Zobrazeno 1 - 10
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pro vyhledávání: '"João Paulo Gobbo"'
Autor:
João Paulo Gobbo, Antonio Carlos Borin
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
The photophysics of 8-azaadenine (8-AA) has been studied with the CASPT2//CASSCF protocol and ANO-L double-ζ basis sets. Stationary equilibrium structures, surface crossings, minimum energy paths, and linear interpolations have been used to study po
Autor:
Antonio Carlos Borin, Juan José Serrano-Pérez, Daniel Roca-Sanjuán, Pedro B. Coto, Vicenta Sauri, Luis Serrano-Andrés, João Paulo Gobbo, Manuela Merchán, Roland Lindh, Marcus Lundberg
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Proton/hydrogen-transfer processes have been broadly studied in the past 50 years to explain the photostability and the spontaneous tautomerism in the DNA base pairs. In the present study, the CASSCF/CASPT2 methodology is used to map the two-dimensio
Autor:
João Paulo Gobbo, Luis Serrano-Andrés, Daniel Roca-Sanjuán, Vicenta Sauri, Antonio Carlos Borin, Manuela Merchán
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
In this contribution, the multiconfigurational second-order perturbation theory method based on a complete active space reference wave function (CASSCF/CASPT2) is applied to study all possible single and double proton/hydrogen transfers between the n
Autor:
João Paulo Gobbo, Antonio Carlos Borin
Publikováno v:
International Journal of Quantum Chemistry. 111:1306-1315
The electronic structure and chemical bonding of the ground and low-lying Λ − S and Ω states of Ta2 were investigated at the multiconfiguration second-order perturbation theory (CASSCF//CASPT2) level. The ground state of Ta2 is computed to be a X
Autor:
João Paulo Gobbo, Antonio Carlos Borin
Publikováno v:
International Journal of Quantum Chemistry. 111:3362-3370
Multiconfigurational second-order perturbation theory (CASSCF//CASPT2) and quadruple-ζ ANO-RCC basis sets were employed to investigate the ground and low-lying electronic states of MoB and MoB+. Spectroscopic constants, potential energy curves, wave
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
The electronic structure of the lowest-lying electronic states of W-2 were investigated at the CASPT2 level. The ground state is a X-1 Sigma(+)(g) state, followed by the a(3)Delta(u), b(3)Sigma(+)(u) and A(1)Delta(u) electronic states. Seven low-lyin
Publikováno v:
Molecular Physics. 107:1035-1040
Multiconfiguration second-order perturbation theory, including relativistic effects and spin–orbit coupling, has been employed to investigate the nature of the chemical bonding in the ground state of Tc2 and Re2. The Tc2 ground state is found to be
Autor:
João Paulo Gobbo, Antonio Carlos Borin
Publikováno v:
The Journal of Physical Chemistry A. 112:4394-4398
The low-lying X 1 Σ + , a 3 Δ, A 1 Δ, b 3 Σ + , B 1 Π, c 3 Π, C 1 Φ, D 1 Σ + , E 1 Π, d 3 Φ, and e 3 Π electronic states of RhB have been investigated at the ab initio level, using the multistate multiconfigurational second-order perturbat
Publikováno v:
Chemical Physics. 343:210-216
Multiconfigurational SCF and second-order perturbation theory have been employed to study seven low-lying singlet and triplet electronic states of the Mo-2 molecule. The bond order of the ground state has been analyzed based on the effective bond ord
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
The photophysics and deactivation pathways of the noncanonical 5-azacytosine nucleobase were studied using the CASPT2//CASSCF protocol. One of the most significant differences with respect to the parent molecule cytosine is the presence of a dark (1)