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Titolo:
STRUCTURE OF DEUTERATED AMMONIA-IV
Autore:
LOVEDAY JS; NELMES RJ; MARSHALL WG; BESSON JM; KLOTZ S; HAMEL G;
Indirizzi:
UNIV EDINBURGH,DEPT PHYS & ASTRON,MAYFIELD RD EDINBURGH EH9 3JZ MIDLOTHIAN SCOTLAND UNIV PARIS 06,CNRS,URA 782 PARIS FRANCE UNIV PARIS 06,DEPT HAUTES PRESSIONS PARIS FRANCE
Titolo Testata:
Physical review letters
fascicolo: 1, volume: 76, anno: 1996,
pagine: 74 - 77
SICI:
0031-9007(1996)76:1<74:SODA>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
DIFFRACTION; GPA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
J.S. Loveday et al., "STRUCTURE OF DEUTERATED AMMONIA-IV", Physical review letters, 76(1), 1996, pp. 74-77

Abstract

The structure of the high-pressure phase IV of ammonia has been solved from neutron powder diffraction data from ND3, and preliminary studies have been made of the structural pressure dependence to 9 GPa. The structure is orthorhombic, not hexagonal close packed (hcp) as previously thought. The nitrogen atoms have a pseudo-hcp arrangement, but thedeuterium atoms do not and are ordered at all pressures studied. The internal molecular geometry is not significantly distorted from that found in phase I at ambient pressure, but the hydrogen bond geometry ismore distorted and is unexpectedly complex.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 19:31:02