Linear trinuclear manganese(II) complexes: crystal structures and magnetic properties |
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| Affiliation: | 1. Department of Chemical Engineering, Inner Mongolia Vocational College of Chemical Engineering, Huhhot, Inner Mongolia 010070, China;2. College of Chemistry and Environmental Science, Inner Mongolia Normal University, Huhhot, Inner Mongolia 010022, China |
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| Abstract: | Two new trinuclear manganese(II) complexes, Mn3(O2CCH(CH3)2)6(N–N)2] (N–N is 1,10′-phenanthroline (1) and 2,2′-bipyridine (2)) have been prepared and fully characterized. Single crystal X-ray diffraction analysis confirmed a linear arrangement of three Mn(II) centers bridged by six isobutyric carboxylate groups. The magnetic measurements showed that both complexes exhibit an ST = 5/2 spin ground state induced by antiferromagnetic interactions between the Mn(II) sites: J/kB = −2.31(2) and −2.67(2) K for 1 and 2, respectively. |
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