互变异构,tautomerism
1)tautomerism[英][t?:'t?m?riz?m][美][t?'tɑm?,r?zm?]互变异构
1.Theoretical investigation on tautomerism of amrinone;氨力农互变异构的理论研究
2.Density functional theory calculations on tautomerism of 2-pyrimidinones;2-嘧啶酮互变异构的密度泛函理论计算
3.A Study on Novel Fluorescent Probe Containing Rhodamine Structure (Ⅰ)——Tautomerism and Spectroscopic Characteristics;新型罗丹明类荧光标记探针的研究(Ⅰ)-氨基标记产物的质子化互变异构
英文短句/例句

1.nitro-acinitro tautomerism硝基酸硝基互变异构
2.enol keto tautomerism烯醇 酮互变异构现象
3.imine-enamine tautomerism亚胺-烯胺互变异构
4.oxaloacetate tautomerase草酰乙酸互变异构
5.Theoretical Study on Tautomerism and QSAR of Multi-carbonyl Compound;多羰基化合物互变异构及构效关系的理论研究
6.Presumably these are caused by the existence of tautomeric forms.这可能是由于这些化合物存在互变异构体所致。
7.Theoretical Study on the Tautomerisms of Monochalcogenocarboxylic Acids and Monochalcogenosilanoic Acids;单氧代羧酸及硅酸互变异构反应的理论研究
8.Theoretical Studies on the Reaction Mechanism of Tautomerization of 5-Substitued-1,2,3-Triazoles;5-取代1,2,3-三唑互变异构反应机理的理论研究
9.Study on the Tautomerism of β-Keto Esters by Gas Chromatography;气相色谱研究β-二酮酯化合物的互变异构
10.A Theoretical Study on Isomerization Mechanism between Ketone and Enol Compounds Assisted by Water Molecules水助酮类化合物互变异构反应机理的理论研究
11.Reaction of Carbamoylsilane with Nitrone and Tautomerism of Product氨甲酰基硅烷与硝酮的反应及产物的互变异构
12.Spectroscopic Studies of Several β-Diketones Compounds and Their Tautomers几种β-二酮化合物互变异构体的光谱性质研究
13.Density Functional Theory Calculation on 4-Thiouracil Tautomers4-硫尿嘧啶互变异构体的密度泛函理论计算
14.Density Functional Theory Calculation on 5-methylcystein Tautomers5-甲基胞嘧啶互变异构体的密度泛函理论研究
15.This complex reaction is characterized by a keto-enol tautomerism eqilibrium and ester exchange reaction.此螯合反应是由酮一烯醇互变异构平衡过程和酯交换反应组成。
16.Theoretical Study on the Reaction Mechanism of Tautomerization of 3-Substituted Indazole;3-取代吲唑衍生物互变异构反应机理的理论研究
17.Theoretical Study of Stabilities and Tautomerism on Energetic Material N_nH_n(n=4~6);含能材料分子N_nH_n(n=4~6)系列稳定性分析及其互变异构的理论研究
18.Theoretical Studies on Thermodynamics and Dynamics of 2, 6-dithiopurine Tautomers;2,6-二巯基嘌呤互变异构体热力学性质与动力学过程的理论研究
相关短句/例句

tautomerization互变异构
1.Theoretical investigation on conformational isomerization and tautomerization of 4-phenyl-2-thiopyrimidine;4-苯基嘧啶-2-硫酮互变异构的理论研究
3)tautomer['t?:t?m?]互变异构
1.Synthesis of 1-benzotriazolacetyl-5-hydroxy 2-pyrazolines and study on their tautomers;1-苯并三唑乙酰基-5-羟基吡唑啉的合成及其互变异构的研究
2.Molecular structures of 5-formyl-1,2,3-triazoles tautomers were calculated by the B3LYP method at the 6-311++G level both in the gaseous and aqueous phases with full geometry optimization.用密度泛函B3LYP/6-311++G**方法,对气相和水相中的5-醛基-1,2,3-三唑互变异构体进行了几何构型全自由度优化,获得了它们在气相和水相中的几何结构和电子结构。
4)tautomerism[英][t?:'t?m?riz?m][美][t?'tɑm?,r?zm?]互变异构体
5)tautomer['t?:t?m?]互变异构体
1.Density functional theory investigations of thermodynamic stability of 2,6-dithiopurine tautomers;2,6-二巯基嘌呤互变异构体热力学稳定性的密度泛函理论研究
2.Density functional theory calculations on 2,6-dithioxanthine tautomers;2,6-二硫代黄嘌呤互变异构体的密度泛函理论研究
3.Density Functional Theory Calculations of 6-thioxanthine Tautomers;6-硫代黄嘌呤互变异构体的密度泛函理论计算
6)tautomers互变异构体
1.The six possible 2,6-dithiopurine tautomers have been optimized with full geometries by Density Functional Theory(DFT) method at B3LYP/6-311G(d,p) level in the gas phases.利用密度泛函(DFT)B3LYP/6-311G(d,p)方法,对气相中可能存在的6种2,6-二巯基嘌呤互变异构体进行了几何构型全自由度优化,并计算出其零点能、总能量、振动频率、红外光谱强度等参数,频率经校正,同已有红外光谱实验数据进行比较。
2.In the second part, Molecular structures of indazole and 3-substituted indazoletautomers were calculated employing the electron correlated Becke3LYP functiona.探讨了不同的3-取代基团和溶剂化效应对互变异构体的几何结构、能量、电荷分布以及互变异构反应活化能的影响等。
延伸阅读

互变异构互变异构tautomerism某些有机化合物的结构以两种官能团异构体互相迅速变换而处于动态平衡的现象。例如,乙酰乙酸乙酯是酮式和烯醇式的平衡混合物:在乙酰乙酸乙酯中加入能与酮作用的足够试剂后,乙酰乙酸乙酯将全部以酮式起反应;同样,加入足够量的烯醇试剂后,则能全部以烯醇式起反应。酮式中的活泼亚甲基-H2-由于同时受两个吸电子的羰基影响,其氢原子变得很活泼,容易作为氢离子离开,同时使活泼亚甲基的碳原子上的电子对发生共轭转移,负电荷落在内氧原子上。分子中的两个羰基的亲电子性能不同,酮的羰基新电性较强,氧上容易带有负电荷,形成烯醇式结构。酮式和烯醇式迅速互相变换,互为变异构体。这两种异构体在低温(-78℃)时互变速率很慢,可将它们分开。此外,还有环已酮的酮式和烯醇式的互变异构现象等。