ИСТИНА

Azolecarboxylic acids are a unique class of ligands that usually form with REE cations polymeric complexes with MOF porous structure [1].The structure of various pyrazole-[2] and 1,2,3-triazolecarboxylic acids [3,4] promotes the formation of several metallocycles, which makes the formation of polymeric complexes preferable instead of molecular compounds. The aromatic nature of the ligands, together with the minimization of the number of CH bonds,makes these ligands promising "antennas" for the manifestation of the full potential of the photoluminescent properties of lanthanides. These features make REE azole carboxylates promising luminescent sensor materials for the detection of water [4] and metal cations. This report is focused on an overview of our ongoing inverstigations devoted to the synthesis new MOF’s based on azolecarboxylic acid ligands, and their use for detection on different analytes.