𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The potential energy surface of H4SiO4

✍ Scribed by Wagner B. De Almeida; Patrick J. O'Malley


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
352 KB
Volume
178
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis


Three "true" minimum energy conformations and several transition state structures have been located on the potential energy surface for the H,SiO, molecule, calculated at the SCF/3-21G level of theory. Geometry optimisation for each stationary point has been performed with inclusion of polarization functions using the STO/6-3 lG* basis set. At the HF/6-31G* level of theory three minimum energy structures all possessing C, point group symmetry are located. Only one symmetric stationary point, possessing Dti symmetry, is located as a first-order transition state structure.


πŸ“œ SIMILAR VOLUMES


The Jahnβ€”Teller potential energy surface
✍ Pavel Jungwirth; Petr ČÑrsky; Thomas Bally πŸ“‚ Article πŸ“… 1992 πŸ› Elsevier Science 🌐 English βš– 545 KB

CI-SD/ [ 3s2p] and MCSCF/ [ 3s2p] calculations were performed in order to obtain detailed information on the potential energy surface of Hz. Jahn-Teller distortions from the square geometry of H: are studied and it is shown that the optimal distorted geometries are slightly different from those obta

Potential energy surface of B4 and total
✍ J.M.L. Martin; J.P. FranΓ§ois; R. Gijbels πŸ“‚ Article πŸ“… 1992 πŸ› Elsevier Science 🌐 English βš– 716 KB

The potential energy surface of B4 has been studied ab initio using extended basis sets and coupled-cluster methods. The ground state ('A,,) is a singlet square that undergoes pseudo-Jahn-Teller distortion to a rhombic structure ('As), but the energy gain is so small that the effective structure wil

Potential energy surface of the Al+ (H2O
✍ Jan HruΕ‘Γ‘k; Detlef StΓΆckigt; Helmut Schwarz πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 393 KB

The reaction of 'bare' Al+ with water has been examined by ab initio MP2 and QCISD (T ) methods. The Al( Hz0 ) + adduct is found to correspond to the global minimum with a bond dissociation energy of BDE = 28.8 kcal/mol. The inserted HAlOH+ isomer is less stable by 8.6 kcal/mol. Both isomers are sep

The H2O++ Ground State Potential Energy
✍ P.R. Bunker; Ota Bludsky; Per Jensen; S.S. Wesolowski; T.J. Van Huis; Y. Yamaguc πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 97 KB

At the correlation-consistent polarized-valence quadruple-zeta complete active space self-consistent field second-order configuration interaction level of ab initio theory (cc-pVQZ CASSCF-SOCI), we calculated 129 points on the ground electronic state potential energy surface of the water dication H(