Ruthenium Picolinate Complex as a Redox Photosensitizer With Wide-Band Absorption.

ABSTRACT: Ruthenium(II) picolinate complex, [Ru(dmb)₂(pic)]⁺ (Ru(pic); dmb = 4,4'-dimethyl-2,2'-bipyridine; Hpic = picolinic acid) was newly synthesized as a potential redox photosensitizer with a wider wavelength range of visible-light absorption compared with [Ru(N^∧N)₃]²⁺ (N^∧N = diimine ligand), which is the most widely used redox photosensitizer. Based on our investigation of its photophysical and electrochemical properties, Ru(pic) was found to display certain advantageous characteristics of wide-band absorption of visible light (λ_abs < 670 nm) and stronger reduction ability in a one-electron reduced state ( E 1 / 2 red = -1.86 V vs. Ag/AgNO₃), which should function favorably in photon-absorp

SUBMITTER: Tamaki Y 

PROVIDER: S-EPMC6527782 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature