Deuterium Isotope Effects in 13C NMR Spectra of trans-N-Salicylideneaniline Isotopomers

Smrečki, Vilko and Novak, Predrag and Vikić-Topić, Dražen and Hrenar, Tomica and Meić, Zlatko (2002) Deuterium Isotope Effects in 13C NMR Spectra of trans-N-Salicylideneaniline Isotopomers. Croatica Chemica Acta, 75 (1). pp. 41-49. ISSN 0011-1643

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Abstract

A series of isotopically labelled trans-N-salicylideneaniline (SAN) isotopomers has been prepared (2'-2H-, 3'-2H-, 4'-2H- and 2',3',4',5',6'- 2H5-SAN) and their 13C NMR spectra recorded and analyzed. Deuterium isotope effects (DIEs) in 13C NMR spectra of SAN isotopo- mers have been compared with those observed in the corresponding isotopomers of related binuclear aromatic molecules. Most of DIEs in SAN resemble those previously reported for similar molecular systems, except for some effects over three bonds. It is suggested that the participation of SAN nitrogen lone pair in the in- tramolecular hydrogen bond is responsible for the observed difference in DIEs through three bonds at the aniline ring ortho carbon.

Item Type: Article
Keywords: NMR; 1H; 13C; deuterium isotope effects; salicylidene- aniline; hydrogen bond
Date: 2002
Subjects: NATURAL SCIENCES > Chemistry
Divisions: Faculty of Science > Department of Chemistry
Publisher: Hrvatsko kemijsko društvo
Related URLs:
Depositing User: mag. bibl. Ana Šafran
Date Deposited: 20 May 2014 09:22
Last Modified: 20 May 2014 09:22
URI: http://digre.pmf.unizg.hr/id/eprint/1504

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