Zobrazeno 1 - 10
of 64
pro vyhledávání: '"J.J. Quirante"'
Autor:
J.J. Quirante, Saturnino Calvo-Losada
Publikováno v:
Axiomathes. 32:1-41
A novel non-classical mereological concept (Molecule in Atoms-of) built up by blending the Metaphysics of Xavier Zubiri and the Quantum Theory of Atoms in Molecules (QTAIM) of R. F. W. Bader is proposed. It is argued that this philosophical concept i
Autor:
Antonio Romero-Carrasco, Francisco Sarabia, M. S. Pino‐Gonzalez, Saturnino Calvo-Losada, J.J. Quirante, N. Oña-Bernal
Publikováno v:
RSC Adv.. 7:50367-50371
The synthesis of novel tetrazolo azepanes from azido nitriles by 1,3 intramolecular dipolar cycloaddition starting from monosaccharide derivatives is described. A quantum chemical topological study on the intramolecular cyclization process has been c
Autor:
J.J. Quirante, Saturnino Calvo-Losada
Publikováno v:
Journal of Molecular Modeling. 23
The regioselectivity of the dinuclear-Cu(I)-catalyzed version of the Huisgen reaction, abbreviated in this paper to Cu2AAC, was analyzed using quantum topological methods in order to study how the electronic charge distribution evolved along differen
Autor:
J.J. Quirante, J. Martín-Ortiz
Publikováno v:
Theoretical Chemistry Accounts. 128:327-339
Thermal fragmentation of 2-methyloxetane (2MO), which yields two different sets of products by virtue of ring asymmetry, was studied theoretically by using DFT, MPn and CASPT2//CASSCF methods. At the MPn and DFT theoretical levels, only concerted tra
Autor:
Bohdan Snovydovych, J.J. Quirante, Francisco J. Ramírez, Juan Casado, Juan T. López Navarrete, Andreas Schmidt
Publikováno v:
Phys. Chem. Chem. Phys.. 11:341-348
Indazolium-3-carboxylate is a molecule that can be found as the nucleus of several pseudo-cross-conjugated mesomeric betaines, such as the alkaloid nigellicine. From a chemical point of view, one of the more interesting properties of this class of mo
Autor:
J.J. Quirante, Juan T. López Navarrete, María Moreno Oliva, Juan Casado, Tetsuo Otsubo, Rocío Ponce Ortiz, Mari Carmen Ruiz Delgado, Kazuo Takimiya
Publikováno v:
The Journal of Physical Chemistry A. 110:7422-7430
In this work, the interactions between heteroatoms (S, Se, and Te) and conjugated skeletons are analyzed. The study is carried out by using electronic absorption and fluorescence spectroscopies, electrochemistry, vibrational Raman spectroscopy, and t
Autor:
Juan T. López Navarrete, J.J. Quirante, Tetsuo Otsubo, Juan Casado, Kazuo Takimiya, Víctor Hernández
Publikováno v:
The Journal of Physical Chemistry B. 108:7611-7619
Two isomeric dithienyl naphthodithiophenes and their corresponding polymers have been thoroughly studied by using a combination of spectroscopic, electrochemical, and quantum chemistry techniques. The change between the syn and anti configuration of
Publikováno v:
The journal of physical chemistry. B. 119(4)
The distinct role of the Cu(I) in the Huisgen dipolar cycloaddition of azides to alkynes (denoted as CuAAC) is disclosed by following the evolution of the topology of the Laplacian of the electronic charge density, ∇(2)ρ(r), and its gradient vecto
Publikováno v:
Theoretical Chemistry Accounts: Theory, Computation, and Modeling (Theoretica Chimica Acta). 103:423-430
The influence of protecting the hydroxyl group of a β-oxy-α-diazo carbonyl compound on the competition between the Wolff rearrangement (WR) and the [1,2]-hydrogen shift (HS) was investigated theoretically. Stationary points on the potential-energy
Publikováno v:
The Journal of Physical Chemistry B. 103:7145-7150
A quantum chemical investigation of the solvent effects on the competition between the Wolff transposition and 1,2-H-shift in β-hydroxy-ketocarbenes in aqueous solution was carried out at the B3LYP/6-31G** level of theory. The inclusion of solvent e