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Solvothermal reactions of 3,5-dimethyl-2,6-bis(3-(pyrid-2-yl)-1,2,4-triazolyl) pyridine (L), 1,4-benzendicarboxylic acid (H2bdc), and transitional metal cations of MII (M = Mn, Co, Cd) in the presence of oxalic acid (H2ox) afford three novel supramolecular polymers (CPs), namely, {[M2(ox)(L)2][bdc][M2(Hox)2(OH)2(H2O)4].3H2O}n (M=Mn for 1, Co for 2, Cd for 3). Single-crystal X-ray diffraction analysis reveals that complexes 1-3 are isostructural and the 3D supramolecular structure was connected through non-covalent interactions. With the help of H2ox, the L ligands cheated with center atoms forming a butterfly [M2(ox)(L)2]2+ building block. The bdc2- ligand linked with the unprecedented [M2(Hox)2(OH)2(H2O)4] units through strong O-H…O hydrogen bonds forming a zigzag chain, which are further connected through π…π interactions between L and bdc2- ligands to form a 3D supramolecular structure. Moreover, elemental analyses, IR, thermogravimetric, PXRD and luminescence have been investigated.
Solvothermal reactions of 3,5-dimethyl-2,6-bis (3- (pyrid-2-yl) -1,2,4- triazolyl) pyridine (L), 1,4-benzendicarboxylic acid (H2bdc), and transitional Metal cations of MII (M = Mn, Co, Cd) in the presence of oxalic acid (H2ox) afford three novel supramolecular polymers (CPs), that of {[M2 (ox) (L) 2] [bdc] Hox) 2 (OH) 2 (H2O) 4] .3H2O} n (M = Mn for 1, Co for 2, Cd for 3). Single-crystal X-ray diffraction analysis reveals that complexes 1-3 are isostructural and the 3D supramolecular structure was connected through non-covalent interactions. With the help of H2ox, the L ligands cheated with center atoms forming a butterfly [M2 (ox) (L) 2] 2+ building block. The bdc2-ligand linked with the unprecedented [H2 (Hox) 2 (OH) 2 (H2O) 4] units through strong OH ... O hydrogen bonds forming a zigzag chain, which are further connected through π ... π interactions between L and bdc2- ligands to form a 3D supramolecular structure. Moreover, elemental analyzes, IR, thermogravimetric, PXRD and luminescence have been invest igated.