Materias dentro de su búsqueda.
Materias dentro de su búsqueda.
Coupling constants
6
Hyperconjugative interactions
4
Spin-spin coupling constants
4
Fermi contact
3
NMR
3
Substituent effect
3
Chemical bonds
2
Couplings
2
Electrons
2
Fluorine
2
Halogen atoms
2
Magnetic Resonance Spectroscopy
2
Magnetic shielding
2
Model system
2
Nuclear magnetic resonance
2
Nuclear magnetic resonance spectroscopy
2
Paramagnetic spins
2
Paramagnetism
2
Qualitative approach
2
Qualitative model
2
Quantum Theory
2
Second orders
2
Sulfur compounds
2
Transmission mechanisms
2
Virtual excitations
2
article
2
chemical structure
2
chemistry
2
electron
2
hydrogen bond
2
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2“..., an analysis of the main transmission mechanisms of the SO term is performed in terms of localized molecular...”
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3“... calculations carried out in the 6-31G** basis set, the observed effect is mainly due to the change...”
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4“... of the Fermi contact (fc) term, the main features of which are: (i) It decays exponentially with the F-H...”
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5por Krivdin, L.B., Zinchenko, S.V., Shcherbakov, V.V., Kalabin, G.A., Contreras, R.H., Tufro, M.F., Ruiz de Azua, M.C., Giribet, C.G.“... negative one for 1Jcc(E), which are found to be the main cause of this difference. © 1989....”
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6“... that observed behavior is mainly due to the hyperconjugative interactions and electrostatic effects. © 2008...”
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7“.... First, couplings contributed mainly by the FC interaction are considered. Insight...”
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8“...-H bond cis to the lone pairs, which is found to be the main cause of the difference in the 1JC-H...”
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9“... owing mainly to two different factors. The large increase in experimental techniques with modern high...”
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10“..., Si, Sn, Pb; Y = F, Cl). That contribution is found to be the main one, except for X = Pb...”
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11“... affect its electronic structure as gauged through high-resolution 19F NMR spectroscopy. This is the main...”
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12“... vicinal interproton couplings in norbornane and norbornene. The main pathway defining such couplings...”
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13“... is transmitted mainly through the hydrogen bond. Copyright © 1993 John Wiley & Sons, Ltd....”
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14por Esteban, A.L., Galache, M.P., Mora, F., Díez, E., Casanueva, J., San Fabián, J., Barone, V., Peralta, J.E., Contreras, R.H.“... i and ii. Application of this method to the ethane and fluoroethane molecules shows that the main...”
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15por Contreras, R.H., Llórente, T., Pagola, G.I., Bustamante, M.G., Pasqualini, E.E., Melo, J.I., Tormena, C.F.“... if it can be known how they affect the main virtual excitations entering into that second-order property. A...”
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16“... angle are compared in both series for equatorial and axial X orientations. The main trend is described...”
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17“... by the orbital interaction, which is mainly transmitted through the vinyl π‐electron system. Copyright © 1987...”
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18“... contact (FC) contribution to long-range nJ(13C,13C) (n>4) coupling constants is mainly transmitted...”
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19“.... It is mainly based on the overlap matrix (Sij) between fluorine and nitrogen lone pairs obtained from NBO...”
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20“...) contribution to long-range nJ(13C,13C) (n>4) coupling constants is mainly transmitted through the mobile π...”
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