CHARACTERIZATION OF γ-AMINOPROPYL AND N-β(AMINOETHYL)γ-AMINOPROPYL GROUPS IMMOBILIZED ON SILICA GEL BY USING CMR SPECTROSCOPY
- 5 February 1979
- journal article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 8 (2) , 179-182
- https://doi.org/10.1246/cl.1979.179
Abstract
The organofunctional groups immobilized on silica gel, NH2CH2CH2CH2Si-(silica) and NH2CH2CH2NHCH2CH2CH2Si-(silica), have been characterized by CMR spectroscopy in the suspended state. The carbon adjacent to silicon showed substantial low-field shift and T1 reduction as a result of immobilization. The microenvironment of these amino and diamino groups resembles that in the homogeneous phase in appropriate solvents, owing to the permissible segmental motion of the three-carbon chain.This publication has 7 references indexed in Scilit:
- Carbon-13 chemical shifts of gaseous four-carbon hydrocarbons. Comparison of shifts in the liquid, gaseous, and adsorbed statesThe Journal of Physical Chemistry, 1978
- Hydrogen bonding and related association in linear aliphatic amino alcohols as probed by carbon-13 spin-lattice relaxation timesJournal of the American Chemical Society, 1976
- Qualitative analysis of chemisorbed molecular species via 13C NMRSurface Science, 1975
- 13C NMR investigation of adsorbed hydrocarbonsSurface Science, 1974
- Druckstabile lonenaustauscher auf der Basis von porösem Siliciumdioxid in der Säulen-Flüssig-ChromatographieChromatographia, 1974
- Carbon-13 nuclear magnetic resonance spectroscopy of molecules adsorbed on silicaThe Journal of Physical Chemistry, 1974
- Segmental motion in short aliphatic chainsJournal of the American Chemical Society, 1973