<![CDATA[Anomalous H+ and D+ Excited-State Proton-Transfer Rate in H2O/D2O Mixtures]]>

Oren Gajst; Ron Simkovitch; Dan Huppert

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2O/D₂O Mixtures]]>

机译：<！[cdata [异常h + 和d + H _{2 O / d _{2 2 2 o / d _{2 m mixtures]]>}}}

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We used the time-resolved fluorescence technique to measure the excited-state proton-transfer (ESPT) rates from 8-hydroxy-1,3,6-pyrenetrisulfonate (HPTS) to solvent mixtures of H₂O and D₂O. We found an anomalous deviation from linear mole-fraction behavior of the ESPT rate in H₂O/D₂O mixtures. We provide a chemical model based on equilibrium constant of the reaction H₂O + D₂O ? 2HOD and rate constants of the ESPT process of H and D transfers from HPTS to the mixed solvent. Anomalous deviation from linear mole-fraction behavior was previously found for H+/D+ conductance in these mixtures.]]>

机译：<！[cdata [ src ='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jpcafh/2017/jpcafh.2017.121.issue-37/acs.jpca.7b04361/ 20170915 /图像/介质/ JP-2017-04361R_0010.gif“>我们使用时间分辨荧光技术来测量来自8-羟基-1,3,6-丙烯酸脲磺酸盐的激发态质子转移（ESPT）率（HPTS ）对于H _{2 O和D _{2 o的溶剂混合物。我们发现了H _{2 O / D _{2 O混合物中的ESPT率的线性摩尔分数行为的异常偏差。我们提供基于反应H _{2 O + D _{2 O的平衡常数的化学模型？ 2HOD和H和D的ESPT过程的常数从HPTS转移到混合溶剂中。在这些混合物中，先前发现了对线性摩尔分数行为的异常偏差。]]>}}}}}}

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《The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory》 |2017年第37期|共8页
作者
Oren Gajst; Ron Simkovitch; Dan Huppert;
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Raymond and Beverly Sackler Faculty of Exact Sciences School of Chemistry Tel Aviv University Tel Aviv 69978 Israel;

Raymond and Beverly Sackler Faculty of Exact Sciences School of Chemistry Tel Aviv University Tel Aviv 69978 Israel;

Raymond and Beverly Sackler Faculty of Exact Sciences School of Chemistry Tel Aviv University Tel Aviv 69978 Israel;

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正文语种 eng
中图分类物理化学（理论化学）、化学物理学;
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2O/D2O Mixtures]]>

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2O/D₂O Mixtures]]>