Tricarbonyl triazolato Re(i) compounds of pyridylbenzimidazole ligands: spectroscopic and antimicrobial activity evaluation

Abstract

The antimicrobial activity and solvatochromism properties of mono- and binuclear tricarbonyl triazolato Re(i) complexes of pyridylbenzimidazole, formed by catalyst-free [3+2] cycloaddition reaction, were examined.

Evaluation of cytotoxic properties of two fluorescent fac-Re(CO)3 complexes bearing an N,N-bidentate benzimidazole coligand

“…The term for this is solvatochromism. 5,47 The overall impact of the solvent on a particular species may also be inuenced by other elements, such as interactions via hydrogen bonds. Compared to p-p* transitions, charge transfer bands (LLCT, MLCT) are more sensitive to solvent polarity.…”

“…3 The nature of the bidentate ligand and/or the auxiliary "spectator" ligand affects the photophysical features of this class of Re(I) compounds. [4][5][6] Re(I) complexes can regularly be followed intracellularly due to their luminous characteristics, allowing researchers to link their distribution inside cells and tissues to their method of action. [7][8][9] A few Re(I) complexes are reportedly promising therapeutics for the photodynamic treatment and/or photoactivated chemotherapy.…”