Projects per year
Abstract
The mononuclear cobalt complex of 3,5-di-tert-butylcathecolate and cyan-pyridine is a very versatile compound that displays valence tautomerism (VT) in the solid-state which is induced by temperature, light and hard X-rays and modulated by solvent in the crystal lattice. Here, we demonstrate the photo-induced valence tautomerism in benzene solvated crystals of such complex with a very high yield of metastable states using 450nm light, and also show evidence of the de-excitation of these photo-induced metastable states using red 660nm light. In our work we use single crystal X-ray diffraction as a probe for the VT and demonstrate the controlled use of hard X-rays using attenuated X-ray beams in order to control the X-ray induced VT interconversion. Our results point to a larger efficiency in the VT interconversion when d-d transitions are excited in comparison with charge transfer promotion.
Original language | English |
---|---|
Article number | ic-2021-006388 |
Pages (from-to) | 8665–8671 |
Journal | Inorganic Chemistry |
Volume | 60 |
Issue number | 12 |
Early online date | 4 Jun 2021 |
DOIs | |
Publication status | Published - 21 Jun 2021 |
Keywords
- Valence tautomerism
- Cobalt o-semiquinone
- Single-crystal
- X-ray diffraction
ASJC Scopus subject areas
- Inorganic Chemistry
- Spectroscopy
Fingerprint
Dive into the research topics of 'Controlled Light and Temperature Induced Valence Tautomerism in a Cobalt-o-Dioxolene Complex'. Together they form a unique fingerprint.Projects
- 2 Finished
-
Understanding and Engineering Function in Switchable Molecular Crystals
Engineering and Physical Sciences Research Council
15/04/13 → 14/04/18
Project: Research council
-
Applying Long-Lived Metastable States in Switchable Functionality via Kinetic Control of Molecular Assembly
Raithby, P., Burrows, A., Carbery, D., Marken, F., Parker, S., Walsh, A. & Wilson, C.
Engineering and Physical Sciences Research Council
1/11/12 → 30/04/18
Project: Research council