Abstract
The self-assembly of pyrazine-2-carboxylate and oxalate with mixed-metal salts under hydrothermal conditions gave three isostructural 3D 4d-4f coordination polymers, LnAg(ox)(2-pzc) 2 · H 2O [Ln = Eu ( 1); Tb ( 2); Dy ( 3)] [ox = oxalate, 2-pzc = pyrazine-2-carboxylate]. All three structures exhibit same unusual 3D nanoporous heterometallic coordination frameworks constructed by zigzag lanthanide–oxalate chains and Ag(2-pzc) 2 units. Furthermore, the luminescent properties of complexes 1 and 2 are discussed.
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