互变异构的

By studying the absorption spectra, we have verified the existence of various tautomers of sodium fluorescein in ethanol solution.

通过对其吸收光谱的研究，证明荧光素钠在乙醇溶液中存在多种互变异构体。

OH -Tautomer more stable and predicted to predominate in gas phase.

羟基互变异构体更加稳定和预测天然气占主导的阶段。

General Statement一般性发言 OH -Tautomer more stable and predicted to predominate in gas phase.

羟基互变异构体更加稳定和预测天然气占主导的阶段。

However, poly analogs cannot be obtained through the polymerization of the obvious parent molecule, vinyl amine, because vinyl amine is unstable with respect to its imine tautomer, ethylimine.

然而，聚类似物不能获得通过聚合明显的母公司分子，乙烯胺，因为乙烯胺是不稳定与尊重其亚胺互变异构体， ethylimine 。

Tautomerism: Existence of two or more chemical compound s that have the same chemical composition but different structures and that convert easily from one to another.

互变异构体现象：两种或多种化合物，具有相同的化学组成，但结构不同，很容易从一种转换到另一种。

The investigation into simulation and experiment of IR spectra indicates that there exists no azido-tetrazole tautomerism in solid DAT.

计算模拟IR光谱和实测IR光谱的对比表明DAT在固态下不发生叠氮-四唑互变异构反应。

The reaction mechanism of thione-thiol tautomerism for 2,6-dithiopurine obtained from proton transfer has been investigated by DFT B3LYP method with 6-311 ＋G basis set.

采用密度泛函B3LYP方法，在6-311＋G基组水平上对2，6-二巯基嘌呤质子转移引起的硫醇式与硫酮式互变异构反应进行了计算研究。

Understand keto-enol tautomerism, reactivity of enolate ions.

A5 E3J3 了解酮－烯醇互变异构性，烯醇离子的反应性。

Our results also indicate that the electron-withdrawing character of R2 and R1 also influences the activation energy of the tautomerization reaction.

结果表明，温度对四唑互变异构反应影响很大，低温下四唑在气相中主要以2H-式存在，随着温度的升高1H-式含量增大。

For these compounds, it is necessary to polymerize the intermediate species before tautomerization, eg, at low temperature, eg,-1000C to 1000C, and preferably -100C to 250C, and under anhydrous conditions, to produce vinyl amine polymers.

对于这些化合物，这是必要的聚合中间物种之前，互变异构，例如，在低温下，如- 1000c ，以1000c ，最好是- 100c ，以250c ，并根据无水条件下，生产乙烯胺聚合物。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！