An extensive investigation of the basis-set effect on the predicted geometry of the redox pair [ R U ( N H ~) ~] ~+ / ~+ is presented. Basis sets where the core electrons have been replaced with a relativistic core potential as well as all-electron basis sets were tested. Best agreement with observa
Theoretical studies of molecular complexes: a probe into basis set and correlation effects
โ Scribed by Roman Osman; Sid Topiol; Harel Weinstein; James E. Eilers
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 420 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
We mvestlgate the effect of bans set size, correlatton effects and mterplamu separation on the theoretical electronic structure of stacking complexes of para-and meta-hydroxyamhne wth formamidmmm cation, constructed as analogs for the complexes of 5-and C-hydroxytryptamme wth unidazohum cation
๐ SIMILAR VOLUMES
this study, an evaluation has been made of the performance of the minimal STO-3G and the extended 4-3 iG basis sets, and of the effect of the rigid monomer r&riction in the calculation of the relative proton affinities of the bases H2C0, CH&HO, and HCOOH. The best agreement between the computed and
Minimal basis set LCAO SCF calculations on SzN2, (SN)z, and (SN)3 have been carried out. A number of electronic configurations for each species were investigated. Triplet states of SzNz and <SN)= and a quartet state of (SN)3 were found to be lowest in energy at rhis level of calculation. The S2N2 mo
The gauge dependence of the molecular magnetic susceptibility, of the 13C and "0 chemical shifts, and of their lirst-order dependence on an applied uniform electric field, has been examined in detail for carbon monoxide. We have calculated magnetic properties with a number of basis sets, ranging fro
A variety of basis sets have been used for geometric and electronic structure studies. Electronic effects were measured using integrated spatial electron populations (ISEP). The two largest basis sets used, 6-31G\* and DZ+P, give significantly different results. Use of two d-orbital sets (6-31G\*[dd