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(
Potential energy surface of the Al+ (H2O) cluster
✍ Scribed by Jan Hrušák; Detlef Stöckigt; Helmut Schwarz
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 393 KB
- Volume
- 221
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
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 separated by a significant barrier (63.8 kcal/mol) and thus should exist as solitary molecules in the gas phase.
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