Two ab initio (ROHF and MPZ), one local (SVWN), four hybrid (BHandH, BHandHLYP, Becke3LYP, and Becke3P86), and two nonlocal (BLYP and BP86) density functional theory (DFT) methods are used for calculating the dissociation energies of molecules that contain H-0, 0-0 and 0-C bonds. The sensitivity to
Bond functions for ab initio calculations on polyatomic molecules. Molecules containing C, N, O and H
β Scribed by Daniel Neisius; Georges Verhaegen
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 435 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
β¦ Synopsis
hameters (exponent and posItIon) have been optunlzsd for bond funcrions and lone-pau funchons to be added to basis sets 6-31G Smgle average values are proposed for C-H N-H and O-H.
π SIMILAR VOLUMES
## 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.
A semiempirically parameterized version of the extended Huckel molecular orbital method has been combined with an efficient quasi-Newton Broyden-Fletcher-Goldfarb-Shannon (BFGS) optimization algorithm to obtain accurate geometries for compounds containing H, C, N, 0, and F. The requirement of only o
## Abstract A new intermolecular force field for nitrogen atoms in organic molecules was derived from a training dataset of 76 observed azahydrocarbon crystal structures and 11 observed heats of sublimation. The previously published W99 force field for hydrogen, carbon, and oxygen was thus extended