Premium
Syntheses, Structures, and Properties of the 3D Lanthanide Organic Frameworks with N‐Heterocyclic Polycarboxylic Acids
Author(s) -
Yang AiHong,
Zhao LiHua,
Qi XueJie,
Lu YiWei
Publication year - 2014
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201400209
Subject(s) - isostructural , lanthanide , chemistry , pyrazine , luminescence , pyridine , ligand (biochemistry) , crystallography , infrared spectroscopy , inorganic chemistry , potassium , ion , medicinal chemistry , crystal structure , stereochemistry , materials science , organic chemistry , biochemistry , receptor , optoelectronics
Four 3D lanthanide organic frameworks from potassium pyrazine‐2, 3, 5, 6‐tetracarboxylate (K 4 pztc) or potassium pyridine‐2, 3, 5, 6‐tetracarboxylate (K 4 pdtc), namely, {[KEu(pztc)(H 2 O) 2 ] · H 2 O} n ( 1 ), {[KTb(pztc)(H 2 O) 2 ] · 1.25H 2 O} n ( 2 ), {[K Ln (pdtc)(H 2 O)] · H 2 O} n [ Ln = Gd ( 3 ), Ho ( 4 )], were synthesized by reaction of the corresponding lanthanide oxides with K 4 pztc or K 4 pdtc in presence of HCl under hydrothermal conditions, and characterized by elemental analysis, TGA, IR and fluorescence spectroscopy as well as X‐ray diffraction. In complexes 1 and 2 , the dodecadentate chelator pztc 4– links four Ln III ions and four K I ions. The coordination mode of the pztc 4– ligand is reported for the first time herein. Complexes 3 and 4 are isostructural with earlier reported Nd, Dy, Er complexes. Moreover, the Eu III and Tb III complexes exhibit the characteristic luminescence.