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Synthesis, Structure and Magnetic Properties of Mn 2 Tb 2 Tetranuclear Complex with p‐tert‐Butylthiacalix[4]arene
Author(s) -
Aldoshin Sergey M.,
Antipin Igor S.,
Kniazeva Mariya V.,
Korchagin Denis V.,
Morgunov Roman B.,
Ovsyannikov Alexander S.,
Palii Andrey V.,
Sanitaliya A.,
Shilov Gennadiy V.,
Solovieva Svetlana E.
Publication year - 2020
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.201900155
Subject(s) - chemistry , antiferromagnetism , crystallography , ferromagnetism , paramagnetism , metamagnetism , transition metal , spin (aerodynamics) , crystal structure , condensed matter physics , magnetic field , magnetization , catalysis , physics , biochemistry , quantum mechanics , thermodynamics
A new tert‐buthylthiacalix[4]arene‐based tetranuclear 3d‐4f metal complex with the Mn 2 Tb 2 core has been synthesized and its molecular and crystal structures have been studied by X‐ray diffraction. The complex geometry is similar to that of the earlier synthesized tert‐buthylthiacalix[4]arene‐based M 2 Ln 2 complexes with M=Mn(II), Co(II), and Ln=Gd, Pr, Eu, but unlike those systems, it exhibits intricated cooperative low‐temperature magnetic properties arising from the presence of intercluster interactions. At T<8.5 K the complex shows weak spin‐canted ferromagnetism and field induced metamagnetic phase transition. The paramagnetic behavior observed at temperatures higher than 8.5 K is similar to that previously reported for the Mn 2 Gd 2 complex, this being indicative of the existence of competitive ferro‐ and antiferromagnetic intracluster interactions.