P. K. Srivastava, Narendra Yadav, "Mechanism of Trees / Bushes Like Pattern in Chemical System", Journal of Chemistry, vol. 6, Article ID 579843, 11 pages, 2009. https://doi.org/10.1155/2009/579843
Mechanism of Trees / Bushes Like Pattern in Chemical System
Trees / bushes like pattern have been investigated in succinic acid + ethylacetoacetate + Br + Fe (phen)3+2 + Ce+4 + H2SO4 system at 30 °C in a petridish after 6 hours. These patterns are dependent on initial concentration of reactants and temperature. The system first shows fast appearing / disappearing blue and red pattern then bifurcate into concentric waves and finally shows a tree / bushes type pattern which grows in length and breadth against time. Microphotographs of trees / bushes pattern, succinic acid and ceric ammonium sulphate shows that a new compound has been formed which is responsible for this pattern. It is further confirmed by X-ray powder spectrum of trees / bushes pattern material and succinic acid. IR spectra of pattern material show that presence of cyclic compound in which Ce+4 ion coordinated by hydroxyethylacetoacetate. A tentative mechanism of pattern formation is proposed.
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