title: Gas production in the bromate-pyrocatechol oscillator.
abstract: A significant amount of gas production has been observed in the bromate-pyrocatechol oscillator under high concentrations of bromate and pyrocatechol. The observation is in contrast to the general perception that aromatic compounds can form bromate-based oscillators that are free of gas bubbles, which is a desired property in investigating pattern formation. Analysis with (1)H NMR, (13)C NMR, mass spectrometry, and X-ray crystallography illustrate the production of 5-(dibromomethylene)-2(5H)-furanone from pyrocatechol, where the loss of one carbon atom from the aromatic ring causes the formation of gas bubbles. Possible mechanisms have been proposed to explain the observed phenomenon.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Harati
authors.forename: James R
authors.initials: JR
authors.lastname: Green
authors.forename: Benjamin F T
authors.initials: BF
authors.lastname: Cooper
authors.forename: Jichang
authors.initials: J
authors.lastname: Wang
mesh_terms: D015107:4-Butyrolactone / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry; D001959:Bromates / Q000737:chemistry*; D002396:Catechols / Q000737:chemistry*; D018360:Crystallography, X-Ray; D005740:Gases / Q000138:chemical synthesis* / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008958:Models, Molecular; D015394:Molecular Structure
chemical_list: C543124:5-(dibromomethylene)-2(5H)-furanone; D001959:Bromates; D002396:Catechols; D005740:Gases; C034221:catechol; D015107:4-Butyrolactone