Tuning magnetic properties by crystal engineering in a family of coordination polymers based on Ni() sulphates

A new family of hybrid organic-inorganic layered materials based on nickel sulfates was synthesized using a simple, solvent-free synthesis approach using 1,2-phenylenediamine (OPD), 1,3-phenylenediamine (MPD), and 1,4-phenylenediamine (PPD) as organic templates and ligands. Diamines act as structure...

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Bibliographic Details
Published in:New journal of chemistry 2022-08, Vol.46 (31), p.14786-14792
Main Authors: González Guillén, Anabel B, Konieczny, Piotr, Luberda-Durna, Katarzyna, Oszajca, Marcin, Kozie, Marcin, asocha, Wies aw
Format: Article
Language:English
Subjects:
Antiferromagnetism
Coordination polymers
Couplings
Crystal structure
Diamines
Ferromagnetism
Layered materials
Magnetic properties
Nickel sulfate
Phenylenediamine
X ray powder diffraction
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Summary:A new family of hybrid organic-inorganic layered materials based on nickel sulfates was synthesized using a simple, solvent-free synthesis approach using 1,2-phenylenediamine (OPD), 1,3-phenylenediamine (MPD), and 1,4-phenylenediamine (PPD) as organic templates and ligands. Diamines act as structure-directing agents to obtain 1D [Ni(OPD) 2 SO 4 ] ( 1 ), 2D [Ni(MPD) 2 SO 4 ] ( 2 ) and 3D [Ni(PPD)SO 4 ] ( 3 ) frameworks. The crystal structures of 1-3 were determined using data from X-ray powder diffraction (XRPD) measurements and represent I 2/ a , Cc , and Cmcm space groups, respectively. The compounds display different dimensionalities of the frameworks; however, the magnetic studies reveal transitions to 3D magnetic long-range ordered phases in all three cases below 23 K ( 1 ), 25 K ( 2 ) and 25 K ( 3 ). The observed ordering in all compounds is a consequence of significant interchain ( 1 ) and intralayer ( 2 and 3 ) interactions which lead to considerable spinspin correlations, which are strong enough to couple the adjacent layers. In addition, in all three compounds, there is a competition between ferromagnetic and antiferromagnetic interactions in which the latter ones successively get stronger with the substitution of dipolar couplings by superexchange ones. A new family of hybrid organic-inorganic layered materials based on nickel sulfates was synthesized using a one-pot, solvent-free synthetic approach using 1,2-phenylenediamine (OPD), 1,3-phenylenediamine (MPD) and 1,4-phenylenediamine (PPD).
ISSN:1144-0546
1369-9261
DOI:10.1039/d2nj01188c