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Ferromagnetic Coupling in the Bis(μ‐end‐on‐azido)iron( III ) Dinuclear Complex Anion of [Fe II (bpym) 3 ] 2 [Fe 2 III (N 3 ) 10 ]·2H 2 O
Author(s) -
De Munno Giovanni,
Poerio Teresa,
Viau Guillaume,
Julve Miguel,
Lloret Francesc
Publication year - 1997
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199714591
Subject(s) - crystallography , ion , ferromagnetism , dimer , chemistry , spin states , coupling (piping) , inorganic chemistry , materials science , physics , condensed matter physics , organic chemistry , metallurgy
An energetically low‐lying spin state with S = 5 is observed in the title compound, in which low‐spin iron( II ) [Fe(bpym) 3 ] 2+ and high‐spin iron( III ) [Fe 2 (N 3 ) 10 ] 4− ions coexist. The magnitude of the ferromagnetic coupling in the dimer ( J = + 4.8 cm −1 ) is twice that reported for a high‐spin Mn II complex with the same bridging ligands. The structure of the anion is shown on the right.