Channel coupling theory of molecular structure: Explanation and elimination of unphysical results
โ Scribed by W.K. Ford; J. Shertzer; F.S. Levin
- Book ID
- 103022747
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 483 KB
- Volume
- 96
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
โฆ Synopsis
Earlier (LCAO) structure calculations for HG ungerade and Hz triplet states based on the channel coupling array (CCA) theory of many-particle collisions have yielded unphysical potential energy curves. It is shown herein for H; that this is a result of not requiring the CCA wavefunction components to obey a certain boundary condition. A simple ansatz obeying this condition is constructed and shown to yield a physically correct. approximate u_ngerade potential energy. Collision problems involving three or more particles
๐ SIMILAR VOLUMES
Density functional theory (DFT) calculations have been carried out for a variety of iron and manganese porphyrin complexes with metal oxidation states of +3 and above. In general, DFT gives very good descriptions of molecular structure and electron distributions, but appears less reliable in predict