Popis: |
Two new 3D 3d–4f heterometallic microporous metal-organic frameworks, named, [Ln 2 Ni(Himdc) 2 (aip) 2 (H 2 O) 4 ]·6H 2 O [Ln = Nd ( 1 ), La ( 2 ); H 3 imdc = imidazole-4,5-dicarboxy acid; aip = 5-aminoisophthalic acid], have been successfully synthesized through the reaction of Ln 2 O 3 , NiSO 4 ·6H 2 O, H 3 imdc, aip and H 2 O. Compounds 1 and 2 are isomorphic, displaying rare interesting 3D heterometallic networks with (7, 8)-connected topology based on the linkages of 2D layers and 1D zigzag chains. In addition, the magnetic properties of the two compounds have been investigated. |