Redox-Tagged Carbon Monoxide-Releasing Molecules (CORMs) : Ferrocene-Containing [Mn(C^N)(CO)4] Complexes as a Promising New CORM Class

Aucott, Benjamin J. and Ward, Jonathan S. and Andrew, Samuel G. and Milani, Jessica and Whitwood, Adrian C. and Lynam, Jason M. and Parkin, Alison and Fairlamb, Ian J. S. (2017) Redox-Tagged Carbon Monoxide-Releasing Molecules (CORMs) : Ferrocene-Containing [Mn(C^N)(CO)4] Complexes as a Promising New CORM Class. Inorganic Chemistry, 56 (9). pp. 5431-5440. ISSN 0020-1669

Full text not available from this repository.

Abstract

This study describes the synthesis and characterization of a new class of ferrocene-containing carbon monoxide-releasing molecules (CORMs, 1–3). The ferrocenyl group is both a recognized therapeutically viable coligand and a handle for informative infrared spectroelectrochemistry. Deoxymyoglobin CO-release assays and in situ infrared spectroscopy confirm compounds 2 and 3 as photoCORMs and 1 as a thermal CORM, attributed to the increased sensitivity of the Mn–ferrocenyl bond to protonation in 1. Electrochemical and infrared spectroelectrochemical experiments confirm a single reversible redox couple associated with the ferrocenyl moiety with the Mn tetracarbonyl center showing no redox activity up to +590 mV vs Fc/Fc+, though no concomitant CO release was observed in association with the redox activity. The effects of linker length on communication between the Fe and Mn centers suggest that the incorporation of redox-active ligands into CORMs focuses on the first coordination sphere of the CORM. Redox-tagged CORMs could prove to be a useful mechanistic probe; our findings could be developed to use redox changes to trigger CO release.

Item Type:
Journal Article
Journal or Publication Title:
Inorganic Chemistry
Uncontrolled Keywords:
Research Output Funding/yes_externally_funded
Subjects:
?? yes - externally fundedphysical and theoretical chemistryinorganic chemistry ??
ID Code:
193713
Deposited By:
Deposited On:
18 May 2023 10:45
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 23:49