...
首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Carbonyl Boron and Related Systems:An ab Initio Study of B-X and YB=BY Where X=He,Ne,Ar,Kr,CO,CS,N_2 and Y=Ar,Kr,CO,CS,N_2
【24h】

Carbonyl Boron and Related Systems:An ab Initio Study of B-X and YB=BY Where X=He,Ne,Ar,Kr,CO,CS,N_2 and Y=Ar,Kr,CO,CS,N_2

机译:羰基硼及其相关系统:从头算研究B-X和YB = BY,其中X = He,Ne,Ar,Kr,CO,CS,N_2和Y = Ar,Kr,CO,CS,N_2

获取原文
获取原文并翻译 | 示例
           

摘要

Using the coupled-cluster methodology and large correlation consistent basis sets,we have examined the BX and YBBY (~1SUM_g~+) molecules,where X=He,Ne,Ar,Kr,CO,CS,and N_2 and Y=Ar,Kr,CO,CS,and N_2.For the B-X series we have constructed full potential energy curves reporting total energies,equilibrium geometries,binding energies,and also spectroscopic constants for the diatomic sequence.The B-CO,B-CS,and B-N_2 ground states are of ~4SUM~- and ~2II symmetries,respectively,with the ~4SUM~- states having remarkably strong binding energies with respect to their adiabatic fragments.For all the triatomics the first excited ~4P state of B plays an instrumental role in the binding process,while the bonding mechanism in either the ~2II or ~4SUM~- symmetries is due to charge transfer to the empty 2p_z orbital of the B atom.The YBBY series results by singlet coupling two B-Y ~4SUM~- moieties,leading to acetylene-like YB ident to BY systems of ~1SUM_g~+ symmetry.
机译:使用耦合聚类方法和大的相关一致基集,我们检查了BX和YBBY(〜1SUM_g〜+)分子,其中X = He,Ne,Ar,Kr,CO,CS,N_2和Y = Ar, Kr,CO,CS和N_2。对于BX系列,我们绘制了完整的势能曲线,报告了总能量,平衡几何形状,结合能以及双原子序列的光谱常数。B-CO,B-CS和B -N_2基态分别具有〜4SUM〜-和〜2II对称性,〜4SUM〜-态相对于其绝热片段具有非常强的结合能。对于所有三原子,B的第一个激发〜4P态起着在〜2II或〜4SUM〜-对称性中的键合机理是由于电荷转移到B原子的空2p_z轨道而引起的。YBBY系列是通过单重耦合两个BY〜4SUM〜-产生的部分,导致类似乙炔的YB与〜1SUM_g〜+对称的BY系统相同。

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