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Intrinsic Deuterium Induced Isotope Effects in C-13 NMR Spectra of Protonated Benzylideneaniline and Azobenzene Isotopomers (CROSBI ID 465026)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Smrečki, Vilko ; Vikić-Topić, Dražen ; Novak, Predrag ; Meić, Zlatko Intrinsic Deuterium Induced Isotope Effects in C-13 NMR Spectra of Protonated Benzylideneaniline and Azobenzene Isotopomers // Book of Abstracts (http://ocwww.chemie.uni-linz.ac.at/posters.html) / Mueller, Nobert (ur.). Linz: Johannes Kepler University Linz, 1997

Podaci o odgovornosti

Smrečki, Vilko ; Vikić-Topić, Dražen ; Novak, Predrag ; Meić, Zlatko

engleski

Intrinsic Deuterium Induced Isotope Effects in C-13 NMR Spectra of Protonated Benzylideneaniline and Azobenzene Isotopomers

Differently deuterium labelled trans-N-benzylideneaniline (1) and trans-azobenzene (2) isotopomers were prepared, protonated and studied by C-13 NMR spectroscopy. A number of deuterium isotope effects (DIE) on C-13 chemical shifts have been observed for protonated and unprotonated species. The protonation was performed by CF_3COOH and spectra measured in C_6D_6 solution. The changes of magnitude, sign and extent of isotope effects in unprotonated and protonated trans-N-benzylideneaniline and trans-azobenzene isotopomers are quite different, what together with only four observed bands in C-13 NMR spectra of protonated trans-azobenzene indicate the fast proton exchange in that molecule (not possible in trans-N-benzylideneaniline). The importance of steric effects and lone-pair interactions in transmission of isotope effects is also discussed.

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Podaci o prilogu

1997.

objavljeno

Podaci o matičnoj publikaciji

Book of Abstracts (http://ocwww.chemie.uni-linz.ac.at/posters.html)

Mueller, Nobert

Linz: Johannes Kepler University Linz

Podaci o skupu

International Symposion on Advances in NMR

poster

18.02.1997-19.02.1997

Linz, Austrija

Povezanost rada

Kemija