## Abstract The CASSCF method has been applied to some excited states of the BO molecule. Only portions of the full potential curves could be obtained with the help of the usual twoβstep procedure. It was possible to complete the curves and to consider other excited states by using an averaged fiel
Application of the natural transition orbital (NTO) method to excited states
β Scribed by K. Deguchi; K. Kanno; H. Miyagawa
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 319 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Using the natural transition orbital method of Day et al., we propose a method for the calculation of excited states when the ground state is given by a correlated wave function. This method is a natural extension of the electron-hole potential method of Morokuma and Iwata to a correlated system.
π SIMILAR VOLUMES
## Abstract The barrier to predissociation of the first excited states of NH~3~ (3__s__^1,3^ __A__) is computed from a truncated firstβorder wave function using the iterative natural orbital method. The results show that the barrier is lower than when calculated with RHF and the CI wave functions,
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The electronic structures of the excited states of a few substituted ethylenes in the planar and perpendicularly twisted forms were investigated by the RHF CI and DOD%NO CI methods in the INDO approximation. It was found that the htrer method provides reasonable descriptions of the lower-lying excit
The alternant molecular orbital method is a device for taking into account the horizontal correlation among electrons posessing different spins. A comparison with the configurationinteraction treatment suggests that in the case of aromatic hydrocarbons the method can yield reliable results only if t