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Molecules 2018, 23(4), 845; https://doi.org/10.3390/molecules23040845

Preparation of Ruthenium Dithiolene Complex/Polysiloxane Films and Their Responses to CO Gas

1
Advanced Materials Laboratory, Advanced Automotive Research Collaborative Laboratory, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
2
Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
*
Author to whom correspondence should be addressed.
Academic Editors: Giacomo Dacarro and Piersandro Pallavicini
Received: 6 March 2018 / Revised: 3 April 2018 / Accepted: 4 April 2018 / Published: 7 April 2018
(This article belongs to the Special Issue Coordination Chemistry for Devices and Functional Materials)
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Abstract

To develop advanced materials using metal complexes, it is better to prepare metal complexes contained in composite or hybrid films. To achieve this purpose, we synthesized ruthenium complexes with dihalogen-substituted benzendithiolate ligands, [(η6-C6Me6)Ru(S2C6H2X2)] (X = F, 3,6-Cl, Br, 4,5-Cl), 1b1e. We also investigated preparation of 1c or 1e containing polysiloxane composite films and their reactivity to CO gas. All ruthenium complexes 1b1e reacted with CO gas, and carbonyl ligand adducts 2b2e were generated. Ruthenium complexes 1b1e show two strong absorption peaks around 550 and 420 nm. After exposure to CO gas, these absorption peaks were immediately decreased without a peak shift. A similar trend was observed in 1c or 1e containing polysiloxane composite films. These results indicate that 1c and 1e were easily converted into 2c and 2e, both in the solution and the polysiloxane film during CO gas exposure. View Full-Text
Keywords: ruthenium complex; metalladithiolene complex; carbon monoxide; composite film; sol-gel reaction; tetraethoxysilane ruthenium complex; metalladithiolene complex; carbon monoxide; composite film; sol-gel reaction; tetraethoxysilane
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Tsukada, S.; Sagawa, T.; Yamamoto, K.; Gunji, T. Preparation of Ruthenium Dithiolene Complex/Polysiloxane Films and Their Responses to CO Gas. Molecules 2018, 23, 845.

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