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A Belousov–Zhabotinsky Oscillator Driven by a Water‐Soluble Metalloporphyrin
Author(s) -
Mukai Masaru,
Do JungHee,
Miyamoto Nobuyoshi,
Arimura Takashi
Publication year - 2016
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201600308
Subject(s) - bromate , belousov–zhabotinsky reaction , nitric acid , chemistry , aqueous solution , malonic acid , briggs–rauscher reaction , potentiometric titration , catalysis , oscillation (cell signaling) , electrode , inorganic chemistry , photochemistry , organic chemistry , biochemistry , bromide
We report for the first time that carbonyl meso ‐tetrakis(4‐N‐methylpyridiniumyl)porphyrinatoruthenium(II) tetraacetate ( Ru‐TPyP ) worked as a catalyst for the Belousov–Zhabotinsky (BZ) reaction. The profiles from the BZ reaction were measured by potentiometric measurements with a Pt electrode and a Hg/HgNO 3 reference electrode. Ru‐TPyP was added lastly to the aqueous solution containing malonic acid (MA), sodium bromate (NaBrO 3 ), and nitric acid (HNO 3 ) at 22 ± 2 °C. The oscillation of the BZ reaction was observed over a fixed period of time only in the solution containing 2.1 × 10 −2 M MA, 3.2 × 10 −2 M NaBrO 3 and 5.5 × 10 −2 M HNO 3 . The self‐oscillation period in Ru‐TPyP was approximately 100 s and it continued for approximately 2600 s.