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Titolo:
DYNAMICS OF BROMOHEXADECANE AND BROMODECANE CHAINS INCLUDED IN AN ORGANIC MATRIX - AN INCOHERENT QUASI-ELASTIC NEUTRON-SCATTERING STUDY
Autore:
BEE M; COMBET J; DJURADO D; FERRAND M; DIANOUX AJ;
Indirizzi:
UNIV GRENOBLE 1,SPECTROMETRIE PHYS LAB,UMR CNRS 5588,BOITE POSTALE 87,DOMAINE UNIV F-38402 ST MARTIN DHER FRANCE INST MAX VON LAUE PAUL LANGEVIN F-38420 GRENOBLE 09 FRANCE
Titolo Testata:
Molecular physics
fascicolo: 4, volume: 91, anno: 1997,
pagine: 681 - 688
SICI:
0026-8976(1997)91:4<681:DOBABC>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHANNEL INCLUSION-COMPOUNDS; PHASE-TRANSITIONS; ALKYL CHAINS; TANO;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
14
Recensione:
Indirizzi per estratti:
Citazione:
M. Bee et al., "DYNAMICS OF BROMOHEXADECANE AND BROMODECANE CHAINS INCLUDED IN AN ORGANIC MATRIX - AN INCOHERENT QUASI-ELASTIC NEUTRON-SCATTERING STUDY", Molecular physics, 91(4), 1997, pp. 681-688

Abstract

The nitroxide C9H16NO2 (tano) forms channel inclusion compounds with a large range of linear chains or slightly branched molecules. All of them present disorder phenomena of the guest chains in the channels ofthe structure, but also of the host matrix molecules from one chiral form to the other. The evolution of this disorder as a function of thetemperature is accompanied by one or two phase transitions above 100 K. The incoherent quasielastic neutron scattering (IQNS) technique wasused to study the motion of the tano molecules for the tano/1-bromohexadecane and the tano/1-bromodecane systems in their low, intermediateand high temperature phases. The experiments were carried out on a polycrystalline sample at the Institut Laue-Langevin in Grenoble using the time-focusing time-of-flight spectrometer IN6 with a temperature ranging from 103 K to 300 K. The motion of the guest chains also was shown. The results are examined in terms of the general model proposed inan earlier IQNS study of other tano/alkane compounds with shorter included chains and the original features associated with the chain length are discussed.

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Documento generato il 05/07/20 alle ore 09:23:15