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Magnetic “Molecular Oligomers” Based on Decametallic Supertetrahedra: A Giant Mn 49 Cuboctahedron and its Mn 25 Na 4 Fragment
Author(s) -
Manoli Maria,
Alexandrou Sofia,
Pham Linh,
Lorusso Giulia,
Wernsdorfer Wolfgang,
Evangelisti Marco,
Christou George,
Tasiopoulos Anastasios J.
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201509461
Subject(s) - manganese , crystallography , cluster (spacecraft) , molecule , single molecule magnet , chemistry , magnetization , ground state , ion , materials science , physics , atomic physics , magnetic field , organic chemistry , quantum mechanics , computer science , programming language
Two nanosized Mn 49 and Mn 25 Na 4 clusters based on analogues of the high‐spin ( S =22) [Mn III 6 Mn II 4 (μ 4 ‐O) 4 ] 18+ supertetrahedral core are reported. Mn 49 and Mn 25 Na 4 complexes consist of eight and four decametallic supertetrahedral subunits, respectively, display high virtual symmetry ( O h ), and are unique examples of clusters based on a large number of tightly linked high nuclearity magnetic units. The complexes also have large spin ground‐state values (Mn 49 : S =61/2; Mn 25 Na 4 : S=51/2) with the Mn 49 cluster displaying single‐molecule magnet (SMM) behavior and being the second largest reported homometallic SMM.