Excited state investigation of a new Ru(II) complex for dual reactivity with low energy light

Excited state investigation of a new Ru(II) complex for dual reactivity with low energy light

The new complex [Ru(tpy)(Me2dppn)(py)](2+) efficiently photodissociates py in CH3CN with Φ500 = 0.053(1) induced by steric bulk from methyl substituents and produces (1)O2 with ΦΔ = 0.69(9) from its long-lived (3)ππ* excited state. The unique excited state processes that result in dual reactivity we...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2015-05, Vol.51 (42), p.8777-8780
Hauptverfasser: Knoll, J D, Albani, B A, Turro, C
Format: Artikel
Sprache:eng
Schlagworte:
Absorption spectroscopy
Coordination Complexes - chemistry
Excitation
Excitation spectra
Light
Low energy
Molecular Structure
Quantum Theory
Ruthenium - chemistry
Spectrophotometry, Ultraviolet
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Zusammenfassung:The new complex [Ru(tpy)(Me2dppn)(py)](2+) efficiently photodissociates py in CH3CN with Φ500 = 0.053(1) induced by steric bulk from methyl substituents and produces (1)O2 with ΦΔ = 0.69(9) from its long-lived (3)ππ* excited state. The unique excited state processes that result in dual reactivity were investigated using ultrafast transient absorption spectroscopy.
ISSN:1359-7345
1364-548X
DOI:10.1039/c5cc01865j