ITP OpenIR  > 理论物理所2015年知识产出
Covalent intermolecular interaction of the nitric oxide dimer (NO)(2)
Zhang, H; Zheng, GL; Lv, G; Geng, YZ; Ji, Q; Ji, Q (reprint author), Hebei Univ Technol, Sch Sci, Tianjin 300401, Peoples R China.
2015
发表期刊CHINESE PHYSICS B
卷号24期号:9页码:93101
文章类型Article
摘要Covalent bonds arise from the overlap of the electronic clouds in the internucleus region, which is a pure quantum effect and cannot be obtained in any classical way. If the intermolecular interaction is of covalent character, the result from direct applications of classical simulation methods to the molecular system would be questionable. Here, we analyze the special intermolecular interaction between two NO molecules based on quantum chemical calculation. This weak intermolecular interaction, which is of covalent character, is responsible for the formation of the NO dimer, (NO)(2), in its most stable conformation, a cis conformation. The natural bond orbital (NBO) analysis gives an intuitive illustration of the formation of the dimer bonding and antibonding orbitals concomitant with the breaking of the pi bonds with bond order 0.5 of the monomers. The dimer bonding is counteracted by partially filling the antibonding dimer orbital and the repulsion between those fully or nearly fully occupied nonbonding dimer orbitals that make the dimer binding rather weak. The direct molecular mechanics (MM) calculation with the UFF force fields predicts a trans conformation as the most stable state, which contradicts the result of quantum mechanics (QM). The lesson from the investigation of this special system is that for the case where intermolecular interaction is of covalent character, a specific modification of the force fields of the molecular simulation method is necessary.
关键词Nitric Oxide Dimer Intermolecular Interaction Natural Orbital Covalent Bond
学科领域Physics
资助者National Natural Science Foundation of China [90403007, 10975044, 11147103] ; National Natural Science Foundation of China [90403007, 10975044, 11147103] ; Key Subject Construction Project of Hebei Provincial Universities, China ; Key Subject Construction Project of Hebei Provincial Universities, China ; Research Project of Hebei Education Department, China [Z2012067, Z2011133] ; Research Project of Hebei Education Department, China [Z2012067, Z2011133] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF211CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF211CJ1] ; National Natural Science Foundation of China [90403007, 10975044, 11147103] ; National Natural Science Foundation of China [90403007, 10975044, 11147103] ; Key Subject Construction Project of Hebei Provincial Universities, China ; Key Subject Construction Project of Hebei Provincial Universities, China ; Research Project of Hebei Education Department, China [Z2012067, Z2011133] ; Research Project of Hebei Education Department, China [Z2012067, Z2011133] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF211CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF211CJ1]
DOIhttp://dx.doi.org/10.1088/1674-1056/24/9/093101
关键词[WOS]NO DIMER ; MOLECULAR-DYNAMICS ; ELECTRONIC STATES ; FORCE-FIELD ; ENERGIES ; N2O2
收录类别SCI
语种英语
资助者National Natural Science Foundation of China [90403007, 10975044, 11147103] ; National Natural Science Foundation of China [90403007, 10975044, 11147103] ; Key Subject Construction Project of Hebei Provincial Universities, China ; Key Subject Construction Project of Hebei Provincial Universities, China ; Research Project of Hebei Education Department, China [Z2012067, Z2011133] ; Research Project of Hebei Education Department, China [Z2012067, Z2011133] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF211CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF211CJ1] ; National Natural Science Foundation of China [90403007, 10975044, 11147103] ; National Natural Science Foundation of China [90403007, 10975044, 11147103] ; Key Subject Construction Project of Hebei Provincial Universities, China ; Key Subject Construction Project of Hebei Provincial Universities, China ; Research Project of Hebei Education Department, China [Z2012067, Z2011133] ; Research Project of Hebei Education Department, China [Z2012067, Z2011133] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF211CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF211CJ1]
WOS类目Physics, Multidisciplinary
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20877
专题理论物理所2015年知识产出
通讯作者Ji, Q (reprint author), Hebei Univ Technol, Sch Sci, Tianjin 300401, Peoples R China.
推荐引用方式
GB/T 7714
Zhang, H,Zheng, GL,Lv, G,et al. Covalent intermolecular interaction of the nitric oxide dimer (NO)(2)[J]. CHINESE PHYSICS B,2015,24(9):93101.
APA Zhang, H,Zheng, GL,Lv, G,Geng, YZ,Ji, Q,&Ji, Q .(2015).Covalent intermolecular interaction of the nitric oxide dimer (NO)(2).CHINESE PHYSICS B,24(9),93101.
MLA Zhang, H,et al."Covalent intermolecular interaction of the nitric oxide dimer (NO)(2)".CHINESE PHYSICS B 24.9(2015):93101.
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