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Cooperative magnetic behavior of α‐ and β‐manganese(III) phthalocyanine tetracyanoethenide (1:1), [Mn III Pc] ·⊕ [TCNE] ·⊖
Author(s) -
Miller Joel S.,
Vazquez Carlos,
Calabrese Joseph C.,
McLean R. Scott,
Epstein Arthur J.
Publication year - 1994
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19940060306
Subject(s) - tetracyanoethylene , manganese , phthalocyanine , materials science , molecule , crystallography , inductive coupling , electron transfer , photochemistry , chemistry , nanotechnology , organic chemistry , physics , quantum mechanics , metallurgy
Cooperative magnetic interactions have been observed in α‐[MnPc][TCNE], which results from the reaction of manganese phthalocyanine with tetracyanoethylene. This is the latest in a series of molecule based materials found to exibit such unusual magnetic behaviour. The α polymorph displays very strong magnetic coupling, while the coupling in β‐[MnPc][TCNE] is much weeker. The IR data suggest that the behaviour of the α polymorph is unlikely to be unique among the metallomacrocyclic electron‐transfer complexes. It is proposed that uniformity of the one0‐dimensional chains in α‐[MnPc][TCNE] and the corresponding lack of uniformity of those in the β polymorph may give rise to the difference in behaviour.