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The tridecanuclear heterovalent mixed-metal (Mn 11 Gd 2 ) complex [Mn III 9 Mn II 2 Gd III 2 (O) 8 (OH) 2 (O 2 CR) 17 (NO 3 ) 2 (H 2 O)] has been obtained from the reaction of the hexanuclear compound [Mn 6 O 2 (Piv) 10 (4-Me-py) 2.5 (PivH) 1.5 ] with Gd(NO 3 ) 3 ·6H 2 O in CH 3 CN. The complex presents an unusual “bell”-shaped core with a high-spin ground state and is a new member of the high-nuclearity 3d-4f single-molecule magnets family.
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Mereacre et al. (2007) studied this question.
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