Syntheses, structures and photoluminescent properties of three d ¹⁰ coordination architectures based on in-situ 1,3,5-triazine derivatives

In the presence of aromatic carboxylic acids, three new d¹⁰ transition metal coordination polymers, [Ag(PAHT)]_n (1), [Ag ₂(HCA)]_n (2) and [Cu₆(CA)₂(H ₂O)]_n (3) (HPAHT=2-phenyl-4-amino-6-hydroxy-1,3,5- triazine, H₃CA=cyanuric acid) have been synthesized based on in-situ 1,3,5-triazine derivatives resulting from 2,4-diamino-6-phenyl-1,3,5-triazine, 2-chloro-4,6-diamino-1,3,5-triazine and melamine under hydrothermal conditions. Complexes 1-3 have been characterized by single-crystal X-ray diffraction, IR spectra, elemental analysis and thermogravimetric analysis (TGA). The compound 1 exhibits a uninodal three-connected 3D network with a rare lig LiGe type topology, which contains right-handed and left-handed [Ag(PAHT)]_n helical chains. For compound 2, the 3D network is comprised of 2D sheet by strongly Ag-O and weakly Ag(I).Ag(I) interactions. In compound 3, it is infrequently observed that dodecanuclear copper(I) units as secondary building units (SBUs) construct 3D network by the ligands CA^3- with a rare uninodal 10-connected bct topology (3¹².4²⁸.5 ⁵). The photoluminescent properties of three compounds have also been measured.