A new linking ligand with pyridyl-carboxylate terminals and its coordination polymers: Synthesis, structures, and properties of HL, [AgL]∞, {[CdL2](CH3OH)(H2O)}∞, and [MnL2(CH3OH)]∞ {L = (3-py)-CHN-CH2-C6H4-COO}

► A linking ligand {HL = (3-py)-CH,N-CH2-C6H4-COOH} was synthesized. ► A 3-D Ag coordination polymer [AgL]∞. ► A 2-D Cd coordination polymer {[CdL2](CH3OH)(H2O)}∞. ► A 2-D Mn coordination polymer [MnL2(CH3OH)]∞.