In:
Journal of Heterocyclic Chemistry, Wiley, Vol. 27, No. 2 ( 1990-02), p. 455-458
Abstract:
One‐dimensional ( 1D ) variants of two‐dimensional ( 2D ) nmr techniques can frequently provide the required information in a much shorter period of time than the 2D experiment from which they were derived. Application of the 1D homonuclear Hartmann‐Hahn (1D‐HOHAHA) experiment to establish proton‐proton connectivity networks in highly overlapped four‐spin systems in the proton nmr spectra of polynuclear aromatics is described. Selective subspectra are contrasted to the data obtained in a COSY experiment on the same molecule, benzo[ f ][l] benzothieno [2,3 ‐ c ]quinoline. Results from the 1D‐HOHAHA technique are especially useful when component resonances from several spin systems are heavily overlapped. Relayed 1D‐HOHAHA provides the means of exploiting small, long range coupling pathways of polynuclear aromatics.
Type of Medium:
Online Resource
ISSN:
0022-152X
,
1943-5193
DOI:
10.1002/jhet.5570270263
Language:
English
Publisher:
Wiley
Publication Date:
1990
detail.hit.zdb_id:
2042274-X
Permalink