Theoretical study of hydrogen and halogen bond interactions of methylphosphines with hypohalous acids

被引:15
|
作者
Zabardasti, Abedien [1 ]
Kakanejadifard, Ali [1 ]
Goudarziafshar, Hamid [2 ]
Salehnassaj, Maryam [2 ]
Zohrehband, Zeinab [1 ]
Jaberansari, Fatemeh [1 ]
Solimannejad, Mohammad [3 ]
机构
[1] Lorestan Univ, Dept Chem, Khorramabad, Iran
[2] Ilam Univ, Fac Sci, Dept Chem, Ilam, Iran
[3] Arak Univ, Fac Sci, Dept Chem, Quantum Chem Grp, Arak 3815688349, Iran
关键词
Hydrogen bonding; Halogen bonding; Hypohalous acids; Phosphine; WEAK-INTERACTIONS; DIMERS; COMPLEXES; DESIGN; DIHALOGENS; TRIMERS; LIGAND; CL;
D O I
10.1016/j.comptc.2013.03.008
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Ab initio calculations were used to analyze the interactions between hypohalous acids (HOX; X = F, Cl, Br, I) and methylphosphine derivatives (PHnMe3-n, n = 0-3) at the MP2/6-311++G(2d,2p) level of theory. Interaction of HOX with PHnMe3-n lead to both hydrogen bond (HOXPHnMe3-n-HB) as well as halogen bond (HOXPHnMe3-n-XB) complexes. Stabilities of both HB and XB complexes increase with basicity of the phosphines that is larger for XB complexes. However HB complexes of a phosphine molecule with different HOX are in the same order of stabilities, but XB complexes of heavier hypohalous acids are more stable. Except for HOCl-PH3, HOCl-PH2Me and HOCl-PHMe2 systems, XB complexes have greater stabilities than their HB counterparts in other cases. Electron densities of complexes were characterized with the atoms-in-molecules (AIMs) methodology. The charge transfer within dimers was analyzed by means of natural bond orbitals (NBOS). (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:1 / 7
页数:7
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