An unusual homospin Co II ferrimagnetic single-chain magnet with large hysteresis

A coordination framework formulated as [ Co 3 (L) 4 (OH) 2 (H 2 O) 2 ] n ( 1 ) (L = 4-(tetrazol-5-yl)phenyl-4,2′:6′,4′′-terpyridine) was synthesized and was structurally and magnetically characterized. Compound 1 features 1D chains in which unprecedented triangular non-uniform chains with mixed μ 3...

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Bibliographic Details
Published in:CrystEngComm 2019-12, Vol.21 (45), p.6958-6963
Main Authors: Zhao, Fei, Dong, Zhen-Peng, Liu, Zhi-Liang, Wang, Yan-Qin
Format: Article
Language:English
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Summary:A coordination framework formulated as [ Co 3 (L) 4 (OH) 2 (H 2 O) 2 ] n ( 1 ) (L = 4-(tetrazol-5-yl)phenyl-4,2′:6′,4′′-terpyridine) was synthesized and was structurally and magnetically characterized. Compound 1 features 1D chains in which unprecedented triangular non-uniform chains with mixed μ 3 -OH and (μ 3 -OH)(μ- N-N -tetrazolate) 2 bridges are interlinked by the ligands into a 2D coordination framework. Magnetic investigations indicate that 1D ferrimagnetic chains, single-chain magnet like behaviors and large hysteresis coexist in the magnetic system of 1 . The activation energies for magnetic reversal in the infinite- and finite-chain regimes are Δ τ 1 / k = 180 K and Δ τ 2 / k = 75 K, respectively.
ISSN:1466-8033
1466-8033
DOI:10.1039/C9CE01246J