The structural evolution and tunable photoluminescence of f-element bearing coordination polymers of the 2,4,6-tri-α-pyridyl-1,3,5-triazine ligand

Abstract

An attempt at expanding the family of f-element bearing TPTZ coordination polymers has resulted in fifteen new complexes with topologies that evolved along the periodic table and tunable photoluminescence properties.

s‐Triazine pincer ligands: Synthesis of their metal complexes, coordination behavior, and applications

“…They reported the synthesis and fluorescence investigations of three different phases of lanthanide complexes 125-127 (first phase include: Ln = Pr to Nd; second phase: Ln = Pr to Er, except Pm; and the last phase include Ln = Tm to Lu) via solvothermal synthesis and also the novel uranyl TPTZ complex 128 (Scheme 51). [116] The photoluminescence results showed that the homoleptic Eu(III), Tb(III), and U(III) exhibited luminescence and when Eu(III) doped Tb(III) in a single complex giving rise a versatile photoluminescent color.…”

“…[115] The exploration of the f-elements with the imine chelators (N-donor ligands) have experienced increasing attention due to remarkable applications in different fields such as catalysis, magnetism, separation, and photoluminescence. Notable success have been witnessed by Yue et al, in 2019. They reported the synthesis and fluorescence investigations of three different phases of lanthanide complexes 125-127 (first phase include: Ln = Pr to Nd; second phase: Ln = Pr to Er, except Pm; and the last phase include Ln = Tm to Lu) via solvothermal synthesis and also the novel uranyl TPTZ complex 128 (Scheme 51).…”

New cyanido-bridged iron(ii) spin crossover coordination polymers with an unusual ladder-like topology: an alternative to Hofmann clathrates

“…The tptz molecule was extensively exploited as a ligand for lanthanide or transition metal ions due to its various coordinating modes acting as a monoor bis-tridentate or/and bidentate ligand. [37][38][39][40][41] These d/f frameworks, with different topologies, showed interesting magnetic, chiral and luminescence properties. [37][38][39][40][41] Moreover, complex cations with tptz and {M(tptz)} n+ were also used as building blocks to assemble, in combination with cyanido-based metalloligands, cyanido-bridged d-d′ or d-f heterometallic complexes, such as [Mn II (tptz)(H 2 O)(NO 3 )(µ-NC)Cr III (ampy)…”

Pyrrolidine-Derived Phenanthroline Diamides: An Influence of Fluorine Atoms on the Coordination of Lu(III) and Some Other f-Elements and Their Solvent Extraction

“…This effect, called “lanthanide contraction”, has been well studied and documented [ 5 , 6 , 7 , 8 , 9 ]. A variety of ligands have been shown to form complexes with lanthanides and the importance of lanthanide contraction on the structure of the formed complexes has been demonstrated [ 10 , 11 , 12 ]. Recently, we observed the effect of lanthanide contraction on tetrabutyl 1,10-phenanthroline-2,9-diamide [ 13 ], which acts as an N,N,O,O-tetradentate ligand.…”