15N NMR studies on cyclopalladated Schiff's base complexes
2
Spectrospin AG, Industriestrasse 26, CH‐8117 Fällanden, Switzerland
|
Publication type: Journal Article
Publication date: 1986-03-01
scimago Q3
wos Q3
SJR: 0.360
CiteScore: 4.1
Impact factor: 1.4
ISSN: 07491581, 1097458X
General Chemistry
General Materials Science
Abstract
15N NMR spectra for a series of cyclopalladated m- and p-substituted benzylidene Schiff's base complexes have been measured. The dominant factor affecting the nitrogen chemical shift is the ligand in the trans position to the coordinated nitrogen, and not the aryl ring substituent. Tertiary phosphine ligands trans to the 15NCH moiety weaken the Pd-N bond more than oxygen, chlorine or nitrogen donors, thereby reducing the coordination chemical shift. The values for δ(15N) in the free and complexed ligands correlate linearly with one another.
1H and 15N spectra of the geometric isomers [Pd(2a)Cl(pyridine)] and [Pd(2a)Cl(NHEt2)], where 2a = the 2′-cyclopalladated Schiff's base (5′-OCH3C6H3)CHN(4-CH3C6H4), were assigned based on the local anisotropic effects of the Cl and nitrogen ligand. For the pyridine complex the assignment is supported by difference NOE, NOESY and COSY measurements.
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Pregosin P., Rüedi R., Anklin C. 15N NMR studies on cyclopalladated Schiff's base complexes // Magnetic Resonance in Chemistry. 1986. Vol. 24. No. 3. pp. 255-258.
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Pregosin P., Rüedi R., Anklin C. 15N NMR studies on cyclopalladated Schiff's base complexes // Magnetic Resonance in Chemistry. 1986. Vol. 24. No. 3. pp. 255-258.
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RIS
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TY - JOUR
DO - 10.1002/mrc.1260240314
UR - https://doi.org/10.1002/mrc.1260240314
TI - 15N NMR studies on cyclopalladated Schiff's base complexes
T2 - Magnetic Resonance in Chemistry
AU - Pregosin, P.S.
AU - Rüedi, R
AU - Anklin, Clemens
PY - 1986
DA - 1986/03/01
PB - Wiley
SP - 255-258
IS - 3
VL - 24
SN - 0749-1581
SN - 1097-458X
ER -
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BibTex (up to 50 authors)
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@article{1986_Pregosin,
author = {P.S. Pregosin and R Rüedi and Clemens Anklin},
title = {15N NMR studies on cyclopalladated Schiff's base complexes},
journal = {Magnetic Resonance in Chemistry},
year = {1986},
volume = {24},
publisher = {Wiley},
month = {mar},
url = {https://doi.org/10.1002/mrc.1260240314},
number = {3},
pages = {255--258},
doi = {10.1002/mrc.1260240314}
}
Cite this
MLA
Copy
Pregosin, P.S., et al. “15N NMR studies on cyclopalladated Schiff's base complexes.” Magnetic Resonance in Chemistry, vol. 24, no. 3, Mar. 1986, pp. 255-258. https://doi.org/10.1002/mrc.1260240314.