Time-resolved relaxation dynamics of near-infrared excited electronic states in transition metal complexes
Tarnovsky, Alexander N
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https://hdl.handle.net/2142/100658
Description
Title
Time-resolved relaxation dynamics of near-infrared excited electronic states in transition metal complexes
Author(s)
Tarnovsky, Alexander N
Contributor(s)
Mereshchenko, Andrey S.
Borin, Veniamin A.
Hicks, Christopher M.
Matveev, Sergey M.
Budkina, Darya S.
Issue Date
2018-06-22
Keyword(s)
Metal containing
Abstract
Sub-100 fs time-resolved, broadband transient absorption spectroscopy was employed to investigate ultrafast radiationless relaxation dynamics of near-infrared, metal-centered (MC), electronic excited states of several d5 and d9 transition metal complexes (e.g., CuCl4 2−, CuBr4 2−, IrBr6 2−, IrCl6 2−, etc.) in acetonitrile solution. The results yield insights into the topology of the involved potential energy surfaces, Jann-Teller distortions, and the dynamics through conical intersections connecting the first excited and ground electronic states (energy gap, less than 8000 cm−1 ). Furthermore, it was found that the addition of water to the solutions efficiently quenches the MC excited states via energy transfer.
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