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Framework and Coordination Strain in Two Isostructural Hybrid Metal-Organic Perovskites

Abstract

Monotonic compression of two iso-structural hybrid metal-organic perovskites [DMA]M(HCOO)3 (M = Co, Ni) has been connected to the structural distortions. The strongest effects of pressure occur in the tilts of the MO6 octahedra, M-O bonds compression, angular distortions within the MeO6 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 the formates, which can be associated with the symmetry breaking induced by the ordering of the Dma cation.

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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, Accepted Manuscript
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    Framework and Coordination Strain in Two Isostructural Hybrid Metal-Organic Perovskites

    S. Sobczak, A. chitnis, M. Andrzejewski, M. maczka, S. Gohil, N. garg and A. Katrusiak, CrystEngComm, 2018, Accepted Manuscript , DOI: 10.1039/C8CE00884A

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