Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Vibrational spectroscopy of N-methylacetamide revisited
Autore:
Herrebout, WA; Clou, K; Desseyn, HO;
Indirizzi:
Univ Antwerp, Dept Chem, RUCA, B-2020 Antwerp, Belgium Univ Antwerp Antwerp Belgium B-2020 Chem, RUCA, B-2020 Antwerp, Belgium
Titolo Testata:
JOURNAL OF PHYSICAL CHEMISTRY A
fascicolo: 20, volume: 105, anno: 2001,
pagine: 4865 - 4881
SICI:
1089-5639(20010524)105:20<4865:VSONR>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
INELASTIC NEUTRON-SCATTERING; RESONANCE RAMAN; TEMPERATURE-DEPENDENCE; HYDROGEN-BONDS; EXCITED-STATE; CRYSTALLINE ACETANILIDE; MOLECULAR-CRYSTALS; TRANS-PEPTIDES; LIQUID-STATE; IR-SPECTRA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
93
Recensione:
Indirizzi per estratti:
Indirizzo: Desseyn, HO Univ Antwerp, Dept Chem, RUCA, Groenenborgerlaan 171, B-2020 Antwerp, Belgium Univ Antwerp Groenenborgerlaan 171 Antwerp Belgium B-2020 ium
Citazione:
W.A. Herrebout et al., "Vibrational spectroscopy of N-methylacetamide revisited", J PHYS CH A, 105(20), 2001, pp. 4865-4881

Abstract

Although a lot of work has been performed on the vibrational analysis of N-methylacetamide (NMA), some uncertainties and even contradictions remain, mainly due to the fact that the structure of NMA at room temperature is notstable due to traces of water or due to the fact that the authors only studied the infrared or the Raman spectra. On the basis of the infrared and Raman spectra in the -196 degreesC to +100 degreesC temperature range, we have shown that the effects of temperature on the structure and the changes inthe strength of the hydrogen bonding within a structure elucidate a lot ofthe complexity of the solid state vibrational spectra of NMA. Force field calculations on the monomer and multimers (n = 6) and solution spectra of NMA and the N-deuterated compound are used to provide a better understandingof the influence of hydrogen bonding on the typical amide fundamentals. Nine typical so-called "amide bands" have been further characterized.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 22:08:56