Dissolved N2 sensing by pH-dependent Ru complexes

Tetsuro Kizaki; Takahiro Matsumoto; Seiji Ogo

doi:10.1039/B918940H

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Dissolved N₂ sensing by pH-dependent Ru complexes†

Tetsuro Kizaki,^a Takahiro Matsumoto^ab and Seiji Ogo*^ab

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* Corresponding authors

^a Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, Japan
E-mail: ogotcm@mail.cstm.kyushu-u.ac.jp
Fax: 81 92 802 3307
Tel: 81 92 802 2818

^b Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Kawaguchi Center Building, 4-1-8 Honcho, Kawaguchi-shi, Saitama, Japan

Abstract

This paper describes the synthesis and characterisation of Ru-based, water-soluble complexes [Ru^II(X)(Y)(TMC)] (X, Y = H₂O or OH; TMC = 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane) capable of behaving as colorimetric, water-soluble, dissolved N₂ sensors. Unlike previous water-soluble N₂ complexes, binding to N₂ is both reversible and pH-switchable, i.e., binding can be switched on at high pHs and switched off at low pHs. Sensing can be performed at partial pressures of N₂ as low as 0.01 MPa.

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Article information

DOI: https://doi.org/10.1039/B918940H
Article type: Paper
Submitted: 11 Sep 2009
Accepted: 26 Oct 2009
First published: 27 Nov 2009

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Dalton Trans., 2010,39, 1339-1344

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Dissolved N₂ sensing by pH-dependent Ru complexes

T. Kizaki, T. Matsumoto and S. Ogo, Dalton Trans., 2010, 39, 1339 DOI: 10.1039/B918940H

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Dalton Transactions