The many-body perturbation theory and the coupled cluster method with first-order correlation orbitals are used to study the structure of the linear Cs molecule. Calculations produce the equilibrium geometry with the outer and inner bond lengths equal to 1.294 and 1.287 A, respectively. This corresp
C2H2CO complex. Ab initio calculations with the coupled-cluster method and first-order correlation orbitals
✍ Scribed by Ludwik Adamowicz
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 459 KB
- Volume
- 192
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
Three equilibrium conformers are identified for the &Hz-CO complex. Coupled-cluster calculations with the first-order correlation orbitals indicate that the two linear structures, i.e. carbon-and oxygen-bonded, are isoenergetic and should coexist in the gas phase. However, due to smaller internal flexibility, the carbon-bonded complex should have a more definite structure.
📜 SIMILAR VOLUMES
This article shows that with our Hylleras-functional based method' for generating correlation orbitals, we can determine electronic structures for small polyatomic systems very accurately. The procedure is ab initio, uses conventional Gaussian basis sets, and solves the electronic Schrodinger equati