Structural Phase Transitions in Zinc(II) Perchlorate Hexahydrate | Zendy

Borzęckaprokop B. | Zendy; Hodorowicz S. A. | Zendy

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Structural Phase Transitions in Zinc(II) Perchlorate Hexahydrate

Author(s) -

Borzęckaprokop B.,

Hodorowicz S. A.

Publication year - 1995

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.2170300506

Subject(s) - orthorhombic crystal system , perchlorate , zinc , crystallography , phase transition , diffraction , ammonium perchlorate , lattice (music) , atmospheric temperature range , phase (matter) , chemistry , materials science , crystal structure , ion , condensed matter physics , physics , thermodynamics , optics , organic chemistry , combustion , acoustics

Phase transitions in zinc perchlorate hexahydrate are studied by X‐ray powder diffraction method. Structural changes in the vicinity of transitions detected at 364.5 K and 256.3 K are characterized. At the former the orthorhombic Pmn2 1 phase transforms into the Pmna one ( a = 7.812(1), b = 13.518(3) and c = 5.279(1) Å at 348.6 K). The latter involves changes of the orthorhombic unit cell ( a = 7.7922(9), b = 13.537(2) and c = 5.0588(6) Å at 251.0 K). Temperature dependence of lattice parameters in the range of 180 to 363.3 K are presented.

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