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@article{Boström:2019:10.1039/c8dt04463e,
author = {Boström, HLB and Collings, IE and Cairns, AB and Romao, CP and Goodwin, AL},
doi = {10.1039/c8dt04463e},
journal = {Dalton Transactions},
pages = {1647--1655},
title = {High-pressure behaviour of Prussian blue analogues: interplay of hydration, Jahn-Teller distortions and vacancies},
url = {http://dx.doi.org/10.1039/c8dt04463e},
volume = {48},
year = {2019}
}

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TY  - JOUR
AB  - We report a high-pressure crystallographic study of four hydrated Prussian blue analogues: M[Pt(CN)6] and M[Co(CN)6]0.67 (M = Mn2+, Cu2+) in the range 0-3 GPa. Mn[Co(CN)6]0.67 was studied by single-crystal X-ray diffraction, whereas the other systems were only available in polycrystalline form. The Mn-containing compounds undergo pressure-induced phase transitions from Fm3[combining macron]m to R3[combining macron] at ∼1.0-1.5 GPa driven by cooperative tilting of the octahedral units. No phase transition was found for the orbitally disordered Cu[Co(CN)6]0.67 up to 3 GPa. Mn[Co(CN)6]0.67 is significantly softer than the other samples, with a bulk modulus of ∼14 GPa compared to ∼35 GPa of the powdered samples. The discrepant pressure responses are discussed in terms of the presence of structural defects, Jahn-Teller distortions, and hydration. The implications for the development of polar systems are reviewed based upon our high-pressure study.
AU  - Boström,HLB
AU  - Collings,IE
AU  - Cairns,AB
AU  - Romao,CP
AU  - Goodwin,AL
DO  - 10.1039/c8dt04463e
EP  - 1655
PY  - 2019///
SN  - 1477-9234
SP  - 1647
TI  - High-pressure behaviour of Prussian blue analogues: interplay of hydration, Jahn-Teller distortions and vacancies
T2  - Dalton Transactions
UR  - http://dx.doi.org/10.1039/c8dt04463e
UR  - https://www.ncbi.nlm.nih.gov/pubmed/30548036
UR  - http://hdl.handle.net/10044/1/65428
VL  - 48
ER  -

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