Abstract
Two new trinuclear manganese(II) complexes, [Mn 3(O 2CCH(CH 3) 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 S T = 5/2 spin ground state induced by antiferromagnetic interactions between the Mn(II) sites: J/k B = −2.31(2) and −2.67(2) K for 1 and 2, respectively.
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