Tris(pentafluorophenyl)corrolatoindium(III) – A Long-awaited Metallocorrole: Synthesis and Characterization

Year 2024, , 803 - 812, 15.05.2024

Ali Tuna , Pekka Peljo , Roberto Paolesse , Günther Knör

https://doi.org/10.18596/jotcsa.1425456

Abstract

The first attempts at the synthesis of an indium corrole compound were synthesized in the late 80s, but it has not been possible to obtain and characterize such complex completely, and the indium part of metallocorrole’s periodic table remained unfilled. In this work, an efficient insertion of indium into the 5,10,15-tris(pentafluorophenyl)corrole was achieved. The obtained 5,10,15-tris(pentafluorophenyl)corrolato indium(III) derivatives has been successfully characterized by relevant analytical techniques and some photophysical and electrochemical features were studied and investigated for the first time. As a novel research, 19F-19F COSY NMR technique was employed for the first time in corrole chemistry and the obtained results were further compared to the geometry-optimized molecular structure via density functional theory (DFT) calculations.

Keywords

corrole, indium, metallocorrole, NMR, 19F-19F COSY

Supporting Institution

Academy of Finland

Project Number

Funding Decision Number 334828

Thanks

We would like to thank to the Academy of Finland (Suomen Akatemia, Funding Decision Number 334828), University of Turku (UTU) and the École Polytechnique Fédérale de Lausanne (EPFL) to support our PhD student, Ali Tuna for his projects. We would also like to thank Dr. Jeremy Weaver, University of Wisconsin – Madison, USA) who carried out his PhD thesis on the investigation of indium corrole formation and discussions, and NMR specialists Aurélien Bornet (EPFL, Switzerland) and Jani Rahkila (Bruker, Finland) for establishing 19F-19F COSY NMR technique for detailed analytical characterization, and Dr. Ian Pompermayer Machado (UTU, Finland) for fluorescence spectroscopy measurements.

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