Very acc~atc ab initio calculations using gaussian basis sets and including valence shell correlation axe performed for the potential energy surfaces of the two lowest states of the BH? radical. The calculated molecuku properties are in good agreement with experimental results except for tk O-O tran
Ab-initio calculations of small hydrides including electron correlation: Calculation of some points of the potential surface of BH+2
โ Scribed by M. Jungen
- Publisher
- Elsevier Science
- Year
- 1970
- Tongue
- English
- Weight
- 177 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
With an IEPA-method ("Independent Electron Pair Approximation") we estimate the total energy of BH; (E x -25.605 au)and its B-H equilibrium distance (ye w 2.22 au). In addition, for each of the three normal modes we caIcuIate five points of the potentiaI surface. Analytical expressions are given for the potential curves in the vicinity of the equilibrium configuration. Flirthermore vibration frequencies, force constants, and the reacticn energy for BH2 d Be2 + H-are calculated.
๐ SIMILAR VOLUMES
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Properties of the stationary points on the potential energy surface of the ClHCl and HClz systems have been calculated by several ab initio methods using large basis sets with extensive treatment of electron correlation. The most accurate results are consistent with experimental barrier estimates fo
## Several properties of Hz0 molecule are evaluated by employing fairly accurate wavefunctions of SCF and C-1. type and the results are compared with experiments.
We present first results for the Renner-Teller-induced predissociation of HCO( A 'A" ) using new ab initio potential energy surfaces for the W(\*A" ) and the R('A' ) states. The quantum mechanical dynamics calculations are performed in the timedependent representation with the CO bond distance being