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http://hdl.handle.net/2289/3161| Title: | A 13C-NMR study of non-planar distortions in amides |
| Authors: | Khetrapal, C.L. Kunwar, A.C. |
| Keywords: | nematic phase; direct-dipolar couplings; indirect spin-spin couplings; chemical shift; peptide unit; dihedral angles |
| Issue Date: | 1981 |
| Citation: | Journal of Biochemical and Biophysical Methods, 1981, Vol.4, p185-190 |
| Abstract: | The technique of 13C-NMR spectroscopy of oriented systems to problems of biological importance has been suggested and used to investigate non-planar distortions in substituted amides—models for peptides. The studies in conjunction with the proton magnetic resonance data on 15N-[13C]methyl[13C]formamide oriented in a nematic solvent provide all the direct dipolar couplings between the interacting nuclei in the system. When the 13C- and the 1H-NMR experiments are performed under non-identical conditions, 22 different direct dipolar couplings are obtained. It is demostrated that they can be used to determine unambiguously non-planar distortions around the nitrogen atom together with other geometrical data and the molecular order. |
| Description: | Restricted Access. |
| URI: | http://hdl.handle.net/2289/3161 |
| ISSN: | 0165-022X |
| Alternative Location: | http://dx.doi.org/doi:10.1016/0165-022X(81)90056-7 |
| Copyright: | 1981 Elsevier B.V |
| Appears in Collections: | Research Papers (SCM) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 1981 JB&BM V4 p185.pdf Restricted Access | Restricted Access | 272.19 kB | Adobe PDF | View/Open Request a copy |
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