...
首页> 外文期刊>Chemical Physics Letters >Modelling the C-13 NMR chemical shifts of C-84 fullerenes
【24h】

Modelling the C-13 NMR chemical shifts of C-84 fullerenes

机译:模拟C-84富勒烯的C-13 NMR化学位移

获取原文
获取原文并翻译 | 示例
           

摘要

Simulations of C-13 NMR shielding constants for fullerenes, based on the density-functional based tight-binding (DFTB) and individual gauge for local orbitals (IGLO) methods, are presented. This IGLO-DFTB model incorporates a correction scheme for the energies of the virtual states together with one empirical scaling factor. The IGLO-DFTB chemical shifts for a large test set of fullerenes are well correlated with those from ab initio calculations. Chemical shifts of the 24 isolated-pentagon isomers C-84 are evaluated and compared with recent experimental work. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 31]
机译:提出了基于密度泛函的紧密结合(DFTB)和局部轨道的单个量规(IGLO)方法的富勒烯C-13 NMR屏蔽常数的模拟。该IGLO-DFTB模型结合了一种针对虚拟状态能量的校正方案以及一个经验比例因子。大型富勒烯测试集的IGLO-DFTB化学位移与从头算计算的相关性很好。评价了24种分离的五边形异构体C-84的化学位移,并将其与最近的实验工作进行了比较。 (C)2000 Elsevier Science B.V.保留所有权利。 [参考:31]

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