Rotational diffusion and segmental motions in solutions and melts of tetraoctylammonium perchlorate

Relaxation times for the methylene carbon atoms in the aliphatic chains of tetraoctylammonium perchlorate have been measured in different solvents and in the melt. The results have then been interpreted on the basis of a theoretical model which considers the overall rotational diffusion and the inte...

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Bibliographic Details
Published inChemical physics Vol. 123; no. 3; pp. 397 - 403
Main Authors Coletta, F., Ferrarini, A., Nordio, P.L.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 15.07.1988
Elsevier
Subjects
Atomic and molecular physics
Barrier heights (internal rotation, inversion, rotational isomerism, conformational dynamics)
Exact sciences and technology
Molecular properties and interactions with photons
Physics
Properties of molecules and molecular ions
Solvent effect
Liquid state
Chemical solution
Spin lattice relaxation
Conformational dynamics
Molecular dynamics
Experimental study
Relaxation time
Quaternary ammonium compound
Reorientation diffusion
Saturated aliphatic compound
Correlation function
Diffusion coefficient
NMR spectrum
Organic compounds
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Summary:Relaxation times for the methylene carbon atoms in the aliphatic chains of tetraoctylammonium perchlorate have been measured in different solvents and in the melt. The results have then been interpreted on the basis of a theoretical model which considers the overall rotational diffusion and the internal conformational transitions in flexible chains attached to massive cores.
ISSN:0301-0104
DOI:10.1016/0301-0104(88)87049-6