The fourier transform method for calculation of atomic and molecular two-centre integrals is used to calculate both analytically and numerically one-and two-centre Coulombic integrals. The subroutines are programmed in Fortran and based on a previously published code, using algebraic manipulation te
General subroutines for the calculation of atomic and molecular two-centre integrals
✍ Scribed by J.P. Hansen
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 400 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0010-4655
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✦ Synopsis
Fourier transform method for calculation of atomic and molecular two-centre integrals is programmed in Fortran, using algebraic manipulation techniques. The subroutines can be directly included in numerical codes and provide efficient and general methods for the calculation of two-centre integrals for any quantum numbers or geometry.
📜 SIMILAR VOLUMES
Using expansion formulas for the charge-density over Slater-type orbitals (STOs) obtained by the one of authors [I. I. Guseinov, J Mol Struct (Theochem) 1997, 417, 117] the multicenter molecular integrals with an arbitrary multielectron operator are expressed in terms of the overlap integrals with t
## Abstract The performances of the algorithms employed in a previously reported program for the calculation of integrals with Slater‐type orbitals are examined. The integrals are classified in types and the efficiency (in terms of the ratio accuracy/cost) of the algorithm selected for each type is
In a previous article (J. Fernandez Rico, R. Upez and G. Ramirez, J. Comp. Chem., 9, 790 (1988)) we have proposed the calculation of molecular integrals involving STOs by means of some recurrence relations which use two sets (h and H) of overlap integrals (basic matrices). In the present paper, we d
## Abstract Starting from the bond polarization theory (BPT), a new semiempirical method for the calculation of net atomic charges is developed. The bond polarization theory establishes a linear dependence of atomic charges from the bond polarization energy. This energy is calculated from the hybri