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Fine Tuning the Energy Barrier of Molecular Nanomagnets via Lattice Solvent Molecules.

ABSTRACT: 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]?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]?2MeOH (5), an analogue of [Cu3Tb2(H3L)2(OAc)2(hfac)4]?2MeOH (1), is also reported for comparison.

SUBMITTER: Liu CM

PROVIDER: S-EPMC5686112 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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Fine Tuning the Energy Barrier of Molecular Nanomagnets via Lattice Solvent Molecules.

Liu Cai-Ming CM Zhang De-Qing DQ Zhu Dao-Ben DB

Scientific reports 20171114 1

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</ ...[more]

PMID: 29138465

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Fine Tuning the Energy Barrier of Molecular Nanomagnets via Lattice Solvent Molecules.

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Fine Tuning the Energy Barrier of Molecular Nanomagnets via Lattice Solvent Molecules.

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