesized and structurally characterized by X-ray analysis. The electronic structure of (2) was calculated at the DFT level using the hybrid exchange–correlation functional BLYP. The optimized molecular geometry of (2) corresponds closely to that obtained from the X-ray structure analysis. Intermolecular N–H···O and C–H···O hydrogen bonds connect the molecules in (2) forming a two-dimensional supramolecular frameworks in (011) plane, which are further linked via π···π interactions to generate a three dimensional architecture. The relative contribution of different interactions to Hirshfeld surface indicates that the H···H and O···H contacts can account for about 76 % of the total Hirshfeld surface area in (2). The HOMO–LUMO energy gap of 2.77 eV indicates a high kinetic stability of (2).
机译:合成了吡罗昔康衍生物4-乙酰氨基苯磺酸-2-甲基-N-(2-吡啶基)-2H-1,2-苯并噻嗪-1,1-二氧化物(2),并通过X射线分析对其结构进行了表征。 (2)的电子结构是使用混合交换-相关功能BLYP在DFT级别上计算的。 (2)的最佳分子几何形状与从X射线结构分析获得的最接近。分子间的N–H···O和C–H···O氢键连接(2)中的分子,在(011)平面上形成二维超分子框架,并进一步通过π··π相互作用连接至生成三维架构。不同相互作用对Hirshfeld表面的相对贡献表明,H···H和O···H接触可占(2)中Hirshfeld总表面积的约76%。 2.77 eV的HOMO-LUMO能隙表明(2)的高动力学稳定性。

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