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Titolo:
ORDER-DISORDER TRANSITIONS IN ADAMANTANE DERIVATIVES - VIBRATIONAL SPECTROSCOPIC AND C-13 NMR-STUDIES OF 1-CHLOROADAMANTANE
Autore:
HUANG YN; PAROLI RM; GILSON DFR; BUTLER IS;
Indirizzi:
MCGILL UNIV,DEPT CHEM,801 SHERBROOKE ST MONTREAL H3A 2K6 QUEBEC CANADA MCGILL UNIV,DEPT CHEM,801 SHERBROOKE ST MONTREAL H3A 2K6 QUEBEC CANADA
Titolo Testata:
Canadian journal of chemistry
fascicolo: 11, volume: 71, anno: 1993,
pagine: 1890 - 1897
SICI:
0008-4042(1993)71:11<1890:OTIAD->2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPIN-LATTICE RELAXATION; PHASE-TRANSITION; MOLECULAR REORIENTATIONS; SPECTRA; DIPOLAR; MOTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
Y.N. Huang et al., "ORDER-DISORDER TRANSITIONS IN ADAMANTANE DERIVATIVES - VIBRATIONAL SPECTROSCOPIC AND C-13 NMR-STUDIES OF 1-CHLOROADAMANTANE", Canadian journal of chemistry, 71(11), 1993, pp. 1890-1897

Abstract

The order-disorder behaviour of 1-chloroadamantane (1-C10H15Cl) has been investigated by differential scanning calorimetry, and variable-temperature vibrational and C-13 NMR spectroscopy. The factor group splittings in the vibrational spectra are in accord with the known crystalstructures of the two phases. The C-13 spin-lattice relaxation times and dipolar dephasing measurements have been analysed to give the barriers to rotation in both phases and to determine the nature of the rotations in each phase. In the ordered phase, the motion is limited to rotation about the molecular axis. In the disordered phase, additional motions occur about axes through the tertiary carbon atoms.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 09:29:59