Phase transition and decomposition of A2MX4 [A = (C2H5)4N; M = Co(II), Ni(II) and Cu(II); X = Cl and Br] in the solid state

Ghosh, Ashutosh ; De, Goutam ; Ray Chaudhuri, Nirmalendu (1986) Phase transition and decomposition of A2MX4 [A = (C2H5)4N; M = Co(II), Ni(II) and Cu(II); X = Cl and Br] in the solid state Thermochimica Acta, 108 . pp. 97-103. ISSN 0040-6031

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0040-6031(86)85082-1

Abstract

A2MBr4 undergoes endothermic reversible phase transitions at subambient and above ambient temperatures. The cooling curve of A2MBr4 (M = Cu and Ni) above 400 K is split compared to the corresponding heating curve and the nature of splitting appears to be dependent on time. The low temperature phase transitions are due to orientation of both td cations and anions and the high temperature phases are probably followed by the formation of several intermediate structures.

Item Type:Article
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ID Code:108479
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