Abstract
Two layered-pillared Cd(II)-containing coordination polymers, [Cd2(BTC)(bpdh)2(HCOO)(H2O)·H2O]n (1) and [CdNa(BTC)(bpdh)(H2O)2·H2O]n (2) (H3BTC = 1,3,5-benzenetricarboxylic acid, bpdh = 2,5-bis-(3-pyrazinyl)-3,4-diaza-2,4-hexadiene) have been controlly synthesized under hydrothermal condition. In both complexes, the BTC3− ligands bridge metal ions to build 2D layers, and the linear bpdh ligands link the layers into 3D motifs. Compared with our earlier reports, it showed that the Cd2+ ion with larger radius can effectively reduce the steric overcrowding, which is very favorable for the construction of layered-pillared structure. Furthermore, the solid state luminescent properties of 1 and 2 have also been investigated.
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