Crystal structure of trimethylammonium tetrafluoroborate in three solid phases

Hiroyuki Ishida; Setsuo Kashino; Ryuichi Ikeda

doi:10.1515/zna-2000-9-1004

Crystal structure of trimethylammonium tetrafluoroborate in three solid phases

Hiroyuki Ishida, Setsuo Kashino, Ryuichi Ikeda

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The crystal structure of (CH₃)₃NHBF₄ 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) Å) and tetragonal (a = 9.815(5) and c = 6.895(5) Å), respectively. The room temperature phase (Phase III) forms a monoclinic lattice (space group P2₁/m, a = 5.7017(8), b = 8.5724(9), c = 7.444(1) Å, and β= 102.76(1)°). BF₄^- ions in this phase were shown to be disordered in four orientations.

Original language	English
Pages (from-to)	765-768
Number of pages	4
Journal	Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences
Volume	55
Issue number	9-10
DOIs	https://doi.org/10.1515/zna-2000-9-1004
Publication status	Published - 2000

Keywords

Crystal structure
Disorder
Ionic plastic phase
X-ray diffraction

ASJC Scopus subject areas

Mathematical Physics
Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1515/zna-2000-9-1004

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title = "Crystal structure of trimethylammonium tetrafluoroborate in three solid phases",

abstract = "The crystal structure of (CH3)3NHBF4 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) {\AA}) and tetragonal (a = 9.815(5) and c = 6.895(5) {\AA}), respectively. The room temperature phase (Phase III) forms a monoclinic lattice (space group P21/m, a = 5.7017(8), b = 8.5724(9), c = 7.444(1) {\AA}, and β= 102.76(1)°). BF4- ions in this phase were shown to be disordered in four orientations.",

keywords = "Crystal structure, Disorder, Ionic plastic phase, X-ray diffraction",

author = "Hiroyuki Ishida and Setsuo Kashino and Ryuichi Ikeda",

note = "Funding Information: This work was partly supported by Grant-in-Aid for Scientific Research (B) (No. 10440208 and 12440192) from the Ministry of Education, Science, Sports and Culture, Japan.",

year = "2000",

doi = "10.1515/zna-2000-9-1004",

language = "English",

volume = "55",

pages = "765--768",

journal = "Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences",

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TY - JOUR

T1 - Crystal structure of trimethylammonium tetrafluoroborate in three solid phases

AU - Ishida, Hiroyuki

AU - Kashino, Setsuo

AU - Ikeda, Ryuichi

N1 - Funding Information: This work was partly supported by Grant-in-Aid for Scientific Research (B) (No. 10440208 and 12440192) from the Ministry of Education, Science, Sports and Culture, Japan.

PY - 2000

Y1 - 2000

N2 - The crystal structure of (CH3)3NHBF4 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) Å) and tetragonal (a = 9.815(5) and c = 6.895(5) Å), respectively. The room temperature phase (Phase III) forms a monoclinic lattice (space group P21/m, a = 5.7017(8), b = 8.5724(9), c = 7.444(1) Å, and β= 102.76(1)°). BF4- ions in this phase were shown to be disordered in four orientations.

AB - The crystal structure of (CH3)3NHBF4 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) Å) and tetragonal (a = 9.815(5) and c = 6.895(5) Å), respectively. The room temperature phase (Phase III) forms a monoclinic lattice (space group P21/m, a = 5.7017(8), b = 8.5724(9), c = 7.444(1) Å, and β= 102.76(1)°). BF4- ions in this phase were shown to be disordered in four orientations.

KW - Crystal structure

KW - Disorder

KW - Ionic plastic phase

KW - X-ray diffraction

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U2 - 10.1515/zna-2000-9-1004

DO - 10.1515/zna-2000-9-1004

M3 - Article

AN - SCOPUS:0040218425

SN - 0932-0784

VL - 55

SP - 765

EP - 768

JO - Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences

JF - Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences

IS - 9-10

ER -

Crystal structure of trimethylammonium tetrafluoroborate in three solid phases

Abstract

Keywords

ASJC Scopus subject areas

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