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软硬酸碱理论
相关语句
  hsab theory
     Research Progress in HSAB Theory and Leather Chemistry
     软硬酸碱理论与皮革化学研究的进展
短句来源
     The progress of applying HSAB theory to leather chemistry was reviewed.
     综合论述了软硬酸碱理论在皮革化学中应用的研究进展。
短句来源
  “软硬酸碱理论”译为未确定词的双语例句
     The adsorbents were prepared by 13X loaded separately with Zn~(2+),Cu~(2+),Ni~(2+),Ag~+. Adsorption capacity of thiophene on these adsorbents was investigated. It shows that capacity of thiophene on Ag~+-13X is maximal.
     采用Zn2+,Cu2+,N i2+,Ag+分别负载到13X分子筛制得吸附剂,考察了它们对噻吩的吸附能力,发现Ag+-13X吸附效果最好,与软硬酸碱理论解释的结果一致。
短句来源
     According to Lewis theory of acids and bases and the characteristic structure of R-NH-CS-NH-R', which includes atom of N and atom of S that have the strong capacity of complex and can form steady complex between regents and metal ions.
     根据路易斯软硬酸碱理论和硫脲类试剂独特的结构R-NH-CS-NH-R′,含有络合能力强的N原子和S原子,能与多种金属离子形成络合物;
短句来源
     According to the HSAB prin-ciple,phenol belongs to hard base,the loadings of hard acid ions Al3+,Mg2+,Fe3+ and Ca2+ on AC lead to an increase in the local acid hardness of AC surface,thus improving the adsorption for phenol.
     根据软硬酸碱理论分类,苯酚属硬碱. 在活性炭表面分别负载硬酸类金属离子Al3+、Mg2+、Fe3+和Ca2+,会增大活性炭表面的局部硬酸度,提高对苯酚的吸附能力;
短句来源
     Part two: According to Lewis' theory of acids and bases and the characteristic structure of R-NH-CS-NH-R', which includes atoms of N and atoms of S that have strong complexation and can form steady complexes between reagents and metal ions, we established the fluorescent quenching analytical method of Pb,Ete,Cd in food and water.
     第二章:根据路易斯软硬酸碱理论和硫脲类试剂独特的结构R-NH-CS-NH-R’,因其含有络合能力强的N原子和S原子,能与多种金属离子形成络合物。 建立了分析测定水中及食品中金属元素Pb、Be、Cd等的荧光猝灭分析方法。
短句来源
     The 1-Dialkylaminoethyl-3,6-Pyridazingiones were synthesed. The structure were confirmed by UV and 1H-NMR, and explained by Hard and Soft acid and base priciple.
     本文中合成了1位被N,N-二烷氨基乙基取代的3,6-哒嗪二酮,以UV,H-NMR等数据确定了结构,并以软硬酸碱理论作了解释
短句来源
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  相似匹配句对
     The IEC becaviouf of Cl-, Br- and I- was interpreted from the theory of hard and soft acids and bases.
     从软硬酸碱理论的观点讨论了Cl~-、Br~-.
短句来源
     The Application of the Principle of Hard and Soft Acids and Bases (HSAB) in the Field of Green Corrosion Inhibitor
     软硬酸碱理论在绿色缓蚀剂中的应用
短句来源
     n-FOLD NUMBER THEORY
     n重数理论
短句来源
     The Theory of Channels
     经络理论
短句来源
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  hsab principle
The HSAB principle in the description of the inhibitive effectiveness of heterocyclic N-bases
      
It was shown to be advisable to apply the HSAB principle with taking in consideration the electronic parameters of these molecules.
      
The HSAB principle has been tested by considering some hydrogenation and proton transfer reactions.
      
Binding and kinetic data were interpreted based on the basicity, steric crowd of the entering ligand and HSAB principle.
      
Binding and kinetic data were correlated based on the basicity, steric hindrance of the entering ligand and HSAB principle.
      
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  hsab theory
The CoCl2 adsorption decreased, as predicted by the HSAB theory, according to: P >amp;gt; S >amp;gt; Cl.
      
Metal functionalized adsorbents adsorbed the PPh3 with capacities decreasing as predicted by the HSAB theory: Ag+ >amp;gt; Co2 + >amp;gt; Na+.
      


