Determination of p        <i >KK        <sub >a</sub>a        values of fluorocompounds in water using        <sup >1919        F NMR

Parman Elisabeth; Toom Lauri; Selberg Sigrid; Leito Ivo

摘要

Abstract > Br?nsted acidities of 19 fluorocompounds in the p K <sub>a</sub> range from 3.5 to 10 have been measured in aqueous solution using an approach involving absolute and relative p K <sub>a</sub> measurements with 19 F NMR. 19 F NMR has not been frequently used for determining p K <sub>a</sub> values, but it has a number of advantages, especially when relative values are considered: accurate concentrations not needed, tolerant to impurities, several compounds can be measured simultaneously, several uncertainty sources cancel out. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><abstract type =“main”xml：lang =“en”> <title type =“main”>抽象</ title> > br？在p k </ i>中的19个氟化合物的nsted酸度< 在水溶液中使用3.5至10的亚沉淀，使用涉及绝对和相对pε的方法测量的水溶液 19 </ sup>测量的方法。 sup> f nmr。 19 </ sup> f nmr尚未经常用于确定P k </ i> <sub> a </ sub>值，但它具有许多优点，特别是当考虑相对值时：不需要准确的浓度，耐受杂质，可以同时测量几种化合物，几种不确定性源抵消。 </ p> </ abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-35546/'>《Journal of Physical Organic Chemistry》</a> <b style="margin: 0 2px;">|</b><span>2019年第6期</span><b style="margin: 0 2px;">|</b><span>共8页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Parman Elisabeth&option=202" target="_blank" rel="nofollow">Parman Elisabeth;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Toom Lauri&option=202" target="_blank" rel="nofollow">Toom Lauri;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Selberg Sigrid&option=202" target="_blank" rel="nofollow">Selberg Sigrid;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Leito Ivo&option=202" target="_blank" rel="nofollow">Leito Ivo;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>University of TartuTartu Estonia;</p> <p>University of TartuTartu Estonia;</p> <p>University of TartuTartu Estonia;</p> <p>University of TartuTartu Estonia;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/4796.html" title="有机化学一般性问题">有机化学一般性问题;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=19 F NMR&option=203" rel="nofollow">19 F NMR;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=acidity&option=203" rel="nofollow">acidity;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=fluorocompounds&option=203" rel="nofollow">fluorocompounds;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=p K a values&option=203" rel="nofollow">p K a values;</a> </p> <div class="translation"> 机译：19 f nmr;酸度;氟化合物;p k值; 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Determination of p KK aa values of fluorocompounds in water using 1919 F NMR

摘要

Determination of p KK _aa values of fluorocompounds in water using ^{1919 F NMR}