Nuclear magnetic resonance spectra of the ABX3 type: Field dependence and relative signs of spin-spin coupling constants
The ABX3 spin system is studied as a function of applied magnetic field. A method for the determination of the relative signs of J AX and JBX, together with the relative chemical shifts and coupling constants is described. The results are applied to the cis crotonic acid, the trans crotonic acid, it...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00219606_v33_n6_p1794_Kowalewski |
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todo:paper_00219606_v33_n6_p1794_Kowalewski2023-10-03T14:24:41Z Nuclear magnetic resonance spectra of the ABX3 type: Field dependence and relative signs of spin-spin coupling constants Kowalewski, V.J. DeKowalewski, D.G. The ABX3 spin system is studied as a function of applied magnetic field. A method for the determination of the relative signs of J AX and JBX, together with the relative chemical shifts and coupling constants is described. The results are applied to the cis crotonic acid, the trans crotonic acid, its methyl ester, and N-methylformamide. In the latter case it is shown that the relative chemical shift of the A and B protons can be estimated from the field behavior of the X3 group of lines. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00219606_v33_n6_p1794_Kowalewski |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
The ABX3 spin system is studied as a function of applied magnetic field. A method for the determination of the relative signs of J AX and JBX, together with the relative chemical shifts and coupling constants is described. The results are applied to the cis crotonic acid, the trans crotonic acid, its methyl ester, and N-methylformamide. In the latter case it is shown that the relative chemical shift of the A and B protons can be estimated from the field behavior of the X3 group of lines. |
| format |
JOUR |
| author |
Kowalewski, V.J. DeKowalewski, D.G. |
| spellingShingle |
Kowalewski, V.J. DeKowalewski, D.G. Nuclear magnetic resonance spectra of the ABX3 type: Field dependence and relative signs of spin-spin coupling constants |
| author_facet |
Kowalewski, V.J. DeKowalewski, D.G. |
| author_sort |
Kowalewski, V.J. |
| title |
Nuclear magnetic resonance spectra of the ABX3 type: Field dependence and relative signs of spin-spin coupling constants |
| title_short |
Nuclear magnetic resonance spectra of the ABX3 type: Field dependence and relative signs of spin-spin coupling constants |
| title_full |
Nuclear magnetic resonance spectra of the ABX3 type: Field dependence and relative signs of spin-spin coupling constants |
| title_fullStr |
Nuclear magnetic resonance spectra of the ABX3 type: Field dependence and relative signs of spin-spin coupling constants |
| title_full_unstemmed |
Nuclear magnetic resonance spectra of the ABX3 type: Field dependence and relative signs of spin-spin coupling constants |
| title_sort |
nuclear magnetic resonance spectra of the abx3 type: field dependence and relative signs of spin-spin coupling constants |
| url |
http://hdl.handle.net/20.500.12110/paper_00219606_v33_n6_p1794_Kowalewski |
| work_keys_str_mv |
AT kowalewskivj nuclearmagneticresonancespectraoftheabx3typefielddependenceandrelativesignsofspinspincouplingconstants AT dekowalewskidg nuclearmagneticresonancespectraoftheabx3typefielddependenceandrelativesignsofspinspincouplingconstants |
| _version_ |
1807315257899614208 |