Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Greet Raspoet"'
Publikováno v:
Journal of Physical Organic Chemistry. 13:46-56
The protonation and hydration of carbon suboxide (O=C=C=C=O) were studied by ab initio molecular orbital methods. While the geometries of the stationary points were optimized using MP2/6-31G(d,p) calculations, relative energies were estimated using Q
Autor:
Greet Raspoet, Minh Tho Nguyen
Publikováno v:
Canadian Journal of Chemistry. 77:817-829
New insights into the detailed mechanism of the hydration of ketene yielding acetic acid (H2C=C=O + H2O →> CH3COOH) were obtained by theoretical methods in both gas phase and solution. While gas phase calculations were performed using ab initio mol
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :813-820
A theoretical study of the hydration of a model ketene imine (R2CCNH) and carbodiimide (RNCNR) has been undertaken. The detailed hydration mechanism of the simplest cumulenes by water and water clusters (HXCNH + n H2O→H2XCONH2 + (n – 1) H2O, n =
Publikováno v:
The Journal of Physical Chemistry A. 103:171-177
Attempts have been made to resolve a discrepancy in the recent literature concerning the thiol−thione tautomerism of monothioformic acid. Whereas Kato et al. (J. Am. Chem. Soc. 1996, 118, 1262) reported that the thione acid [RC(S)OH] exists predomi
Publikováno v:
The Journal of Organic Chemistry. 63:9669-9677
The amination reaction of ketenes has been studied both theoretically and experimentally as a model reaction for amide bond formation. Calculations are performed using both ab initio molecular orbital theory (MO) and density functional theory (DFT) m
Publikováno v:
The Journal of Organic Chemistry. 63:6878-6885
A kinetic and mechanistic investigation of the catalyzed alcoholysis of isocyanates was undertaken. Both experimental and theoretical results showed that the alcoholysis should be understood by a multimolecular intervention of the alcohols. The alcoh
Publikováno v:
The Journal of Physical Chemistry A. 101:7379-7388
The detailed reaction pathways for the hydration of carbon dioxide by water and water clusters containing two, three, and four water molecules (CO2 + nH2O → H2CO3 + (n − 1)H2O, n = 1−4) have been investigated in both gas phase and aqueous solut
Publikováno v:
Journal of the American Chemical Society. 119:2552-2562
Substituent and solvent effects on the reaction pathway of the Beckmann rearrangement were studied. Energy surfaces of the isolated gas phase systems were mapped out using ab initio MO calculations at the MPn and QCISD(T) levels with basis sets rangi
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :821-826
Ab initio calculations have been performed to probe the mechanism of the Beckmann rearrangement of formaldehyde oxime in concentrated sulfuric acid or in oleum solution (H2SO4 + S2O7 ). In the gas phase, the most favoured reaction path is: protonatio
Publikováno v:
The Journal of Physical Chemistry. 99:11883-11888