Nmr spectroscopic study and dft calculations of vibrational analyses, giao NMR shieldings and 'JCH, 'Jcc spin-spin coupling constants of 1,7-diaminoheptane

Alver Ö., PARLAK C., ŞENYEL M.

Bulletin of the Chemical Society of Ethiopia, vol.23, no.1, pp.85-96, 2009 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 23 Issue: 1
  • Publication Date: 2009
  • Journal Name: Bulletin of the Chemical Society of Ethiopia
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.85-96
  • Keywords: 1,7-Diaminoheptane, DFT, GIAO, NMR, Vibrational assignments
  • Anadolu University Affiliated: Yes

Abstract

Vibrational frequencies and approximate mode descriptions of 1,7-diaminoheptane (dahp) have been determined via Becke-3-Lee-Yang-Parr (B3LYP) density functional method with 6-31G(d) basis set. 'H, proton coupled and uncoupled 13C, I5N, DEPT, COSY, HETCOR, INADEQUATE NMR spectra and the magnitude of one bond 1Jch, 1-Ice coupling constants of dahp (C7H 18N2) have been reported for the first time. 1H, 13C, 15N NMR chemical shifts and J ch. 1Jcc coupling constants of dahp have been calculated by means of B3LYP density functional method with 6-311++G(d,p) basis set. Comparison between the experimental and the theoretical results indicates that density functional B3LYP method is able to provide satisfactory results for predicting vibrational frequencies and NMR properties. © 2009 Chemical Society of Ethiopia.