首页> 外文期刊>Acta Crystallographica, Section B. Structural Science >Experimental electron-density study of 4-cyanoimidazolium-5-olate at 120 K
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Experimental electron-density study of 4-cyanoimidazolium-5-olate at 120 K

机译:4-氰基咪唑-5-油酸酯在120 K的实验电子密度研究

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This paper presents an analysis of the electron density in 4-cyanoimidazolium-5-olate, determined by the rigid pseudoatom model from accurate X-ray data measured at 120 K. A comparison of the electrostatic potential between experiment and theory is given for the isolated molecule. The results confirm the typical mesoionic electron distribution of the title compound and the presence of three hydrogen bonds in the crystal structure. The atomic charges and molecular dipole moment derived hem the ab initio Hartree-Fock method are close to those obtained from the multipole model, which includes the kappa radial parameters. Electrostatic energies are also calculated for hydrogen bonding and molecular stacking interactions. [References: 17]
机译:本文通过刚性假原子模型,根据在120 K下测得的准确X射线数据,对4-氰基咪唑-5-油酸酯中的电子密度进行了分析。比较了实验与理论之间的静电势分子。该结果证实了标题化合物的典型的中性离子电子分布以及晶体结构中三个氢键的存在。从头算起采用Hartree-Fock方法获得的原子电荷和分子偶极矩与从多极模型获得的原子电荷和分子偶极矩非常接近,其中包括kappa径向参数。还计算了氢键和分子堆叠相互作用的静电能。 [参考:17]

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