期刊
SCIENTIFIC REPORTS
卷 7, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41598-017-15852-1
关键词
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资金
- National Key Basic Re-search Program of China [2013CB933403]
- National Natural Science Foundation of China [21471154, 91022014]
- Chinese Academy of Sciences [XDB12010103]
Solvents play important roles in our lives, they are also of interest in molecular materials, especially for molecular magnets. The solvatomagnetic effect is generally used for trigger and/or regulation of magnetic properties in molecule-based systems, however, molecular nanomagnets showing solvatomagnetic effects are very difficult to obtain. Here we report four 3d-4f heterometallic cluster complexes containing ROH lattice solvent molecules, [Cu3Tb2(H3L)(2)(OAc)(2)(hfac)(4)]center dot 2ROH {H6L = 1,3-Bis[tris(hydroxymethyl) methylamino] propane, hfac(-) = hexafluoroacetylacetonate; R = CH3, 1; R = C2H5, 2; R = C3H7, 3; R = H, 4}. Single-molecule magnet (SMM) properties of these four complexes were observed to be dependent on the ROH lattice solvent molecule. There is an interesting magneto-structural correlation: the larger the R group, the higher the energy barrier. For the first time, the solvatomagnetic effect is used for the continuous fine adjustment of the energy barrier of 0D molecular nanomagnets. Additionally, [Cu3Dy2(H3L)(2)(OAc)(2)(hfac)(4)]center dot 2MeOH (5), an analogue of [Cu3Tb2(H3L)(2)(OAc)(2)(hfac)(4)]center dot 2MeOH (1), is also reported for comparison.
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