An unusual homospin CoII ferrimagnetic single-chain magnet with large hysteresis

A coordination framework formulated as [Co3(L)4(OH)2(H2O)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 μ3-OH and (μ3-OH)(...

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Bibliographic Details
Published in:CrystEngComm 2019-01, Vol.21 (45), p.6958-6963
Main Authors: Zhao, Fei, Zhen-Peng, Dong, Zhi-Liang, Liu, Yan-Qin, Wang
Format: Article
Language:English
Subjects:
Chains
Coordination
Crystallography
Ferrimagnetism
Hysteresis
Online Access:Get full text
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Summary:A coordination framework formulated as [Co3(L)4(OH)2(H2O)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 μ3-OH and (μ3-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 Δτ1/k = 180 K and Δτ2/k = 75 K, respectively.
ISSN:1466-8033
DOI:10.1039/c9ce01246j