Exploring the synthesis, structure, and properties of two 2D transition metal polymers based on 4, 4'-bistriazole 3, 3'-biphenyldicarboxylic acid.

• Two coordination polymers {[M(BTBPA(H 2 O)2]·0·5H 2 O}n were obtained solvothermally. • The structures of 1–2 are both as 4,4-linked two-dimensional layers. • Zn–1 exhibits recognition abilities to antibiotics (PCL, NFT and NFZ) with high sensitivity. • The static magnetic performance of Mn–2 was investigated. Two coordination polymers {[Zn(BTBPA)(H 2 O) 2 ]·0·5H 2 O} n (Zn-1), and {[Mn(BTBPA)(H 2 O) 2 ]·0·5H 2 O} n (Mn-2) were synthesized solvothermally by the combination of organic linker 4,4′-bistriazole 3,3′-biphenyldicarboxylic acid (H 2 BTBPA) and Zn(NO 3) 2 ·6H 2 O or MnCl 2 ·4H 2 O. Both of the polymers 1–2 are as 4,4-linked two-dimensional layered structures, which constitute into three dimensional supramolecular frameworks with porous channels via O − H ⋅⋅⋅O hydrogen bonds. Zn-1 exhibits recognition abilities to antibiotics (PCL, NFT and NFZ) with high sensitivity via luminescence "turn-off" mechanism. In addition, the static magnetic performance of Mn-2 was investigated. Two coordination polymers {[Zn(BTBPA)(H 2 O) 2 ]·0·5H 2 O} n (Zn-1), and {[Mn(BTBPA)(H 2 O) 2 ]·0·5H 2 O} n (Mn-2) have been successfully obtained based on a multi-dentate organic ligand 4,4′-bistriazole 3,3′-biphenyldicarboxylic acid. Both of the two complexes exhibit as 4,4-linked two-dimensional layered structures, which constitute into three dimensional supramolecular frameworks via O − H ⋅⋅⋅O hydrogen bonds. Zn-1 exhibits recognition abilities to antibiotics (PCL, NFT and NFZ) with high sensitivity. In addition, the static magnetic performance of Mn-2 was investigated. [Display omitted] [ABSTRACT FROM AUTHOR]