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Issue 18, 2019
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Excited state properties of a series of molecular photocatalysts investigated by time dependent density functional theory

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Abstract

Time dependent density functional theory calculations are applied on a series of molecular photocatalysts of the type [(tbbpy)2M1(tpphz)M2X2]2+ (M1 = Ru, Os; M2 = Pd, Pt; X = Cl, I) in order to provide information concerning the photochemistry occurring upon excitation of the compounds in the visible region. To this aim, the energies, oscillator strengths and orbital characters of the singlet and triplet excited states are investigated. The structural modifications of the complexes have a strong impact on the excited states properties. In particular, it is found that the main differences concern the energies of the charge-separated and metal-centered states. The analysis of these differences provides general trends for the efficiency of population transfers between the states, particularly regarding the charge separation and electron recombination processes.

Graphical abstract: Excited state properties of a series of molecular photocatalysts investigated by time dependent density functional theory

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Article information


Submitted
18 Jan 2019
Accepted
12 Feb 2019
First published
12 Feb 2019

Phys. Chem. Chem. Phys., 2019,21, 9052-9060
Article type
Paper

Excited state properties of a series of molecular photocatalysts investigated by time dependent density functional theory

M. Martynow, S. Kupfer, S. Rau and J. Guthmuller, Phys. Chem. Chem. Phys., 2019, 21, 9052
DOI: 10.1039/C9CP00335E

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