Cation᎐ interactions have been suggested as a key determinant of aromatic amino acid behavior. These interactions can be modeled as an electrostatic quadrupole moment from the atoms of the ring interacting with the environment. The preference of aromatic amino acids for the interface of membrane bil
Molecular calculations with B functions
✍ Scribed by E. O. Steinborn; H. H. H. Homeier; I. Ema; R. Lopez; G. Ramírez
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 279 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0020-7608
No coin nor oath required. For personal study only.
✦ Synopsis
A program for molecular calculations with B functions is reported and its performance is analyzed. All the one-and two-center integrals and the three-center nuclear attraction integrals are computed by direct procedures, using previously developed algorithms. The three-and four-center electron repulsion integrals are computed by means of Gaussian expansions of the B functions. A new procedure for obtaining these expansions is also reported. Some results on full molecular calculations are included to show the capabilities of the program and the quality of the B functions to represent the electronic functions in molecules.
📜 SIMILAR VOLUMES
The convergence of numerical methods to compute the bound states of w . the one-dimensional Schrodinger equation H s E in 0, ϱ by means of numerical ¨w x solutions of the Dirichlet eigenproblem H s E in a box 0, R , is studied. It Rn R R R R Ä 4 ϱ is seen that approximating sequences that converge c
Symbolic calculation is applied to the evaluation of molecular integrals over Slater orbitals (STOs). A recurrence scheme is developed for some new auxiliary functions that facilitate this work. Closed expressions are developed independently for use in spot checks. A table of formulas for the indivi