A series of novel chiral lanthanide coordination polymers with channels constructed from 16Ln-based cage-like building units

Chiral Lanthanide Metal-Organic Frameworks

“…Yuan et al [40] successfully synthesized seven isostructural coordination polymers by using achiral ligand H 3 tda under hydrothermal conditions, [Ln(tda) (H 2 O)] n ·2nH 2 O, (Ln ¼ La, Ce, Pr, Nd, Sm, Eu, Gd). Single-crystal X-ray diffraction analyses reveal that compounds crystallize in the high-symmetry hexagonal space group P3 2 21 and possess a three-dimensional chiral coordination framework, which is an extremely successful strategy to obtain chirality of MOFs and transmit chiral information via the construction of helix.…”

“…The most straightforward and effective method is to choose enantiopure organic ligand with rigid structure to bridge metal ions or SBUs, by which lanthanide center as inorganic SBU with absolute configuration can be achieved and the resulting framework would be homochiral [39][40][41][42]. 2.…”

Synthesis and characterization of two novel coordination polymers based on the rigid 1H-1,2,3-triazole-4,5-dicarboxylic acid ligand

“…1H-1,2,3-triazole-4,5-dicarboxylic acid (H 3 TDA) is a multidentate N-and O-donor ligand that can be deprotonated to generate H 2 TDA  , HTDA 2 , and TDA 3 with versatile metal-binding and hydrogen-bonding capabilities. Complexes of the H 3 TDA ligand have been reported with alkali metal ions, transition metal ions and lanthanide metal ions [14][15][16][17][18][19][20][21]. As a continuation of our ongoing interest in the construction of novel coordination polymers with interesting structural features, we report herein the syntheses and crystal structures of two novel coordination polymers [Pb(HTDA)] n (1) and [Co 5 (TDA) 2 (H 2 TDA) 2 (H 2 O) 8 ] n (2).…”

Crystal structure and characterization of two cadmium(II) coordination polymers with a multidentate N-donor tecton 3-(pyridin-4-yl)-5-(pyrazin-2-yl)-1H-1,2,4-triazole

“…Multidentate N-donor or O-donor ligands have been employed extensively in construction of extended structures. Among various ligands, imidazoles [6][7][8][9], polycarboxylates [10][11][12][13], and their derivatives have attracted attention for constructing a series of metal organic materials. Triazole and its derivatives are potential multitopic ligands in construction of coordination complexes.…”