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Titolo:
Crystal structure of trimethylammonium tetrafluoroborate in three solid phases
Autore:
Ishida, H; Kashino, S; Ikeda, R;
Indirizzi:
Okayama Univ, Fac Sci, Dept Chem, Okayama 7008530, Japan Okayama Univ Okayama Japan 7008530 ci, Dept Chem, Okayama 7008530, Japan Univ Tsukuba, Dept Chem, Tsukuba, Ibaraki 3058571, Japan Univ Tsukuba Tsukuba Ibaraki Japan 3058571 sukuba, Ibaraki 3058571, Japan
Titolo Testata:
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
fascicolo: 9-10, volume: 55, anno: 2000,
pagine: 765 - 768
SICI:
0932-0784(200009/10)55:9-10<765:CSOTTI>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
IONIC PLASTIC PHASE; SELF-DIFFUSION; TRANSITIONS; MOTIONS; NMR;
Keywords:
crystal structure; X-ray diffraction; ionic plastic phase; disorder;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Ishida, H Okayama Univ, Fac Sci, Dept Chem, 2-5-1 Shikata Cho, Okayama 7008530, Japan Okayama Univ 2-5-1 Shikata Cho Okayama Japan 7008530 530, Japan
Citazione:
H. Ishida et al., "Crystal structure of trimethylammonium tetrafluoroborate in three solid phases", Z NATURFO A, 55(9-10), 2000, pp. 765-768

Abstract

The crystal structure of (CH3)(3)NHBF4 was studied in three solid phases by X-ray diffraction techniques. The structures of the ionic plastic phase (Phase I) stable above 453 K and Phase II between 384 and 453 K are CsCl-type cubic (a = 5.772(4) Angstrom) and tetragonal (a = 9.815(5) and c = 6.895(5) Angstrom), respectively. The room temperature phase (Phase III) forms a monoclinic lattice (space group P2(1)/m, a = 5.7017(8), b = 8.5724(9), c = 7.444(1) Angstrom, and beta = 102.76(1)degrees). BF4- ions in this phase were shown to be disordered in four orientations.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 10:40:40