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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

Suspension NMR Spectroscopy of Phosphines and Carbonylnickel Complexes Immobilized on Silica

  • K. D. Behringer and J. Bliimel
From the journal Zeitschrift für Naturforschung B
https://doi.org/10.1515/znb-1995-1120
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The 31P suspension NMR spectra o f silica-immobilized bifunctional phosphines and their di- and tricarbonylnickel complexes were recorded using conventional high resolution NMR equipment. The practical advantages of suspension NMR spectroscopy, as compared to 31P CP/MAS NMR spectroscopy, are discussed. General tendencies are demonstrated: The suspension NMR signals become broader with increasing solvent viscosity and decreasing solvent polarity. Phenyl groups as spacers lead to broader resonances than alkyl chains. The linewidths increase in the case of chelation.

Keywords : 31P Suspension NMR Spectra; Immobilized Bifunctional Phosphines; Immobilized Carbonylnickel Phosphine Complexes; Modified Silica; 31P CP/MAS NMR Spectra
Received: 1995-6-6
Published Online: 2014-6-2
Published in Print: 1995-11-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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From the journal
Zeitschrift für Naturforschung B
Zeitschrift für Naturforschung B
Volume 50 Issue 11

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