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An Exotic layered compound consisting of interconnected arsenato-polyoxovanadate clusters: thermal and magnetic properties and liquid phase exfoliation

The compound [Mn(teta)]4V16As4O42(H2O)n ⋅ 10 H2O (teta=triethylenetetraamine) was synthesized under solvothermal conditions. The crystal structure consists of layers composed of V16As4O42 moieties joined by O−Mn−O bridges. The crystal water molecules can be thermally removed and they are reintegrate...

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Bibliographic Details
Main Authors: Mahnke, Lisa K. (Author) , Stehlíková, Gabriela (Author) , Synnatschke, Kevin (Author) , Backes, Claudia (Author) , Näther, Christian (Author) , Bensch, Wolfgang (Author)
Format: Article (Journal)
Language:English
Published: January 2021
In: ChemNanoMat
Year: 2021, Volume: 7, Issue: 1, Pages: 78-84
ISSN:2199-692X
DOI:10.1002/cnma.202000563
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/cnma.202000563
Verlag, lizenzpflichtig, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/cnma.202000563
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Author Notes:Lisa K. Mahnke, Gabriela Stehlíková, Kevin Synnatschke, Claudia Backes, Christian Näther, and Wolfgang Bensch
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Summary:The compound [Mn(teta)]4V16As4O42(H2O)n ⋅ 10 H2O (teta=triethylenetetraamine) was synthesized under solvothermal conditions. The crystal structure consists of layers composed of V16As4O42 moieties joined by O−Mn−O bridges. The crystal water molecules can be thermally removed and they are reintegrated in humid atmosphere. The water sorption occurs in two steps indicating differing strengths of hydrogen bonding interactions. Investigations of the magnetic properties present evidence that the antiferromagnetic exchange interactions between the spins of the Mn2+ and of the V4+ cations are relatively strong. The magnetocaloric effect could be observed but is relatively small due to the antiferromagnetic exchange. Using liquid phase exfoliation, small crystallites with thicknesses as low as 10 nm could be obtained, while larger crystallites exhibit thicknesses of 20-40 nm.
Item Description:Online veröffentlicht: 05 November 2020
Gesehen am 23.02.2024
Physical Description:Online Resource
ISSN:2199-692X
DOI:10.1002/cnma.202000563

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