Two new Co(II) complexes, namely [Co₂(L1)(TBIP)·H₂O]_n (1) and [Co₂(L2)(NPTA) H₂O]_n (2) (L1 = 1,4-bis(thiabendazole-1-ylmethyl)benzene, L2 = 1,2-bis(thiabendazole-1-ylmethyl)benzene, H₂TBIP = 5-tert-butylisophthalic acid, and H₂NPTA = 2-nitroterephthalic acid), were hydrothermally synthesized and characterized. 1 shows a 1D double chain, while 2 displays a binuclear structure. 1 and 2 extend into a 2D supramolecular network via C−H···O and O−H···O hydrogen bonding interactions, respectively. 1 and 2 exhibit excellent chemical stability in a wide pH range of 3−12. Furthermore, 1 and 2 are promising di-functional sensors for the detection of Fe³⁺/Cr₂O₇²⁻ (pH = 4) and Ni²⁺/MnO₄⁻ (pH = 9), respectively, with high sensitivity and selectivity and a low limit of detection.

两种新的Co(II)配合物，即[Co ₂ (L1)(TBIP)·H ₂ O] _n (1 ) 和[Co ₂ (L2)(NPTA) H ₂ O] _n ( 2 ) (L1 = 1， 4-双（噻苯达唑-1-基甲基）苯，L2 = 1,2-双（噻苯达唑-1-基甲基）苯，H ₂ TBIP = 5-叔丁基间苯二甲酸，H ₂ NPTA = 2-硝基对苯二甲酸），水热合成和表征。图1显示一维双链，而2显示双核结构。图 1和图2 分别通过 C−H···O 和 O−H···O 氢键相互作用扩展到二维超分子网络中。1和2在 3-12 的宽 pH 范围内表现出优异的化学稳定性。此外，1和2分别是用于检测 Fe ³⁺ /Cr ₂ O ₇ ^2- (pH = 4) 和 Ni ²⁺ /MnO ₄ ^- (pH = 9) 的有前途的双功能传感器，具有高灵敏度和选择性和低检测限。