Cubic CsCaH3 and hexagonal RbMgH3: New examples of fluoride-related perovskite-type hydrides

F. Gingl, T. Vogt, Etsuo Akiba, K. Yvon

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

The title compounds and their deuterides were synthesized by sintering stoichiometric mixtures of the binary hydrides (deutendes) at 675 K and 200 bar H2 (D2) for 10 days and characterized by X-ray and neutron powder diffraction. CsCaH3 crystallizes with the cubic perovskite structure, space group Pm3m (221), a=4.6170(2) Å (hydride), a=4.6093(2) Å (deuteride). The distances (Cs-D: 3.26 Å, Ca-D: 2.31 Å, D-D: 3.26 Å) are consistent with those found in Cs2CaH4. RbMgH3 is the first example of a metal hydride crystallizing with the BaTiO3 (6H variant of the hexagonal perovskite) structure, space group P63/mmc (194), a=5.9030(1) Å, c=14.3158(3) Å (deuteride). The M-D distances (Rb-D: 2.96-3.03 Å, Mg-D: 2.01-2.04 Å) and shortest D-D distances (2.52 Å) are in agreement with distances found in other deuterides.

Original languageEnglish
Pages (from-to)125-129
Number of pages5
JournalJournal of Alloys and Compounds
Volume282
Issue number1-2
Publication statusPublished - Dec 1 1999

Fingerprint

Fluorides
Hydrides
Perovskite
Neutron powder diffraction
X ray powder diffraction
Sintering
Metals
perovskite

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Cubic CsCaH3 and hexagonal RbMgH3 : New examples of fluoride-related perovskite-type hydrides. / Gingl, F.; Vogt, T.; Akiba, Etsuo; Yvon, K.

In: Journal of Alloys and Compounds, Vol. 282, No. 1-2, 01.12.1999, p. 125-129.

Research output: Contribution to journalArticle

Gingl, F. ; Vogt, T. ; Akiba, Etsuo ; Yvon, K. / Cubic CsCaH3 and hexagonal RbMgH3 : New examples of fluoride-related perovskite-type hydrides. In: Journal of Alloys and Compounds. 1999 ; Vol. 282, No. 1-2. pp. 125-129.
@article{01464e2b143942429366f170c72e34c2,
title = "Cubic CsCaH3 and hexagonal RbMgH3: New examples of fluoride-related perovskite-type hydrides",
abstract = "The title compounds and their deuterides were synthesized by sintering stoichiometric mixtures of the binary hydrides (deutendes) at 675 K and 200 bar H2 (D2) for 10 days and characterized by X-ray and neutron powder diffraction. CsCaH3 crystallizes with the cubic perovskite structure, space group Pm3m (221), a=4.6170(2) {\AA} (hydride), a=4.6093(2) {\AA} (deuteride). The distances (Cs-D: 3.26 {\AA}, Ca-D: 2.31 {\AA}, D-D: 3.26 {\AA}) are consistent with those found in Cs2CaH4. RbMgH3 is the first example of a metal hydride crystallizing with the BaTiO3 (6H variant of the hexagonal perovskite) structure, space group P63/mmc (194), a=5.9030(1) {\AA}, c=14.3158(3) {\AA} (deuteride). The M-D distances (Rb-D: 2.96-3.03 {\AA}, Mg-D: 2.01-2.04 {\AA}) and shortest D-D distances (2.52 {\AA}) are in agreement with distances found in other deuterides.",
author = "F. Gingl and T. Vogt and Etsuo Akiba and K. Yvon",
year = "1999",
month = "12",
day = "1",
language = "English",
volume = "282",
pages = "125--129",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",
number = "1-2",

}

TY - JOUR

T1 - Cubic CsCaH3 and hexagonal RbMgH3

T2 - New examples of fluoride-related perovskite-type hydrides

AU - Gingl, F.

AU - Vogt, T.

AU - Akiba, Etsuo

AU - Yvon, K.

PY - 1999/12/1

Y1 - 1999/12/1

N2 - The title compounds and their deuterides were synthesized by sintering stoichiometric mixtures of the binary hydrides (deutendes) at 675 K and 200 bar H2 (D2) for 10 days and characterized by X-ray and neutron powder diffraction. CsCaH3 crystallizes with the cubic perovskite structure, space group Pm3m (221), a=4.6170(2) Å (hydride), a=4.6093(2) Å (deuteride). The distances (Cs-D: 3.26 Å, Ca-D: 2.31 Å, D-D: 3.26 Å) are consistent with those found in Cs2CaH4. RbMgH3 is the first example of a metal hydride crystallizing with the BaTiO3 (6H variant of the hexagonal perovskite) structure, space group P63/mmc (194), a=5.9030(1) Å, c=14.3158(3) Å (deuteride). The M-D distances (Rb-D: 2.96-3.03 Å, Mg-D: 2.01-2.04 Å) and shortest D-D distances (2.52 Å) are in agreement with distances found in other deuterides.

AB - The title compounds and their deuterides were synthesized by sintering stoichiometric mixtures of the binary hydrides (deutendes) at 675 K and 200 bar H2 (D2) for 10 days and characterized by X-ray and neutron powder diffraction. CsCaH3 crystallizes with the cubic perovskite structure, space group Pm3m (221), a=4.6170(2) Å (hydride), a=4.6093(2) Å (deuteride). The distances (Cs-D: 3.26 Å, Ca-D: 2.31 Å, D-D: 3.26 Å) are consistent with those found in Cs2CaH4. RbMgH3 is the first example of a metal hydride crystallizing with the BaTiO3 (6H variant of the hexagonal perovskite) structure, space group P63/mmc (194), a=5.9030(1) Å, c=14.3158(3) Å (deuteride). The M-D distances (Rb-D: 2.96-3.03 Å, Mg-D: 2.01-2.04 Å) and shortest D-D distances (2.52 Å) are in agreement with distances found in other deuterides.

UR - http://www.scopus.com/inward/record.url?scp=0032777959&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032777959&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0032777959

VL - 282

SP - 125

EP - 129

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

IS - 1-2

ER -