A Convenient Method for the Direct Acquisition of Kinetic Rate Data for Catalytic Organic Reactions by Gas Uptake Measurements,Asian Journal of Organic Chemistry

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A Convenient Method for the Direct Acquisition of Kinetic Rate Data for Catalytic Organic Reactions by Gas Uptake Measurements
Asian Journal of Organic Chemistry ( IF 2.8 ) Pub Date : 2017-10-16 , DOI: 10.1002/ajoc.201700406
Yu-Jie Wang ₁ , Wei-Tang Li ₁ , Lei Jiao ₁

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Kinetics studies play an indispensable role in determining the mechanism of many catalytic organic reactions. In this context, real‐time rate data, rather than concentration data, have proved particularly valuable for mechanistic analysis. However, methods that can directly yield rate data of sufficiently high quality are still limited. In this paper, a convenient method for the direct measurement of rate profiles of homogeneous catalytic organic reactions that involve a gaseous reactant is described. By integrating a high‐precision pressure controller and an accurate mass flow meter, real‐time rate profiles of catalytic reactions on a research laboratory scale at isobaric conditions could be acquired. The method is precise, easy to implement for most organic chemists, and can produce kinetic data of comparable or even superior quality to established kinetic methods, such as ReactIR. The potential of this method in kinetics studies was demonstrated by the study of the initial rate and reaction progress kinetic analysis of several aerobic oxidation reactions.

中文翻译：

通过气体吸收测量直接获取催化有机反应动力学速率数据的简便方法

动力学研究在确定许多催化有机反应的机理中起着不可或缺的作用。在这种情况下，实时速率数据而不是浓度数据已被证明对于机械分析特别有价值。然而，仍然可以直接产生质量足够高的速率数据的方法受到限制。在本文中，描述了一种直接测量涉及气态反应物的均相催化有机反应速率分布的简便方法。通过集成高精度压力控制器和精确的质量流量计，可以获得在等压条件下研究实验室规模的催化反应的实时速率分布。该方法是精确的，对于大多数有机化学家来说易于实施，并可以产生与已建立的动力学方法（例如ReactIR）相当甚至更高质量的动力学数据。通过一些好氧氧化反应的初始速率和反应过程动力学分析，证明了该方法在动力学研究中的潜力。

更新日期：2017-10-16

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