Self-assembly of linear [Mn II 2 Mn III ] units with end-on azido bridges: the construction of a ferromagnetic chain using S T = 7 high-spin trimers

Yuan Jiang, Lei Qin, Guanghua Li, Ghulam Abbas, Yaqun Cao, Gang Wu, Tian Han, Yan-Zhen Zheng, Shilun Qiu

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© The Royal Society of Chemistry 2015. The controlled organization of high-spin complexes into 1D coordination polymers is a challenge in molecular magnetism. In this work, we report a ferromagnetic Mn trimer Mn3(HL)2(CH3OH)6(Br)4·Br·(CH3OH)21 (H2L = 2-[(9H-fluoren-9-yl)amino]propane-1,3-diol) with the ground spin state of ST = 7 that can be assembled into a one-dimensional coordination chain [Mn3(HL)2(CH3OH)2(Br)4(N3)(H2O)·CH3OH]∞2 using azido bridging ligands. Interestingly, the ferromagnetic nature of 1 is well retained in 2. However, due to the negligible magnetic anisotropy in 1, both 1 and 2 do not show slow-relaxation of magnetization, which indicates that during the process of molecular assembly not only the intratrimer magnetic interaction but also the magnetic anisotropy of the trimer can be reserved.
Original languageEnglish (US)
Pages (from-to)5205-5210
Number of pages6
JournalDalton Trans.
Issue number11
StatePublished - 2015
Externally publishedYes

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