Show simple item record

dc.contributor.authorHenke, Wade C.
dc.contributor.authorHopkins, Julie A.
dc.contributor.authorAnderson, Micah L.
dc.contributor.authorStiel, Jonah P.
dc.contributor.authorDay, Victor W.
dc.contributor.authorBlakemore, James D.
dc.identifier.citationHenke, W. C., Hopkins, J. A., Anderson, M. L., Stiel, J. P., Day, V. W., & Blakemore, J. D. (2020). 4,5-Diazafluorene and 9,9'-Dimethyl-4,5-Diazafluorene as Ligands Supporting Redox-Active Mn and Ru Complexes. Molecules (Basel, Switzerland), 25(14), 3189.
dc.descriptionThis work is licensed under a Creative Commons Attribution 4.0 International License.en_US
dc.description.abstract4,5-diazafluorene (daf) and 9,9’-dimethyl-4,5-diazafluorene (Me2daf) are structurally similar to the important ligand 2,2’-bipyridine (bpy), but significantly less is known about the redox and spectroscopic properties of metal complexes containing Me2daf as a ligand than those containing bpy. New complexes Mn(CO)3Br(daf) (2), Mn(CO)3Br(Me2daf) (3), and [Ru(Me2daf)3](PF6)2 (5) have been prepared and fully characterized to understand the influence of the Me2daf framework on their chemical and electrochemical properties. Structural data for 2, 3, and 5 from single-crystal X-ray diffraction analysis reveal a distinctive widening of the daf and Me2daf chelate angles in comparison to the analogous Mn(CO)3(bpy)Br (1) and [Ru(bpy)3]2+ (4) complexes. Electronic absorption data for these complexes confirm the electronic similarity of daf, Me2daf, and bpy, as spectra are dominated in each case by metal-to-ligand charge transfer bands in the visible region. However, the electrochemical properties of 2, 3, and 5 reveal that the redox-active Me2daf framework in 3 and 5 undergoes reduction at a slightly more negative potential than that of bpy in 1 and 4. Taken together, the results indicate that Me2daf could be useful for preparation of a variety of new redox-active compounds, as it retains the useful redox-active nature of bpy but lacks the acidic, benzylic C–H bonds that can induce secondary reactivity in complexes bearing daf.en_US
dc.description.sponsorshipUS National Science Foundation (OIA-1833087)en_US
dc.description.sponsorshipNSF REU Program in Chemistry at the University of Kansas (CHE-1560279)en_US
dc.description.sponsorshipNIH T32 GM008545-25en_US
dc.description.sponsorshipNIH S10OD016360en_US
dc.description.sponsorshipNIH S10RR024664en_US
dc.rights© 2020 by the authors. Licensee MDPI, Basel, Switzerland.en_US
dc.subjectManganese tricarbonylen_US
dc.title4,5-Diazafluorene and 9,9’-Dimethyl-4,5-Diazafluorene as Ligands Supporting Redox-Active Mn and Ru Complexesen_US
kusw.kuauthorHenke, Wade C.
kusw.kuauthorHopkins, Julie A.
kusw.kuauthorAnderson, Micah L.
kusw.kuauthorStiel, Jonah P.
kusw.kuauthorDay, Victor W.
kusw.kuauthorBlakemore, James D.
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US

Files in this item


This item appears in the following Collection(s)

Show simple item record

© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Except where otherwise noted, this item's license is described as: © 2020 by the authors. Licensee MDPI, Basel, Switzerland.