Two azido-bridged [2×2] cobalt(ii) grids featuring single-molecule magnet behaviour.

作者信息

Guo Zhilin, Deng Yi-Fei, Zhang Yipei, Pikramenou Zoe, Zhang Yuan-Zhu

机构信息

Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, P. R. China.

School of Chemistry, The University of Birmingham, Edgbaston B15 2TT, UK.

出版信息

Dalton Trans. 2020 Jul 17;49(27):9218-9222. doi: 10.1039/d0dt01461c.

The self-assembly of Co(ii) salts, pyridazine derivatives and azides afforded two azido-bridged [2×2] grid-type complexes {[(L)4CoII4(N3)4][BPh4]4}·sol (1, L = 3,6-bis(3,5-dimethyl-1H-pyrazol-1-yl)pyridazine (pzdz) and sol = 4CH3CN·3CHCl3·2CH3OH and 2, L = 3,6-di(pyridin-2-yl)pyridazine (pydz) and sol = 4CH3CN). Upon comparison with other related grid-like complexes, the incorporation of end-on azido-bridges resulted in overall intramolecular ferromagnetic couplings, and thus endowed complexes 1 and 2 single molecule magnet behaviour with field-induced slow magnetic relaxation.