Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

Pregled bibliografske jedinice broj: 22427

Structural dependence of isotope effects in H-1 and C-13 NMR spectra of the trans-N-benzylideneaniline imino group


Novak, Predrag; Meić, Zlatko; Vikić-Topić, Dražen; Smrečki, Vilko; Plavec, Janez
Structural dependence of isotope effects in H-1 and C-13 NMR spectra of the trans-N-benzylideneaniline imino group // Spectrochimica Acta Part A - Molecular Spectroscopy, 54 (1998), 2; 327-333 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 22427 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Structural dependence of isotope effects in H-1 and C-13 NMR spectra of the trans-N-benzylideneaniline imino group

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

Izvornik
Spectrochimica Acta Part A - Molecular Spectroscopy (0584-8539) 54 (1998), 2; 327-333

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
NMR; Isotope effects; Conformation; Trans-N-benzylideneaniline

Sažetak
Deuterium- and 15N-induced isotope effects on 1H and 13C chemical shifts of the imino moiety of 16 trans-N-benzylideneaniline (tBA) isotopomers were determined and analysed. These effects appear to be a sensitive probe of molecular conformation and its changes. All determined deuterium isotope effects on the imino-proton are small and negative and are spread in the range from − 0.88 ppb in 4-2H-tBA to − 4.97 ppb in 2H10-tBA. The effects on the imino-carbon are either positive or negative and have much larger values. Negative sign of isotope effects is primarily governed by lone-pairs, while magnitude and non-additivity depend on the site of isotopic substitution, molecular conformation and distribution of rotamer populations. All 15N isotope effects on both 1H and 13C chemical shifts are positive. A comparison of isotope effects in tBA with those in related isoelectronic compounds is made.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekti:
00980802

Ustanove:
Institut "Ruđer Bošković", Zagreb


Citiraj ovu publikaciju

Novak, Predrag; Meić, Zlatko; Vikić-Topić, Dražen; Smrečki, Vilko; Plavec, Janez
Structural dependence of isotope effects in H-1 and C-13 NMR spectra of the trans-N-benzylideneaniline imino group // Spectrochimica Acta Part A - Molecular Spectroscopy, 54 (1998), 2; 327-333 (međunarodna recenzija, članak, znanstveni)
Novak, P., Meić, Z., Vikić-Topić, D., Smrečki, V. & Plavec, J. (1998) Structural dependence of isotope effects in H-1 and C-13 NMR spectra of the trans-N-benzylideneaniline imino group. Spectrochimica Acta Part A - Molecular Spectroscopy, 54 (2), 327-333.
@article{article, year = {1998}, pages = {327-333}, keywords = {NMR, Isotope effects, Conformation, Trans-N-benzylideneaniline}, journal = {Spectrochimica Acta Part A - Molecular Spectroscopy}, volume = {54}, number = {2}, issn = {0584-8539}, title = {Structural dependence of isotope effects in H-1 and C-13 NMR spectra of the trans-N-benzylideneaniline imino group}, keyword = {NMR, Isotope effects, Conformation, Trans-N-benzylideneaniline} }
@article{article, year = {1998}, pages = {327-333}, keywords = {NMR, Isotope effects, Conformation, Trans-N-benzylideneaniline}, journal = {Spectrochimica Acta Part A - Molecular Spectroscopy}, volume = {54}, number = {2}, issn = {0584-8539}, title = {Structural dependence of isotope effects in H-1 and C-13 NMR spectra of the trans-N-benzylideneaniline imino group}, keyword = {NMR, Isotope effects, Conformation, Trans-N-benzylideneaniline} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus





Contrast
Increase Font
Decrease Font
Dyslexic Font