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Refinement of the angular dependence of the peptide vicinal NHCαH coupling constant

✍ Scribed by V.F. Bystrov; V.T. Ivanov; S.L. Portnova; T.A. Balashova; Yu.A. Ovchinnikov

Publisher
Elsevier Science
Year
1973
Tongue
French
Weight
423 KB
Volume
29
Category
Article
ISSN
0040-4020

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📜 SIMILAR VOLUMES

Conformational dependence of the vicinal
Conformational dependence of the vicinal proton coupling constant for the CαCβ bond in peptides
✍ M. T. Cung; M. Marraud 📂 Article 📅 1982 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 680 KB

## Abstract We use the nmr data concerning the C^α^HC^β^H fragment in eight peptides with rigid side chains to parametrize a Karplus correlation between the vicinal proton __J__~αβ~ coupling constant and the dihedral angle θ. When considering molecules containing the fragment C^α^H^α^C^β^H^β^H^β′

Conformational dependence of vicinal 13C
Conformational dependence of vicinal 13C′NCαH coupling constants in peptides: A dirac vector model investigation
✍ P. Mohanakrishnan; K. R. K. Easwaran 📂 Article 📅 1979 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 308 KB 👁 1 views

## Abstract Theoretical calculations of the heteronuclear vicinal coupling constant ^3^__J__(^13^C′NC^α^H) in peptides have been carried out using the Dirac vector model. The results showed an angular dependence for this coupling constant, which can be expressed in the form ^3^__J__(^13^C′NC^α^H) =

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Pruton magnetic resonaiice data and conformational calcolatioiw of a series of model compounds containing a NH-C"H group substituted as in peptides have been used to generate a proton-proton coupling constant-dihedral angle relation for the peptide unit. For those substances used in which the dihedr

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✍ L. Evelyn; L. D. Hall; P. R. Steiner; D. H. Stokes 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 442 KB

## Abstract A series of organic phosphonate and hydroxy‐phosphonate derivatives have been synthesised and their NMR spectra fully analysed. The __vicinal__ ^31^P^1^H coupling constants of these derivatives give evidence of a regular angular dependence.