一种新型Ru(II)配合物与低能量光双重反应性的激发态研究
Excited state investigation of a new Ru(II) complex for dual reactivity with low energy light.
作者信息
Knoll J D, Albani B A, Turro C
机构信息
Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA.
出版信息
Chem Commun (Camb). 2015 May 25;51(42):8777-80. doi: 10.1039/c5cc01865j.
Abstract
The new complex Ru(tpy)(Me2dppn)(py) 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.
摘要
新配合物Ru(tpy)(Me2dppn)(py)在乙腈中能有效地光解离吡啶，在甲基取代基的空间位阻诱导下，其500nm处的量子产率Φ500 = 0.053(1)，并从其长寿命的(3)ππ*激发态产生单线态氧，量子产率ΦΔ = 0.69(9)。利用超快瞬态吸收光谱研究了导致双重反应性的独特激发态过程。
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