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Design of phenanthrimidazole‐pendant cyclam and cyclen macrocyclic complex ligands as inorganic hosts: Photophysics, electrochemistry, and bimetallic complex formation
Author(s) -
Yilmaz Obali Aslihan
Publication year - 2020
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.3793
Subject(s) - chemistry , cyclam , cyclen , bimetallic strip , ruthenium , macrocyclic ligand , ligand (biochemistry) , electrochemistry , nickel , metal , metal ions in aqueous solution , aqueous solution , molecule , phenanthroline , inorganic chemistry , stereochemistry , medicinal chemistry , organic chemistry , catalysis , electrode , biochemistry , receptor
Novel ruthenium(II)bpy complexes of the phenanthrimidazole‐pendant cyclen and cyclam macrocyclic ligands were synthesized as inorganic host molecules. Inorganic host design was planned as a “complex ligand” form because of its tetraaza macrocyclic unit, which has the ability to coordinate to the metals. Photophysical properties and metal selectivity of inorganic hosts RuL1A and RuL2 complex ligands were investigated by UV‐vis and fluorescence spectroscopy in aqueous medium. Among Ag(I), Li(I), Na(I), K(I), Cd(II), Cr(II), Fe(II), Hg(II), Ni(II), Pb(II), Zn(II), Cu(II), Mn(III), and Co(III) metal ions, Fe(II) addition causes spectral changes for both RuL1A and RuL2 complex ligands. Electrochemical studies were performed for RuL1B and also for cis‐[Ru(bpy) 2 Cl 2 ] . Bimetallic complexes [[Ru(bpy) 2 ([Ni(2‐(4‐((1,4,8,11‐tetraazacyclotetradecan‐1‐yl)methyl)phenyl)‐1 H ‐imidazo[4,5‐ f ][1,10]phenanthroline])](ClO 4 ) 4 , RuL1‐NiA and [Ru(bpy) 2 ([Ni(2‐(4‐((1,4,8,11‐tetraazacyclotetradecan‐1‐yl)methyl)phenyl)‐1 H ‐imidazo[4,5‐ f ][1,10]phenanthroline])]Cl 4 , RuL1‐NiB solid complexes were also obtained by the reaction of the RuL1B and Nickel(II).