The variational method proposed earlier has been generalized, using a trial function of the form: I) = (A, + Cshsm,)I)o in which m, = r2P+'C?, s standing for a triplet ( p , I , m ) and implemented into the program Hondo-8.4. The second-order density matrices are used to take into account the mono a
Computation of accurate electronic molecular polarizabilities
β Scribed by Voisin, Christophe; Cartier, Alain; Rivail, Jean Louis
- Book ID
- 111677119
- Publisher
- American Chemical Society
- Year
- 1992
- Tongue
- English
- Weight
- 825 KB
- Volume
- 96
- Category
- Article
- ISSN
- 0022-3654
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The variational method for the calculation of the electronic polarizability of molecules within the NDDO-based semiempirical MO methods MNDO, AM1, and PM3 was parametrized to improve its accuracy. A training set of 156 compounds was used to fit 34 parameters simultaneously for 12 elements using a si
A new algorithm involving the calculation of the solid angle of a molecule about a point as a measure of steric size has been developed. The algorithm calculates the total solid angle in a stepwise fashion, summing all regions of individual atom solid angles and overlapped atoms, taking into account