Dual Photoreactivity of a New Rh₂(II,II) Complex for Biological Applications.

ABSTRACT: A new Rh₂(II,II) complex containing one dppn (benzo[i]dipyrido[3,2-a:2,3-c]phenazine) ligand with an extended π-system, cis-H,H-[Rh₂(OCCH₃NH)₂(dppn)(CH₃CN)₂]²⁺ (2), was synthesized and characterized. The dppn ligand, which serves as a DNA base pair intercalator, chelates to a single Rh center and is positioned trans to the amidato N atoms of the bridging acetamide ligand. This ligand also possesses a low-lying dppn-centered ³ππ* state that is advantageous for the sensitization of singlet oxygen (¹O₂), which complex 2 produced with a quantum yield, Φ _¹O2⁴⁶⁰, of 0.22(7) with 460 nm excitation

SUBMITTER: Akhimie RN 

PROVIDER: S-EPMC6049087 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature