Zobrazeno 1 - 10
of 208
pro vyhledávání: '"Tamás Veszprémi"'
Autor:
Tamás Veszprémi, Tibor Szilvási
Publikováno v:
Structural Chemistry. 26:1335-1342
We explored the possible reaction of three model carbenes and two model silylenes with white phosphorus leading to insertion, bis-adduct, and tris-adduct products. The energetics of the calculated mechanisms are in accordance with the experimental ob
Publikováno v:
Journal of Organometallic Chemistry. 783:22-27
Reaction of free dineopentyl-benzimidazoline-2-ylidene 1 (ligand: np 2 bimy) with (η 3 -cycloheptatriene)Mo(CO) 3 , molar ratio 3:1, provides the coordinatively unsaturated lateral -(np 2 bimy) 2 Mo(CO) 3 complex 2 . Crystal structure analysis of 2
Autor:
Tibor Szilvási, Tamás Veszprémi
Publikováno v:
ACS Catalysis. 3:1984-1991
The Suzuki–Miyaura reaction is one of the most interesting coupling schemes and is widely used in industrial applications. The catalytic cycle of Suzuki–Miyaura coupling has been investigated using N-heterocyclic carbene (NHC) ligands. Detailed a
Autor:
Tamás Veszprémi, Tibor Szilvási
Publikováno v:
Organometallics. 31:3207-3212
Steric groups are often regarded in reactions as chemically irrelevant, inert parts of the molecules, which have no influence on the structure of the forming reactive center of the product but rather on the reaction rate; therefore, they are usually
Publikováno v:
Organometallics. 30:5344-5351
The unique insertion reactions of the first, stable six-membered-ring silylene ({HC[CMeN(R)]2}Si, R = 2,6-diisopropylphenyl) with eight reactants were investigated by the B3LYP/cc-pVTZ method. The initial step (IS) of all the reactions is the formati
Publikováno v:
Chemical Physics Letters. 499:26-30
Substitution of C–H groups in 1,3,5-trimethylenebenzene (1,3,5-TMB) triradical by one, two or three N, P and As atoms is studied using CASSCF/CASPT2 computations with a ANO-RCC triple-ζ basis set. The computations showed that consistently with the
Publikováno v:
Comptes Rendus Chimie. 13:1173-1179
Spontaneous and rapid polymerization of phosphaethyne was previously observed, however the crystal structure and electronic properties of the polymer have not been studied in detail. In the present work, we investigated the stability and electronic s
Publikováno v:
Organometallics. 29:1107-1116
The geometric and electronic structures of phosphaethyne trimers were studied using density functional theory (B3LYP/cc-pVTZ) as well as CBS-QB3, CCSD(T), and complete active space self-consistent field (CASSCF) computations. The effect of the substi