Novel vic-dioxime ligand containing calix[4]pyrrole moiety: synthesis, characterization, anion binding studies and complexation with Ni(II)

Synthesis and crystal structure of Ni, Cu complexes of 5-methyl-10,10,15,15,20,20-hexaethylcalix[4]pyrrole mono-Schiff bases

“…Efforts to improve the anion affinity of calixpyrrole 14 and to enhance its selectivity have led to a variety of chemical 15 modifications of calixpyrrole skeleton and substituents. Thus, a 16 vast range of functionalized calixpyrroles derivatives equipped 17 with various chromogenic, fluorogenic, or redoxactive units as well 18 as others are successfully developed [5][6][7][8][9][10][11][12][13][14]. On the other hand, 19 calixpyrrole core are widely used as tetraanionic N4-ligands for 20 metal coordination chemistry [15][16][17][18][19][20][21].…”