Issue 54, 2024

Assembly of a trapped valent CeIII/IV–TCNQ complex through metal–ligand redox cooperativity

Abstract

Complex (Cp3CeIV)2(TCNQ)(CeIIICp3)2 (1) was prepared by reducing neutral TCNQ0 (tetracyanoquinodimethane) with Cp3Ce(THF). Two types of cerium centres with a dianionic TCNQ2− moiety are present in 1, wherein each of the four cyano-groups are bound by a cation. Formation of this trapped-valent organocerium compound 1 is facilitated by metal–ligand redox cooperativity. Characterization of 1 was carried out using structural-, magnetometry-, and IR-spectroscopic analyses. Photophysical studies on this compound reveal CeIII luminescence, and opens up avenues for promising multifunctional, mixed-valent lanthanide materials.

Graphical abstract: Assembly of a trapped valent CeIII/IV–TCNQ complex through metal–ligand redox cooperativity

Supplementary files

Article information

Article type
Communication
Submitted
31 Mar 2024
Accepted
06 Jun 2024
First published
07 Jun 2024
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2024,60, 6909-6912

Assembly of a trapped valent CeIII/IV–TCNQ complex through metal–ligand redox cooperativity

H. Gupta, B. D. Vincenzini, A. M. Bacon and E. J. Schelter, Chem. Commun., 2024, 60, 6909 DOI: 10.1039/D4CC01478B

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