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Synthesis and Characterization of Bidentate Isonitrile Iron Complexes

preprint
submitted on 21.01.2021, 16:05 and posted on 22.01.2021, 09:23 by Marion Till, John A. Kelly, Christoph G. P. Ziegler, Robert Wolf, Tianao Guo, Mark R. Ringenberg, Eugen Lutsker, Oliver Reiser
Divalent iron complexes trans-[FeBr2(BINC)2], [Cp*FeCl(BINC)] (Cp* = Me5C5) and [FeBr2(CNAr3NC)2] with chelat-ing bis(isonitrile) ligands BINC (bis(2-isocyanophenyl)phenylphosphonate) and CNAr3NC (2,2’’-diisocyano-3,5,3’’,5’’tetramethyl-1,1’:3’,1’’-terphenyl) have been prepared and characterized. Their subsequent reduction yields di- and trinuclear compounds [Fe3(BINC)6], [Cp*Fe(BINC)]2, [Fe(CNAr3NC)2]2 and [K(Et2O)]2[Fe(CNAr3NC)2]2. The molecular structures of all new species were determined by X-ray crystallography. The molecular structures are compared to related iron carbonyl complexes. The complexes were further characterized by NMR and IR spectroscopy, and the electrochemical properties of selected compounds were analyzed by UV-Vis-NIR spectroelectrochemistry.

Funding

European Research Council (ERC CoG 772299)

History

Email Address of Submitting Author

robert.wolf@ur.de

Institution

Unversity of Regensburg, Institute of Inorganic chemistry

Country

Germany

ORCID For Submitting Author

0000-0003-4066-6483

Declaration of Conflict of Interest

The authors declare no competing financial interest.

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