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Kolekcje
Inne
Synthesis, crystal structures and magnetic characterization of heterodinuclear CuIIGdIII and CuIITbIII Schiff base complexes.
Autorzy
Rok wydania
2011
Czasopismo
Numer woluminu
378
Strony
288-296
DOI
10.1016/j.ica.2011.09.017
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Preparation, crystal structures and magnetic properties of new heterodinuclear CuIIGdIII (1) and CuIITbIII (2) complexes [CuLn(L)(NO3)2(H2O)3MeOH]NO3·MeOH (where Ln = Gd, Tb) with the hexadentate Schiff-base compartmental ligand N,N′-bis(5-bromo-3-methoxysalicylidene)propylene-1,3-diamine (H2L = C19H20N2O4Br2) (0) have been described. Crystal structure analysis of 1 and 2 revealed that they are isostructural and form discrete dinuclear units with dihedral angle between the O1Cu1O2 and O1Gd1/Tb1O2 planes equal to 2.5(1)° and 2.6(1)°, respectively. The variable-temperature and variable-field magnetic measurements indicate that the metal centers in 1 and 2 are ferromagnetically coupled (J = 7.89 cm−1 for 1). Crystal and molecular structure of the Schiff base ligand (0) has been also reported. The complex formation changes the conformation of Schiff base ligand molecule.
Słowa kluczowe
Heterodinuclear complexes, Schiff-base, crystal structure, magnetic properties
Adres publiczny
https://doi.org/10.1016/j.ica.2011.09.017
Strona internetowa wydawcy
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