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Vol. 38 No. 1 (2026): Vol 38 Issue 1, 2026

Copyright (c) 2025 Kingsley Michieka

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Cationic Iron Half-Sandwich Complexes of Aminopyridines: Synthesis and Characterisation

https://doi.org/10.14233/ajchem.2026.35243
Kingsley Michieka
Department of Chemistry, Kenyatta University, Nairobi, Kenya
https://orcid.org/0009-0008-8686-0525
Evans Changamu
Department of Chemistry, Kenyatta University, Nairobi, Kenya
https://orcid.org/0000-0001-6021-8050
Katana Chengo
Department of Chemistry, Kenyatta University, Nairobi, Kenya
https://orcid.org/0000-0002-7792-416X

Corresponding Author(s) : Kingsley Michieka

20873.2020@students.ku.ac.ke

Asian Journal of Chemistry, Vol. 38 No. 1 (2026): Vol 38 Issue 1, 2026

Abstract

The reaction of [(η5-C5H5)Fe(CO)2]+, with the aminopyridine ligands lead to formation of cationic organometallic complexes of the general formula [(η5-C5H5)Fe(CO)2L]+ (where L = 2-Apy, 3-Apy, 4-Apy and Apy = aminopyridine). These ligands have the ability to coordinate to a metal center in monodentate fashion via the pyridine ring or amine nitrogen atoms, can form chelate complexes with one metal center or bridge two metal ions. Spectroscopic data (FTIR, 1H and 13C NMR and elemental analysis) collected for the five metal complexes is consistent with monodenate coordination mode through the pyridyl nitrogen in complexes 2, 3 and 4 atoms and amine nitrogen in complexes 1 and 4.

Keywords

Iron complexes Half-sandwich Aminopyridines Synthesis
(1)
Michieka, K.; Changamu, E.; Chengo, K. Cationic Iron Half-Sandwich Complexes of Aminopyridines: Synthesis and Characterisation. ajc 2025, 38, 243-248.
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