title: Oximated ruthenium tris-bipyridyl complex: synthesis and luminescent response specifically for ClO(-) in water containing multiple ions.
abstract: Hypochlorite has been widely and essentially used as the disinfecting agent of water in our daily life. Rapidly, specifically, quantitatively and simply monitoring ClO(-) in water remains to be investigated and is of importance. For this purpose a novel complex bis(2,2'-bipyridine)(4'-methyl-2,2'-bipyridyl-4-carbaldehyde oxime)ruthenium chloride (Ru-C[double bond, length as m-dash]N-OH) was prepared. In water, reaction of complex Ru-C[double bond, length as m-dash]N-OH and ClO(-) results in bis(2,2'-bipyridine)(4'-methyl-2,2'-bipyridyl-4-carboxylic acid)ruthenium (Ru-CO2H) and thereby offers an efficient luminescence response. This was ascertained to be a specific oxidation reaction of complex Ru-C[double bond, length as m-dash]N-OH with ClO(-), and can be used for quantitatively monitoring aqueous ClO(-). The product of the oxidation reaction of complex Ru-C[double bond, length as m-dash]N-OH and ClO(-) was isolated and assigned to Ru-CO2H. The luminescent emission spectra of complex Ru-C[double bond, length as m-dash]N-OH in the presence of ClO(-) demonstrated that the coexistence of F(-), Cl(-), Br(-), I(-), HCO3(-), HSO4(-), H2PO4(-), S2O3(2-), SO3(2-), CO3(2-), PO4(3-), HPO4(2-), NO3(-), AcO(-), Li(+), Na(+), K(+), Ca(2+), Mg(2+), Zn(2+), Co(2+), Fe(3+), Ni(2+), Pb(2+), Hg(2+), Mn(2+) and Cu(2+) did not interfere in the quantitative change of the intensity of the luminescent emission.
authors.affiliation: Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials; College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China. shiqipeng@163.com sqpeng@bjmu.edu.cn.
authors.forename: Minna
authors.initials: M
authors.lastname: Li
authors.forename: Yuji
authors.initials: Y
authors.lastname: Wang
authors.forename: Yutong
authors.initials: Y
authors.lastname: Yang
authors.forename: Yeqing
authors.initials: Y
authors.lastname: Gao
authors.forename: Ming
authors.initials: M
authors.lastname: Zhao
authors.forename: Meiqing
authors.initials: M
authors.lastname: Zheng
authors.forename: Shiqi
authors.initials: S
authors.lastname: Peng
mesh_terms: D015082:2,2'-Dipyridyl / Q000737:chemistry*; D060326:Chemistry Techniques, Synthetic; D006863:Hydrogen-Ion Concentration; D006997:Hypochlorous Acid / Q000737:chemistry*; D008163:Luminescent Measurements; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D010084:Oxidation-Reduction; D010091:Oximes / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D010091:Oximes; D014867:Water; D015082:2,2'-Dipyridyl; D006997:Hypochlorous Acid; D012428:Ruthenium