Abstract: A novel 3D coordination polymer has been solvothermally synthesized using enantionpure ligand (R)-4-(1-carboxyethoxy)benzoic acid ((R)-H₂CBA) or (S)-4-(1-carboxyethoxy) benzoic acid ((S)-H₂CBA) to react with auxiliary N-donor ligand 1, 3, 5-tri (1H-imidazol-1-yl) benzene (TIB) and Cd(Ⅱ), namely, Cd(CBA)(TIB)·xGuest ( 1 , CCDC: 1896008). Crystallographic analysis indicates 1 is an achiral complex for some disordered atoms in CBA²⁻ ligand. In the complex 1 , the deprotonated CBA²⁻ ligands link the Cd centers to form a unique right-handed helical chain along the c-axis. Meanwhile, another left-handed helical chain based on Cd(Ⅱ) and TIB ligands is also found along the b-axis. As for complex 1 , an achiral framework was constructed by two kinds of absolute helical chains, which is a very rare phenomenon in the field of CPs. Furthermore, the IR, PXRD, thermostability and photoluminescent properties were also studied.