Molecular optical switches based on [Ru(OAc)(2cqn)2NO](H2cqn=2-chloro-8-quinolinol)

Hongfei Wang; Xiaowei Jin; Jianru Wang; Xiaoyan Qiao

doi:10.1117/12.920207

17 February 2012 Molecular optical switches based on [Ru(OAc)(2cqn)₂NO](H2cqn=2-chloro-8-quinolinol)

Hongfei Wang, Xiaowei Jin, Jianru Wang, Xiaoyan Qiao

Proceedings Volume 8332, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Sensing and Imaging; 833209 (2012) https://doi.org/10.1117/12.920207
Event: Photonics and Optoelectronics Meetings 2011, 2011, Wuhan, China

Abstract

Photoisomerization from cis-2 [Ru(OAc)(2cqn)₂NO] (H2cqn=2-chloro-8-quinolinol) to cis-1 isomer was studied quantitatively and the effect of wavelength on isomerization was investigated. The main absorption band in UV-Vis region for cis-1 and cis-2 isomer was observed from 350 nm to 500 nm, and the kinetic study showed that the photoisomerization from cis-2 to cis-1 isomer was first-order and the rate constant (k) is 0.00022 (s^-1) at 420 nm, 0.00018 (s^-1) at 475 nm, 0.00011 (s^-1) at 550 nm, respectively. Density functional theory (DFT) calculation suggested that the electronic transition from a ligand based orbital to an antibonding overlap of the Ru(d) and π* NO(p) orbitals control the photo induced reactivity of [Ru(OAc)(2cqn)₂NO] complexes. The study provides basic information to design the molecular optical switches and advance optoelectronic materials based on nitrosylruthenium(II) complexes.

Citation Download Citation

Hongfei Wang, Xiaowei Jin, Jianru Wang, and Xiaoyan Qiao "Molecular optical switches based on [Ru(OAc)(2cqn)₂NO](H2cqn=2-chloro-8-quinolinol)", Proc. SPIE 8332, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Sensing and Imaging, 833209 (17 February 2012); https://doi.org/10.1117/12.920207

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KEYWORDS

Absorption

Electronics

Ruthenium

Optical switching

Optoelectronics

Chemical species

Control systems

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