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Title: Order-disorder antiferroelectric phase transition in a hybrid inorganic-organic framework with the perovskite architecture.

Abstract

[(CH{sub 3}){sub 2}NH{sub 2}]Zn(HCOO){sub 3}, 1, adopts a structure that is analogous to that of a traditional perovskite, ABX{sub 3}, with A = [(CH{sub 3}){sub 2}NH{sub 2}], B = Zn, and X = HCOO. The hydrogen atoms of the dimethyl ammonium cation, which hydrogen bond to oxygen atoms of the formate framework, are disordered at room temperature. X-ray powder diffraction, dielectric constant, and specific heat data show that 1 undergoes an order-disorder phase transition on cooling below {approx}156 K. We present evidence that this is a classical paraelectric to antiferroelectric phase transition that is driven by ordering of the hydrogen atoms. This sort of electrical ordering associated with order-disorder phase transition is unprecedented in hybrid frameworks and opens up an exciting new direction in rational synthetic strategies to create extended hybrid networks for applications in ferroic-related fields.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
NSF-DMR GRANT
OSTI Identifier:
939337
Report Number(s):
ANL/XSD/JA-62166
Journal ID: ISSN 0002-7863; JACSAT; TRN: US200823%%94
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
J. Am. Chem. Soc.
Additional Journal Information:
Journal Volume: 130; Journal Issue: 32 ; Aug. 13, 2008; Journal ID: ISSN 0002-7863
Country of Publication:
United States
Language:
ENGLISH
Subject:
08 HYDROGEN; ARCHITECTURE; ATOMS; DIFFRACTION; FORMATES; HYDROGEN; OXYGEN; PERMITTIVITY; PEROVSKITE; SPECIFIC HEAT

Citation Formats

Jain, P, Dala, N S, Toby, B H, Kroto, H W, Cheetham, A K, X-Ray Science Division, Florida State Univ., and Univ. of Cambridge. Order-disorder antiferroelectric phase transition in a hybrid inorganic-organic framework with the perovskite architecture.. United States: N. p., 2008. Web. doi:10.1021/ja801952e.
Jain, P, Dala, N S, Toby, B H, Kroto, H W, Cheetham, A K, X-Ray Science Division, Florida State Univ., & Univ. of Cambridge. Order-disorder antiferroelectric phase transition in a hybrid inorganic-organic framework with the perovskite architecture.. United States. doi:10.1021/ja801952e.
Jain, P, Dala, N S, Toby, B H, Kroto, H W, Cheetham, A K, X-Ray Science Division, Florida State Univ., and Univ. of Cambridge. Wed . "Order-disorder antiferroelectric phase transition in a hybrid inorganic-organic framework with the perovskite architecture.". United States. doi:10.1021/ja801952e.
@article{osti_939337,
title = {Order-disorder antiferroelectric phase transition in a hybrid inorganic-organic framework with the perovskite architecture.},
author = {Jain, P and Dala, N S and Toby, B H and Kroto, H W and Cheetham, A K and X-Ray Science Division and Florida State Univ. and Univ. of Cambridge},
abstractNote = {[(CH{sub 3}){sub 2}NH{sub 2}]Zn(HCOO){sub 3}, 1, adopts a structure that is analogous to that of a traditional perovskite, ABX{sub 3}, with A = [(CH{sub 3}){sub 2}NH{sub 2}], B = Zn, and X = HCOO. The hydrogen atoms of the dimethyl ammonium cation, which hydrogen bond to oxygen atoms of the formate framework, are disordered at room temperature. X-ray powder diffraction, dielectric constant, and specific heat data show that 1 undergoes an order-disorder phase transition on cooling below {approx}156 K. We present evidence that this is a classical paraelectric to antiferroelectric phase transition that is driven by ordering of the hydrogen atoms. This sort of electrical ordering associated with order-disorder phase transition is unprecedented in hybrid frameworks and opens up an exciting new direction in rational synthetic strategies to create extended hybrid networks for applications in ferroic-related fields.},
doi = {10.1021/ja801952e},
journal = {J. Am. Chem. Soc.},
issn = {0002-7863},
number = 32 ; Aug. 13, 2008,
volume = 130,
place = {United States},
year = {2008},
month = {8}
}