Zobrazeno 1 - 10
of 12
pro vyhledávání: '"O. E. Taurian"'
Publikováno v:
Journal of chemical theory and computation. 3(4)
The well-known N lone-pair orientation effect on (1)JCC spin-spin coupling constants (SSCCs) in oximes and their derivatives was used to study how negative hyperconjugative interactions of type LP1(O) → σ*CC depend on ortho interactions involving
Autor:
Juan Carlos Cesco, Graciela Olga Giubergia, Ana Rosso, O. E. Taurian, F. S. Ortiz, Jorge E. Pérez, Claudia C. Denner
Publikováno v:
International Journal of Quantum Chemistry. 102:1056-1060
A new approach for evaluating the four-center bielectronic integrals (12|34), involving 1s Slater-type orbitals, is presented. The method uses the multiplication theorem for Bessel functions. The bielectronic integral is expressed in terms of a finit
Autor:
Jorge E. Pérez, O. E. Taurian, Ana Rosso, F. S. Ortiz, Claudia C. Denner, Graciela Olga Giubergia, Juan Carlos Cesco
Publikováno v:
International Journal of Quantum Chemistry. 99:70-79
This article presents a variation of the integral transform method to evaluate multicenter bielectronic integrals (12|34), with 1s Slater-type orbitals. It is proved that it is possible to define, out of the expression of (12|34) given by the integra
Autor:
Juan E. Peralta, Daniel Zaccari, Angel L. Esteban, Veronica Barone, Ernesto Díez, O. E. Taurian, Rubén H. Contreras
Publikováno v:
International Journal of Molecular Sciences, Vol 4, Iss 3, Pp 93-106 (2003)
International Journal of Molecular Sciences
Volume 4
Issue 3
Pages 93-106
International Journal of Molecular Sciences
Volume 4
Issue 3
Pages 93-106
The known solvent dependence of 1J(Cc,Hf) and 2J(C1,Hf) couplings in acetaldehyde is studied from a theoretical viewpoint based on the density functional theory approach where the dielectric solvent effect is taken into account with the polarizable c
Autor:
O. E. Taurian, Juan E. Peralta, Rubén H. Contreras, Veronica Barone, Daniel Zaccari, James P. Snyder
Publikováno v:
Molecular Physics. 100:705-715
The electronic origin of the influence of the anomeric effect (negative hyperconjugative interaction, NHI) on the Fermi contact (FC) term of 1 J(C, H) couplings has been studied from a theoretical point of view at the DFT-B3LYP level. The HN=CH2, mol
Publikováno v:
Journal of Molecular Structure. 556:263-273
In this work, several features of the polar bond–polarizable bond interaction are studied using an experimental and theoretical methodology. The NMR 13C chemical shifts for 1-CN,2-OCH3-naphthalene, 1-CHO,2-OCH3-naphthalene and 5-Cl,6-OCH3,8-NH2-qui
Autor:
Claudia C. Denner, Ana Rosso, Graciela Olga Giubergia, Juan Carlos Cesco, F. S. Ortiz, O. E. Taurian, Rubén H. Contreras, Jorge E. Pérez
Publikováno v:
Journal of Computational Chemistry. 20:604-609
Autor:
Claudia C. Denner, Ahmed Bouferguene, O. E. Taurian, Ana Rosso, Jorge E. Pérez, Juan Carlos Cesco, C.J. Alturria Lanzardo, F. S. Ortiz
This work introduces molecular basis sets considering only 1s Slater orbitals and 1s Gaussian orbitals. The main purpose is the construction of a stable atomic model, to be useful for carrying out molecular calculations; among many possibilities, a t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d9c8533c2af810e7aff20101f1d867b
https://doi.org/10.1016/b978-0-12-411544-6.00003-0
https://doi.org/10.1016/b978-0-12-411544-6.00003-0
Publikováno v:
The Journal of Chemical Physics. 86:5053-5059
The deformation electron density of KH(HCOO)2 has been studied from quantum mechanical ab initio MO‐LCAO‐SCF calculations and compared with X–N maps obtained at 120 K. The two formate groups are connected with a short noncentered hydrogen bond
Publikováno v:
International Journal of Quantum Chemistry. 26:121-130
In order to be useful for ionic crystals cluster calculations must be modified so as to simulate the crystal potential in a reasonable way. Two aspects of such calculations—the normalization of the orbitals and the construction of the coulomb poten