All-round robustness of the Mn19 coordination cluster system: experimental validation of a theoretical prediction.
Experimental and theoretical studies indicate that achieving the maximum possible ground spin state of ST = 83/2 for the mixed-valent Mn19 coordination cluster is insensitive to replacement of its eight μ3-N3 ligands by μ3-Cl, μ3-Br, μ3-OH or μ3-OMe, substantiating that the ferromagnetic interactions are indeed mediated mainly by the internal (μ4-O) ligands. The robustness of the inorganic {Mn(III)12Mn(II)7(μ4-O)8} core is clear from the molecular structure and ESI-MS studies have shown that the structure of the Mn19 aggregate, and also of its Mn18Y analogue, are stable beyond the solid state.
Institut für Anorganische Chemie, Karlsruhe Institute of Technology, Engesserstr. 15, D-76131, Karlsruhe, Germany. annie.powell@kit.edu.
Ayuk M
AM
Ako
Yanhua
Y
Lan
Oliver
O
Hampe
Eduard
E
Cremades
Eliseo
E
Ruiz
Christopher E
CE
Anson
Annie K
AK
Powell