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An Unusual Ln III ‐Based Metal‐Organic Framework with Dinuclear Nodes Exhibiting Single‐Molecular Magnet Behavior
Author(s) -
Zhang XueJing,
Su FangZhe,
Guo WanYing,
Sañudo E. Carolina,
Liu ChunSen
Publication year - 2018
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201801183
Subject(s) - carboxylate , chemistry , metal organic framework , crystallography , magnetic relaxation , single molecule magnet , lanthanide , magnetization , magnet , metal , molecule , molecular magnets , relaxation (psychology) , group 2 organometallic chemistry , stereochemistry , ion , organic chemistry , magnetic field , physics , adsorption , quantum mechanics , social psychology , psychology
Three Ln III ‐based metal‐organic frameworks (MOFs), namely [(Me 2 NH 2 )[Ln(OBA) 2 ](Hatz)(H 2 O) 1.5 ] n [Ln = Dy ( 1 ), Er ( 2 ), Ho ( 3 ); H 2 OBA = 4, 4'‐oxybis(benzoate) acid, Hatz = 3‐amino‐1,2,4‐triazole], were synthesized with Hatz as the template. In the structure of the three MOFs, the dinuclear Ln III nodes are bridged by four oxygen atoms from syn, syn ‐carboxylate groups and this model result in a long distance between Dy–Dy, about 4.143(7) Å. In addition, the terminal carboxylate groups force a sandwich‐like coordination environment. Slow relaxation of the magnetization can be observed for 1 , indicative of a single‐molecule magnet (SMM) behavior.