Work

Light-mediated CO release from a tricarbonyl manganese( i ) complex with a bidentate quinoxaline ligand

Year: 2025

Type: article

Abstract: L] that releases CO upon exposure to visible light (468-525 nm). Different structural elucidation methods, including X-ray crystallography, were used to thoroughly characterize the structure of the organometallic compound. Prior to recording the profiles of dark-stability and photolysis in various organic solvents, the complex's solvatochromism features were examined experimentally and through quantum chemical calculations. As solutions become less polar, the lowest energy transition in DMSO, which is observed at 487 nm, is red-shifted, which could be explained by negative solvatochromism. Illuminating the pre-incubated solutions of the complex in organic solvents at 525 nm, with or without calf-thymus DNA, hen white egg lysozyme, or histidine, yields a two-step process perhaps associated with the sequential release of 3 CO molecules. In comparison, the principal factor influencing the CO release kinetics of the complex is the medium and the percentage of DMSO for example, with minimal interference from the biomolecules.

Source: RSC Advances

DOI: 10.1039/d5ra03678j

Authors: Rabaa M. Khaled, Krzysztof Radacki, Gamal A. E. Mostafa, Essam A. Ali, Ola R. Shehab, Ahmed M. Mansour

Institutions: Cairo University, University of Würzburg, King Saud University, United Arab Emirates University

Language: English

Topic: Metal complexes synthesis and properties

Subfield: Oncology

Field: Medicine

Domain: Health Sciences

Open Access status: gold

Estimated APC paid: $1,042

Funders: King Saud University, United Arab Emirates University