A QUANTUM-CHEMICAL STUDY OF THE LIH + LIH - REVERSIBLE LIH2- + LI REACTION

被引:6
作者
HESS, BA [1 ]
ZAHRADNIK, R [1 ]
机构
[1] CZECHOSLOVAK ACAD SCI,J HEYROVSKY INST PHYS CHEM & ELECTROCHEM,CS-18223 PRAGUE 8,CZECHOSLOVAKIA
关键词
D O I
10.1002/qua.560400507
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
Parts of the potential energy surface of the title process and related processes have been investigated at the SCF/6-31G**, SCF/6-31++G**, and MP2/6-31++G** levels. The investigated reaction is exothermic (-6.23 kcal/mol, MP4/6-31++G**//MP2/6-31++G** levels, ZPE included): A linear intermediate radical anion, Li-H-Li-H.-, is significantly stabilized with respect to LiH + LiH.- (-38.74 kcal/mol, the same level as above). The BSSE at MP2/6-31++G**//MP2/6-31++G** amounts to 1.8 kcal/mol. The title process seems to be suitable for experimental study in molecular beams.
引用
收藏
页码:643 / 648
页数:6
相关论文
共 15 条
[1]   ON THE FORMATION OF C2H8(+) IN THE REACTION CH4(+)+CH4-]CH3+CH5(+) - A THEORETICAL-STUDY [J].
HAVLAS, Z ;
BAUWE, E ;
ZAHRADNIK, R .
CHEMICAL PHYSICS LETTERS, 1985, 121 (4-5) :330-333
[2]   THE MECHANISM OF THE REACTION CH4(+)+CH4 = CH5(+)+CH3 AS A FUNCTION OF ENERGY - RATE CONSTANTS AND PRODUCT DISTRIBUTIONS FOR THE REACTIONS OF CH4(+)+CD4 AND CD4(+)+CH4 AT 80-K AND 300-K [J].
HENCHMAN, M ;
SMITH, D ;
ADAMS, NG ;
PAULSON, JF ;
HERMAN, Z .
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 1989, 92 :15-36
[3]   STATE SELECTED ION-MOLECULE REACTIONS BY A TESICO TECHNIQUE .12. INTERNAL ENERGY-DEPENDENCE OF THE RELATIVE CROSS-SECTION AND MECHANISM BRANCHING OF THE REACTION CH4+(V)+CH4-]CH5++CH3 AND ITS ISOTOPIC VARIANTS [J].
HERMAN, Z ;
TANAKA, K ;
KATO, T ;
KOYANO, I .
JOURNAL OF CHEMICAL PHYSICS, 1986, 85 (10) :5705-5710
[4]   THEORETICAL-STUDY OF REACTIVITY OF METHANE, METHYL-FLUORIDE, AND METHYL-CHLORIDE - INTERACTION WITH THEIR RADICAL CATIONS AND PROTON DONORS [J].
HESS, BA ;
ZAHRADNIK, R .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1990, 112 (15) :5731-5735
[5]   STRUCTURE OF LIH DIMER AND ITS NEGATIVE-ION [J].
JORDAN, KD .
CHEMICAL PHYSICS LETTERS, 1976, 40 (03) :441-446
[6]   POTENTIAL-ENERGY SURFACE AND REACTION-MECHANISM FOR THE ION MOLECULE REACTION - CH4+CH4+-]CH3+CH5+ [J].
KAMIYA, K ;
MOROKUMA, K .
CHEMICAL PHYSICS LETTERS, 1986, 123 (04) :331-336
[7]  
LIAS SG, 1988, J PHYS CHEM REF D S1, V17
[8]  
MICHELS HH, IN PRESS INT J QUANT
[9]   ABINITIO ELECTRONIC-STRUCTURE OF ANIONS [J].
SIMONS, J ;
JORDAN, KD .
CHEMICAL REVIEWS, 1987, 87 (03) :535-555
[10]   PRODUCTION OF DIMER IONS M2(+) (M = CH4, H2O, COS, C2H2, C2H6, HCL, N2O AND CO) IN BINARY ION-MOLECULE REACTIONS [J].
SMITH, D ;
ADAMS, NG .
CHEMICAL PHYSICS LETTERS, 1989, 161 (01) :30-34