CE30 - Physique de la matière condensée et de la matière diluée

Structural dynamics of photoswitchable solids – Strudyn

Submission summary

The objective of the project is a detailed study of the photoinduced isomerization of ruthenium nitrosyl complexes in the solid state in order to understand the underlying mechanism, explore the potential energy surface and identify all metastable states and their properties, and establish the principles allowing for selectively driving the system towards one or the other structural configuration. The original feature of the project is the determination of the structure of possible intermediate states during photoisomerisation by time-resolved X-ray diffraction on the millisecond time scale. For this purpose, the two partners will join their complementary expertise. The Russian partner brings in the knowledge about the synthesis and characterisation of ruthenium nitrosyl complexes with the trans-coordinate NO-Ru-F. These complexes are particularly suited for the study, since they have the highest thermal stability of linkage isomers, which makes it possible to study isomerization reactions in a wide temperature range. The French partner brings in its expertise in photocrystallography and especially the unique laboratory X-ray diffractometer allowing for collecting diffraction data after pulsed LASER excitation with millisecond time resolution.

Project coordination

Dominik Schaniel (Cristallographie, résonance magnétique et modélisations)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.

Partner

CRM2 Cristallographie, résonance magnétique et modélisations
NIIC Nikolaev Institute of Inorganic Chemistry / Laboratory of rare platinum metal chemistry

Help of the ANR 347,520 euros
Beginning and duration of the scientific project: January 2022 - 36 Months

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