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Inorganic co-crystal formation and thermal disproportionation in a dicyanometallate ‘superperovskite’
Authors:
Joshua A.
Hill
(University of Oxford; Courtauld Institute of Art)
,
Claire A.
Murray
(Diamond Light Source)
,
Chiu C.
Tang
(Diamond Light Source)
,
Peter M. M.
Thygesen
(University of Oxford)
,
Amber L.
Thompson
(University of Oxford)
,
Andrew
Goodwin
(University of Oxford)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Chemical Communications
, VOL 318
State:
Published (Approved)
Published:
April 2019
Diamond Proposal Number(s):
11544
,
9981
Abstract: We report the synthesis, crystal structure, and thermally-driven phase transformation of the dicyanometallate superperovskite co-crystal [NBu4]Mn[Au(CN)2]3·[NBu4]ClO4. This phase is understandable in terms of the conventional ABX3 perovskite structure type, but with the NBu4+ A-site cation displaced onto the perovskite cage face and 1-dimensional AX′ chains included within framework pores opened up by these displacements. On heating to 380 K, the co-crystal disproportionates into its two inorganic components: a bcs-structured ABX3 phase and [NBu4]ClO4. This system illustrates a new type of structural and phase complexity accessible to dicyanometallate perovskites.
Subject Areas:
Chemistry,
Materials
Instruments:
I11-High Resolution Powder Diffraction
,
I19-Small Molecule Single Crystal Diffraction
Added On:
01/05/2019 14:45
Discipline Tags:
Chemistry
Materials Science
Inorganic Chemistry
Perovskites
Metallurgy
Technical Tags:
Diffraction
Single Crystal X-ray Diffraction (SXRD)
X-ray Powder Diffraction