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氯酸盐-碘-亚硝酸时钟反应

The chlorate-iodine-nitrous acid clock reaction.

作者信息

Sant'Anna Rafaela T P, Faria Roberto B

机构信息

Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.

出版信息

PLoS One. 2014 Oct 14;9(10):e109899. doi: 10.1371/journal.pone.0109899. eCollection 2014.

DOI:10.1371/journal.pone.0109899
PMID:25313803
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4196969/
Abstract

A new clock reaction based on chlorate, iodine and nitrous acid is presented. The induction period of this new clock reaction decreases when the initial concentrations of chlorate, nitrous acid and perchloric acid increase, but it is independent on the initial iodine concentration. The proposed mechanism is based on the LLKE autocatalytic mechanism for the chlorite-iodide reaction and the initial reaction between chlorate and nitrous acid to produce nitrate and chlorite. This new clock reaction opens the possibility for a new family of oscillating reactions containing chlorate or nitrous acid, which in both cases has not been observed until now.

摘要

提出了一种基于氯酸盐、碘和亚硝酸的新型时钟反应。当初始氯酸盐、亚硝酸和高氯酸浓度增加时，这种新型时钟反应的诱导期会缩短，但它与初始碘浓度无关。所提出的机理基于亚氯酸盐 - 碘化物反应的LLKE自催化机理以及氯酸盐与亚硝酸之间产生硝酸盐和亚氯酸盐的初始反应。这种新型时钟反应为包含氯酸盐或亚硝酸的新一类振荡反应开辟了可能性，而这两种情况迄今为止都尚未被观察到。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9ad/4196969/1a4fed98e66c/pone.0109899.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9ad/4196969/231fb1e3786c/pone.0109899.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9ad/4196969/5973a0351eee/pone.0109899.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9ad/4196969/2c98ccbbe3b0/pone.0109899.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9ad/4196969/dfc2baaa5d68/pone.0109899.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9ad/4196969/1a4fed98e66c/pone.0109899.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9ad/4196969/231fb1e3786c/pone.0109899.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9ad/4196969/5973a0351eee/pone.0109899.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9ad/4196969/2c98ccbbe3b0/pone.0109899.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9ad/4196969/dfc2baaa5d68/pone.0109899.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b9ad/4196969/1a4fed98e66c/pone.0109899.g005.jpg

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本文引用的文献

1
The ozone-iodine-chlorate clock reaction.臭氧-碘-氯酸钟反应。
PLoS One. 2013 Dec 26;8(12):e83706. doi: 10.1371/journal.pone.0083706. eCollection 2013.
2
Photochemically induced autocatalysis in the chlorate ion-iodine system.
J Am Chem Soc. 2007 Jun 27;129(25):7738-9. doi: 10.1021/ja072361l. Epub 2007 Jun 1.
3
Modeling chlorite-iodide reaction dynamics using a chlorine dioxide-iodide reaction mechanism.使用二氧化氯-碘化物反应机理对亚氯酸盐-碘化物反应动力学进行建模。
J Phys Chem A. 2005 Mar 10;109(9):1873-8. doi: 10.1021/jp0457895.
4
The chlorate-iodine clock reaction.氯酸盐-碘时钟反应。
J Am Chem Soc. 2005 Dec 28;127(51):18022-3. doi: 10.1021/ja0570537.