A PC program for calculation of dihedral angles from 1H NMR data

Carlos M. Cerda-García-Rojas, L. Gerardo Zepeda, Pedro Joseph-Nathan

Research output: Contribution to journalArticlepeer-review

88 Scopus citations

Abstract

The program ALTONA, written in BASIC, calculates plots of H-C-C-H dihedral angles from proton-proton NMR vicinal coupling constants using an empirically generalized Karplus-type equation, which takes into account the electronegativity and the orientation of the substituents attached to the considered H-C-C-H fragment. Generation of a plot for the fragment results after introduction of the atomic symbols of the substituents (C, H, O, N, S, P, F, Cl, Br, and/or I) and their orientation (+ or -). ALTONA is compiled in Turbo BASIC for PC compatible computers and is included in the present paper as ALTONA.EXE on disk.

Original languageEnglish
Pages (from-to)113-118
Number of pages6
JournalTetrahedron Computer Methodology
Volume3
Issue number2
DOIs
StatePublished - 1990
Externally publishedYes

Keywords

  • Conformational analysis
  • Dihedral angles
  • Karplus-type equation
  • NMR proton couplings
  • PC program

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