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dc.contributor.authorCosta, A. M. Amorim da-
dc.contributor.authorMarques, M. P. M.-
dc.contributor.authorCarvalho, L. A. E. Batista de-
dc.identifier.citationVibrational Spectroscopy. 29:1-2 (2002) 61-67en_US
dc.description.abstractThe Fermi resonance interaction between the methylene symmetric C---H stretching mode and appropriate binary combinations involving the methylene bending mode in the Raman spectra of polyamines, namely in 1,6-hexanediamine derivatives, under different conditions of deuteration and ionisation of the head amino groups and varying temperature has been analysed. The tentative assignment of the observed bands in the C---H stretching region of the registered Raman spectra is reported and the ratio of the Raman intensities of the symmetric stretching to the antisymmetric fundamentals is considered in its possible relation to the order/disorder of the skeletal hydrocarbon chains, from the all-trans prevailing geometry in the solid state at lower temperatures to the increasing amount of gauche arrangements on heating and melting.en_US
dc.subjectRaman spectroscopyen_US
dc.titleThe carbon---hydrogen stretching region of the Raman spectra of 1,6-hexanediamine: N-deuteration, ionisation and temperature effectsen_US
item.fulltextCom Texto completo-
item.grantfulltextopen- of Sciences and Technology- of Sciences and Technology- of Sciences and Technology- of Coimbra- of Coimbra- of Coimbra- – Molecular Physical-Chemistry R&D Unit- – Molecular Physical-Chemistry R&D Unit-
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais
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