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The LCPQ is based at the University of Toulouse. The research at LCPQ covers a large variety of topics dedicated to Theoretical-mostly Quantum- Chemistry and Theoretical Molecular Physics. The LCPQ is member of IRSAMC (The Institute of Research on Complex Atomic and Molecular Systems).

Before 2007 => Look at The Quantum Physics Laboratory HAL-LPQ.

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[hal-02534402] Recent progress in ligand photorelease reaction mechanisms: Theoretical insights focusing on Ru(II) 3MC states

The elucidation of reaction mechanisms taking place in the excited state is a current challenge for experimental and theoretical chemists. Ru(II) complexes have a long history for photophysics, and there is currently an increasing interest in their photochemistry. Ru(II) complexes provide a vast field of exploration, whether for synthetic purposes, to trigger molecular motions or to release biologically active components. The excited states involved, especially those of MLCT and MC character, are key to the rationalization of their photophysical and photochemical properties. This review focuses on the recent progress in the latter field through several case studies: i) the archetypes [Ru(bpy)3]2+ and [Ru(tpy)2]2+ first serve for the validation of the theoretical methods we are using; ii) then the study of photorelease of a monodentate ligand provides us with novel mechanistic hypotheses; iii) one step further, studying the photorelease mechanism of a bidentate ligand provides us with novel 3MC states of peculiar flattened geometry; iv) finally, returning to [Ru(bpy)3]2+ itself, we will show that the existence of these states can be generalized and probably represent a major player in the description of photoreactivity mechanisms, for ruthenium and possibly several other transition metals.

[hal-02971214] Theoretical study of the full photosolvolysis mechanism of [Ru(bpy)3]2+ : providing a general mechanistic road map for the photochemistry of [Ru(N^N)3]2+-type complexes towards both cis and trans photoproducts


[hal-02907956] Dynamical Correction to the Bethe-Salpeter Equation Beyond the Plasmon-Pole Approximation


[hal-02922278] Note: The performance of CIPSI on the ground state electronic energy of benzene


[hal-02962231] Magnetization Density Distribution of Sr2IrO4: Deviation from a Local jeff=1/2 Picture