Photophysical Properties and Photobiological Activities of Ruthenium(II) Complexes Bearing π-Expansive Cyclometalating Ligands with Thienyl Groups.

ABSTRACT: A new family of cyclometalated ruthenium(II) complexes [Ru(N^N)₂(C^N)]⁺ derived from the π-extended benzo[h]imidazo[4,5-f]quinolone ligand appended with thienyl groups (n = 1-4, compounds 1-4) was prepared and its members were characterized for their chemical, photophysical, and photobiological properties. The lipophilicities of 1-4, determined as octanol-water partition coefficients (log P_o/w), were positive and increased with the number of thienyl units. The absorption and emission bands of the C^N compounds were red-shifted by up to 200 nm relative to the analogous Ru(II) diimine systems. All of the complexes exhibited dual emission with the intraligand fluorescence (¹IL, C^N-based) shift

SUBMITTER: McCain J 

PROVIDER: S-EPMC6699892 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature