Cobalt metal-organic coordination polymer constructed from 2,3′-oxybisbenzoic acid and 1,3-di(pyridin-4-yl)propane: Crystal structure, slow magnetic relaxation and catalytic properties

Abstract A new dysprosium metal–organic framework {[Dy2(L)3(H2O)4]·(acetone)2·(H2O)3}n (Dy2-Acetone) with single-molecule magnet and ferroelectric properties was synthesized through a solvent-induced single-crystal-to-single-crystal (SCSC) transformation. Notably, exchange of the coordinated and guest solvent molecules lead to different magnetic relaxation and ferroelectric properties in the dysprosium MOF system, Dy2-DMF and Dy2-Acetone. Study reveals that the tunable magnetic relaxation behaviors are most likely a result of different local coordination sphere and lattice solvent molecules within the pores which influenced and tuned the relaxation rates of the magnetization. Moreover, disparate polar solvent molecules confined in the MOFs may be the key factors for their different ferroelectric properties.

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Reversible switching of slow magnetic relaxation in a classic lanthanide metal–organic framework system

Chemical Communications ◽

10.1039/c3cc43747g ◽

2013 ◽

Vol 49 (74) ◽

pp. 8244 ◽

Cited By ~ 49

Author(s):

Qi Zhou ◽

Fen Yang ◽

Bingjing Xin ◽

Guang Zeng ◽

Xiaojing Zhou ◽

...

Keyword(s):

Magnetic Relaxation ◽

Metal Organic Framework ◽

Slow Magnetic Relaxation ◽

Metal Organic ◽

Lanthanide Metal ◽

Framework System ◽

Organic Framework

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Slow Magnetic Relaxation in a One-Dimensional Coordination Polymer Constructed from Hepta-Coordinate Cobalt(II) Nodes

Magnetochemistry ◽

10.3390/magnetochemistry6040045 ◽

2020 ◽

Vol 6 (4) ◽

pp. 45

Author(s):

Amit Kumar Mondal ◽

Arpan Mondal ◽

Sanjit Konar

Keyword(s):

Magnetic Susceptibility ◽

Coordination Polymer ◽

Magnetic Anisotropy ◽

Ab Initio Calculations ◽

Direct Current ◽

Magnetic Relaxation ◽

Relaxation Processes ◽

Ac Magnetic Susceptibility ◽

One Dimensional ◽

Slow Magnetic Relaxation

A one-dimensional coordination polymer was synthesized employing hepta-coordinate CoII as nodes and dicyanamide as linkers. Detailed direct current (DC) and alternating current (AC) magnetic susceptibility measurements reveal the presence of field-induced slow magnetic relaxation behavior of the magnetically isolated seven-coordinate CoII center with an easy-plane magnetic anisotropy. Detailed ab initio calculations were performed to understand the magnetic relaxation processes. To our knowledge, the reported complex represents the first example of slow magnetic relaxation in a one-dimensional coordination polymer constructed from hepta-coordinate CoII nodes and dicyanamide linkers.

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Field-induced slow magnetic relaxation in two interpenetrated cobalt(ii) metal–organic framework isomers

CrystEngComm ◽

10.1039/d0ce00979b ◽

2020 ◽

Vol 22 (32) ◽

pp. 5275-5279

Author(s):

Xiao-Qin Wei ◽

Dong Shao ◽

Cai-Long Xue ◽

Xing-Yu Qu ◽

Jie Chai ◽

...

Keyword(s):

Magnetic Relaxation ◽

Metal Organic Framework ◽

Slow Magnetic Relaxation ◽

Metal Organic ◽

Organic Framework

Two interpenetrated cobalt(ii) metal–organic framework (MOF) isomers were successfully synthesized and magnetically characterized. These compounds are the first example of MOF isomers showing field-induced single-ion magnet behavior.

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