ÅAlso, as suggested by high thermal parameters, these solvent sites around Zn2 are not fully occupied, even for as-synthesized samples. Villain Molecular Nanomagnets (Oxford University Press, Oxford, 2006). Because the coordination environment of Zn2 is more crowded than that of Zn1, the Zn2-solvent bond is relatively weak at 2.57. And their energy barriers were 1.2 and 12.2 K at applied 1000 Oe static magnetic field.ĭ. AC magnetic susceptibilities exhibited that complex 1 and 2 showed out-of-phase ( χ″) component of ac-susceptibilities at zero Oe static magnetic field over the frequency range of 9–999 Hz, which energy barriers were 0.44 and 0.13 K. It might be due to the steric effect that the coordination atoms of piv ligands chelated and blocked the structure. Each Fe 3 triangle was connected to the capping Dy(III) through µ 4-O bridges for complex 1, and each Fe 3 triangle was connected to the capping Fe(III) through µ 4-O bridges for complex 2. Crystal structure showed that the central structure of 8+ arranged in what was often termed an absent cubic shape, although here the Fe centers were strictly coplanar. We successfully obtained two type of heterometallic complexes ♼H 3CN♼H 3OH ( 1) and ♼H 3CN ( 2) by using 2,2′-((2-((2-hydroxyethyl)amino)cyclohexyl)azanediyl)bis(ethan-1-ol) (H 3 L 1), Dy(NO 3) 3♶H 2O, FeCl 3 and pivalic acid (piv) or acetic acid under room temperature in different solvent.
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