Athree-dimensional Sm-MOF materials were synthesized by hydrothermal method using 1,4-bis(pyrazol-1-yl)terephthalic acid(H₂L)as ligand and lanthanide metal Smions.A variety of amino acids such as N-acetyl-DL-tryptophan in aqueous solution were detected.The detection limit of N-acetyl-DL-tryptophan was 0.55 μmol/L,showing good sensitivity,high selectivity and recyclability.The LUMO and HOMO of the ligand and N-acetyl-DL-tryptophan were simulated,and the detection mechanism was studied and analyzed.It was speculated that the main reason for the fluorescence enhancement of Sm-MOF by N-acetyl-DL-tryptophan was the donor-acceptor electron transfer mechanism.Overall,the Sm-MOF has broad application and development prospects as a fluorescent detection material.

Synthesis and Structure of Ba(Ⅱ)and Zn(Ⅱ)Coordination Polymers Based on 1,3-Bis(carboxymethyl)imidazolium [J]. Journal of Shenyang University of Chemical Technology, 2024, 38(1): 1-6.