Now showing items 21-30 of 1583
1hJFH coupling in 2-fluorophenol revisited: Is intramolecular hydrogen bond responsible for this long-range coupling?
Principal component analysis of long-range 'W' coupling constants of some cyclic compounds
(Elsevier Science BvAmsterdamHolanda, 2001)
Heavy-quark symmetries in the light of nonperturbative QCD approaches
We critically review the validity of heavy-quark spin and flavor symmetries in heavy-light decay constants, form factors and effective couplings obtained within a nonperturbative framework, the ingredients of which are all ...
Analysis of the interactions in FCCF:(H2O) and FCCF:(H2O)2 complexes through the study of their indirect spin–spin coupling constants
(Taylor & Francis Ltd, 2017-12)
A theoretical study of FCCF:(H2O)n complexes, with n = 1 and 2, has been carried out by means of ab initio computational methods. Three kinds of interactions are observed in the complexes: H···π and H···F hydrogen bonds ...
Effects of hyperconjugative interactions on (1)J(CH) coupling constant for hexamethylenetetramine and adamantane: Theoretical and experimental study
(Soc Brasileira QuimicaSao PauloBrasil, 2007)
THE STRONG-COUPLING CONSTANT - ITS THEORETICAL DERIVATION FROM A GEOMETRIC APPROACH TO HADRON STRUCTURE
(Plenum Publ CorpNew York, 1994)
Computation of (3)J(HH) coupling constants with a combination of density functional theory and semiempirical calculations. Application to complex molecules
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
This work evaluates the efficiency of economic levels of theory for the prediction of (3)J(HH) spin-spin coupling constants, to be used when robust electronic structure methods are prohibitive. To that purpose, DFT methods ...
Density-dependent coupling constants and charge symmetry breaking
(World Scientific Publ Co Pte Ltd, 2001-01-01)
The effect of the medium in the coupling constants implicate in a charge symmetry breaking on nuclear interactions. The amount of energy due to this modification can explain the Nolen-Schiffer anomaly.
The electronic origin of unusually large (n)J(FN) coupling constants in some fluoroximes