The conditions of HPIEC separation of Cl-, Br- and I- were studied. The ions were separated within 35 minutes by using NaNO3 as an eluent. the chloride and bromide contents of.some samples were- determined. The trace amounts (ppb order) of chloride in pure water were determined by using a pre-column without a four or six way valve.The IEC becaviouf of Cl-, Br- and I- was interpreted from the theory of hard and soft acids and bases. The following experimental formula was obtained.lgD= 0.24φlg[B]-lg[B] + 0.490...

The conditions of HPIEC separation of Cl-, Br- and I- were studied. The ions were separated within 35 minutes by using NaNO3 as an eluent. the chloride and bromide contents of.some samples were- determined. The trace amounts (ppb order) of chloride in pure water were determined by using a pre-column without a four or six way valve.The IEC becaviouf of Cl-, Br- and I- was interpreted from the theory of hard and soft acids and bases. The following experimental formula was obtained.lgD= 0.24φlg[B]-lg[B] + 0.490 + 0.61where D is the distribution coefficient of an anion, [B] is the concentra-tion of the eluent, φ is the softness of the anion as a base.

用国产高效离子交换色谱仪及国产阴离子交换树脂研究了分离Cl~-、Br~-、Ⅰ~-的条件,以硝酸钠为洗脱液,在三十五分钟内完全分离了上述三种离子。进行了一些样品的定量测定。用无换向阀的予柱富集测定了去离子水中ppb级的Cl~-。从软硬酸碱理论的观点讨论了Cl~-、Br~-.Ⅰ~-的色谱行为,得出了用结构参数及实验条件估算分配系数的经验式:1gD=0.24φg[B]-1g[B]+0.49φ+0.61。

The results of using gas chromatography to follow the reactions revealed that four different reactions were existed simultaneously in the isomerization of O-alkyl phosphorodichloridothioates. They were considered as a combination of rearrangement, decomposition and disproportion reaction as well as hydrolysis. The reaction mechanism was preliminarily discussed according to HSAB theory. It was the first time that S-isopropyl phosphorodichloridothioate was synthesized by using the isomerization method.

本文用气相色谱研究了O-烷基硫代磷酰二氯的重排反应。提出了重排反应的机理,并运用软硬酸碱理论进行了讨论。第一次用重排转位的方法制得了S-异丙基硫代磷酰二氯。

There have been many theoretical studies on hard and soft acids and bases (HSAB)concerning with the quantitativity. Kloqman calculated the values(En~≠ and Em~≠)with the theory of the mutual perturbation of the frontier-controlled molecular orbitals. The results are successfully interpreted in terms of the reactivity of attack in solution. But En~≠ and Em~≠ require many qarameters to be found out and these parameters are difficult to be obtained,In this artiele the equation for En~≠ is simplified and is employed...

There have been many theoretical studies on hard and soft acids and bases (HSAB)concerning with the quantitativity. Kloqman calculated the values(En~≠ and Em~≠)with the theory of the mutual perturbation of the frontier-controlled molecular orbitals. The results are successfully interpreted in terms of the reactivity of attack in solution. But En~≠ and Em~≠ require many qarameters to be found out and these parameters are difficult to be obtained,In this artiele the equation for En~≠ is simplified and is employed in the calculations of the softness character of cations, increasing from 25 to 125 species and dividing them into three categories: hard, soft and borderline acids txceqtions are discussed while most of the results are quite the same as the previous researchers. In addition, the first order stability constants(LogK_1)of hydroxide complexes are usefully calculated by the equation established here containing only En~≠ paraneter. The amounts are the same with the test values.

软硬酸碱理论得到了广泛重视,其定量标度有许多研究,至今仍然未获统一。其中Klopman以量子化学前沿分子轨道微扰理论推证出的E_n~(?)和E_m~(?)定量标度,对溶液中反应的解说极为成功,为软硬酸碱理论奠定了基础。但计算需要的参数多,不易求得。本文简化了E_n~(?)算式,酸硬度的计算由25种扩大到125种,并将它们分为硬酸、软酸、交界酸三类。此外,仅以E_n~(?)一个参数计算出羟配络合物一级稳定常数,并证明该计算式是适用的。结果与前人的研究一致。对少数几个不一致的离子进行了分析讨论。

 
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