Ab iw?ioUIIF calculations using a minimal basis set of orbitals for the radicals H.-,S, H9S', NHzi, =+, cn3and NH7 predict the h)Terfine coupling constants to all nuclei with a consiCknt rr&urac-lf SCP ato6ic orbital: are used. Recently [l] it has been suggested that there is generally poor agreemen
Ab initio calculation of equilibrium geometry and hyperfine coupling constants of the cyclopentane cation
β Scribed by M.B. Huang; S. Lunell; A. Lund
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 439 KB
- Volume
- 99
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
The equilibrium geometry and hyperfime coupling constants of the cyclopentane cation have been calculated by the UHF method, within the ab initio MO LCAO SCF approximation. A non-planar carbon framework of Cs symmetry was found with one carbon atom out of the &me of the others. The geometry and the calcuiated isotropic constants sive support to the ESR identification of the ion.
π SIMILAR VOLUMES
An accurate equilibrium geometry has been obtained for HCCF by combination of experimental and ab initio data at the CCSD(T) level: r,(CH) = 1. 1.1961 A and R\*,(CF) = 1.2765 A. Calculated and experimental spectroscopic constants for various isotopomers of monofluoroacetylene compare well with each
The equilibrium geometries of NCCN and CNCN were calculated from experimental ground-state rotational constants and ab initio values for the vibration-rotation coupling constants. For NCCN. R,,(NC)=1.1578(5) A and Rze(CC)= 1.3839(5) A were obtained, where estimated error bars are given in parenthese
## Abstract An __ab initio__ SCF calculation of 42 points of the energy hypersurface of the fluoronium ion is presented using a contracted F(5__s__/3p), H(2s) gaussian basis set. In its equilibrium structure a bond length of 1.812 a.u. and a HFH bond angle of 127.2Β° are predicted. The calculated vi