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Proceedings Paper

Molecular optical switches based on [Ru(OAc)(2cqn)2NO](H2cqn=2-chloro-8-quinolinol)
Author(s): Hongfei Wang; Xiaowei Jin; Jianru Wang; Xiaoyan Qiao
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Paper 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.

Paper Details

Date Published: 17 February 2012
PDF: 6 pages
Proc. SPIE 8332, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Sensing and Imaging, 833209 (17 February 2012); doi: 10.1117/12.920207
Show Author Affiliations
Hongfei Wang, Shanxi Univ. (China)
Xiaowei Jin, Shanxi Univ. (China)
Jianru Wang, Shanxi Univ. (China)
Xiaoyan Qiao, Shanxi Univ. (China)


Published in SPIE Proceedings Vol. 8332:
Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Sensing and Imaging
Pierre Galarneau; Xu Liu; Pengcheng Li, Editor(s)

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