Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Keisaku Ishii"'
Autor:
Keisaku Ishii
Publikováno v:
International Journal of Quantum Chemistry. 114:1486-1494
In this article, based on the former accurate and precise ab initio calculation results for potassium nitride (KN) and calcium nitride (CaN), I revisit the possibilities and potentials of KN and CaN as the best candidate for molecular multiple quantu
Autor:
Keisaku Ishii, F. Ayala-Mató, Jesús Rubayo-Soneira, Juan Carlos Castro-Palacio, Koichi Yamashita
Publikováno v:
The Journal of Physical Chemistry A. 114:9673-9680
Molecular dynamics simulations of NO-doped Ar solid upon Rydberg photoexcitation of the impurity have been carried out taking into account angular dependent potential energy surfaces (PESs) in the ground and excited states. To go beyond isotropic pot
Publikováno v:
Theoretical Chemistry Accounts. 120:191-198
An ab initio molecular dynamics simulations have been carried out for the dissociative recombination reaction of the deuterium-substituted hydronium cation, HD2O+ + e −, at the state-averaged multiconfigurational self-consistent field level. In the
Publikováno v:
Chemical Physics Letters. 427:1-4
Potential energy curves for the lowest 3 Σ − , 3 Π, 1 Δ, and 5 Σ − states of NaN have been calculated by the multireference singles and doubles configuration interaction method, including Davidson’s correction for quadruple excitations (MR-
Publikováno v:
Chemical Physics Letters. 418:511-518
The dissociative recombination of H3O+ has been studied by the ab initio direct trajectory simulations at the state-averaged complete active space self-consistent field level to investigate tendency in the branching ratios of the dissociative product
Publikováno v:
The Astrophysical Journal. 636:927-931
In order to elucidate the unusually high [HNC]/[HCN] abundance ratio observed in interstellar space, we have carried out wave packet simulations for the dissociative recombination reaction HCNH+ + e- → HNC/HCN + H on the two-dimensional potential e
Autor:
Tetsuya Taketsugu, Keisaku Ishii
Publikováno v:
The Astrophysical Journal. 634:L201-L204
Spectroscopic constants for the lowest 2Π, 4Σ-, 2Σ-, and 4Π states of the CaN radical have been calculated by the multireference singles and doubles configuration interaction method, including Davidson's correction for quadruple excitations [MR-S
Publikováno v:
The Astrophysical Journal. 608:323-329
The dissociative recombination reaction of HCNH+ + e- via indirect radiative mechanism on relevant excited state potential energy surfaces has been studied to investigate the branching ratio of the products, HNC/HCN, by using an ab initio direct traj
Publikováno v:
Chemical Physics Letters. 380:213-222
The spin-rovibronic spectrum of the A 2 Π ← X 2 Σ + electronic transition of MgNC has been determined variationally by RVIB3 [Mol. Phys. 98 (2000) 1697], based on the three-dimensional near-equilibrium potential energy surfaces of the 1 2 A ′ ,
Publikováno v:
Chemical Physics Letters. 374:506-512
The potential energy surfaces of CaNC ( X 2 Σ + ) and CaCN ( X 2 Σ + ) have been investigated by the highly correlated ab initio molecular orbital methods. The bending potential for CaNC is shallow, and shows quite anharmonic and anomalous characte