Five new three/two-fold interpenetrated coordination polymers, namely, [Cd(mfda)(L1)] (1), [Cd(efda)(L1)] (2), [Zn 2(mfda)2(L2)]·DMF·H2O (3), [Zn2(efda)2(L2)]·(DMF) 0.25, (4) and [Cd2(mfda)2(L2) 2]·DMF·H2O (5) (H2mfda = 9,9-dimethylfluorene-2,7-dicarboxylic acid, H2efda = 9,9-diethylfluorene-2,7-dicarboxylic acid, L1 = Methylene bis(3,5-dimethylpyrazole) and L2 = 1,4-bis(4-pyridyl)-2,3-diaza-1,3- butadiene), have been synthesized under solvent-thermal conditions with mixed ligands. Compounds 1 and 2 are isostructural and possess two-dimensional (6, 3) layered structures containing two kinds of rings. Three equivalent (6, 3) net interpenetrate in a parallel fashion to form an unprecedented mat-like 2D sheet. Compounds 3 and 4 are almost identical in structure and display threefold interpenetrating α-Po net structures. Compound 5 displays a twofold interpenetrated 3D 6-connected net with α-Po topology. The luminescent properties of these compounds have been studied in the solid state at room temperature.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics