title: Dissolved N(2) sensing by pH-dependent Ru complexes.
abstract: This paper describes the synthesis and characterisation of Ru-based, water-soluble complexes [Ru(II)(X)(Y)(TMC)] (X, Y = H(2)O or OH; TMC = 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane) capable of behaving as colorimetric, water-soluble, dissolved N(2) sensors. Unlike previous water-soluble N(2) complexes, binding to N(2) 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 N(2) as low as 0.01 MPa.
authors.affiliation: Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan.
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Kizaki
authors.forename: Takahiro
authors.initials: T
authors.lastname: Matsumoto
authors.forename: Seiji
authors.initials: S
authors.lastname: Ogo