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Issue 36, 2018
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Framework and coordination strain in two isostructural hybrid metal–organic perovskites

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Abstract

Monotonic compression of two iso-structural hybrid metal–organic perovskites [DMA]M(HCOO)3 (M = Co, Ni) has been connected to their structural distortions. The strongest effects of pressure occur in the tilts of the MO6 octahedra, M–O bond compression, angular distortions within the MO6 octahedra and small folding between the octahedra and formate units. The anisotropic stronger compression along the trigonal axis is consistent with NH⋯O bonding nearly perpendicular to this direction. Raman spectra indicate a first order solid-state phase transition between 3–5 GPa in both formates, which can be associated with the symmetry breaking induced by the ordering of the Dma cation.

Graphical abstract: Framework and coordination strain in two isostructural hybrid metal–organic perovskites

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Publication details

The article was received on 28 May 2018, accepted on 25 Jul 2018 and first published on 26 Jul 2018


Article type: Paper
DOI: 10.1039/C8CE00884A
Citation: CrystEngComm, 2018,20, 5348-5355
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    Framework and coordination strain in two isostructural hybrid metal–organic perovskites

    S. Sobczak, A. Chitnis, M. Andrzejewski, M. Mączka, S. Gohil, N. Garg and A. Katrusiak, CrystEngComm, 2018, 20, 5348
    DOI: 10.1039/C8CE00884A

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