Issue 54, 2021

Distinct photodynamics of κ-N and κ-C pseudoisomeric iron(ii) complexes


Two closely related FeII complexes with 2,6-bis(1-ethyl-1H-1,2,3-triazol-4yl)pyridine and 2,6-bis(1,2,3-triazol-5-ylidene)pyridine ligands are presented to gain new insights into the photophysics of bis(tridentate) iron(II) complexes. The [Fe(N^N^N)2]2+ pseudoisomer sensitizes singlet oxygen through a MC state with nanosecond lifetime after MLCT excitation, while the bis(tridentate) [Fe(C^N^C)2]2+ pseudoisomer possesses a similar 3MLCT lifetime as the tris(bidentate) [Fe(C^C)2(N^N)]2+ complexes with four mesoionic carbenes.

Graphical abstract: Distinct photodynamics of κ-N and κ-C pseudoisomeric iron(ii) complexes

Supplementary files

Article information

Article type
31 Mar 2021
20 May 2021
First published
14 Jun 2021
This article is Open Access
Creative Commons BY license

Chem. Commun., 2021,57, 6640-6643

Distinct photodynamics of κ-N and κ-C pseudoisomeric iron(II) complexes

P. Dierks, A. Kruse, O. S. Bokareva, M. J. Al-Marri, J. Kalmbach, M. Baltrun, A. Neuba, R. Schoch, S. Hohloch, K. Heinze, M. Seitz, O. Kühn, S. Lochbrunner and M. Bauer, Chem. Commun., 2021, 57, 6640 DOI: 10.1039/D1CC01716K

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