电负性
- electronegativity
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含N有机物的碱性与N的电负性
The relationship between alkalinity and electronegativity in organic componds with n
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过渡金属硼酸盐中B具有比P电负性更低,原子量更小,储量丰富等优点。
Compared with P element . B has a lower electronegativity , lower atomic weight , abundant advantages .
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你看到了电负性的差异,开方,乘以四分之一,在移到e上去做指数。
You see the difference in electronegativity , square it , multiply it by one-quarter and raise that to the power e.
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以基团为基准借电负性修正的分子距边矢量对N,N-二甲基-2-溴苯乙胺类衍生物进行结构表征和活性预测
Structural Characterization and Activity Prediction of N , N-dimethyl-2-bromo ( substituted phenyl ) ethylamine Derivatives Using Molecular Distance Edge Vector Modified by Electro-negativity Based on Groups
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电负性混合气体绝缘取代SF6的可能性
Possibility of Replacing SF_6 Insulation by Electro-negative Gas Mixturees
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Hap在空白溶液中的表面电动电势ζ为负值,且随pH值的增加其电负性增大。
The ζ potential of Hap in blank solution is negative , and the electronegative values increase as pH increases .
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双层CuO2铜酸盐高温超导体的临界温度与电负性标度
Electronegativity and T_c in High-Temperature Superconductors of Cuprate HTSC with Two Layers of CuO_2
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将计算所得正则离域分子轨道进行定域化处理,发现产生这种电负性差异的主要原因是在上述两类叠氮化物中N3的成键状况不同,本文对此进行了较为细致的分析。
The difference for electronegativity of N_3 in molecular-type and ionic-type azides may be due to the different bonding properties , which is found from the detail research about LMOs .
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苯环上的取代基团X对分子离子和一些碎片离子的强度有明显的影响:随X电负性的增强,相应离子的强度下降。
The intensity of molecular ions and some fragment ions of all compounds ( 1 ~ 25 ) was closely related to the electronic nature of substituted group X.
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由于反射式GaAs(Cs,F)光阴极用氟代替氧进行表面激活,氟的强烈的电负性使得表面层的稳定性得到改善。
Using fluorine instead of oxygen in activating the surface of GaAs substrate , the strong electronegativity of fluorine improved the stability of photocathode .
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A、B位替代影响陶瓷的性能与大的溶限因子和电负性差异有关,但其机理和替代前后的固溶体结构还有待进一步研究。
The theory of improving properties from substitution and the structure of solid solution before and after substitution should be studied further , although large tolerance factor and electronegativity difference have important effects on the improving properties .
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从FuzzySet出发,在电脑上用化合物中各元素的电负性、外层电子数、原子半径等参数进行模糊聚类分析,并对20种化合物进行分类,得到了满意的结果。
Starting with the FUZZY SET , the fuzzy clustering is analysed by parameters of electronegativity , number of outer electrons and radius of atom in elements of chemical compound and 20 chemical compounds are classified and achieve desired results .
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氟(fluorine,F)是电负性最强的非金属元素,广泛分布于自然界,人可通过各种来源如水、土壤、空气接触到氟化物。
Fluorine is the most electronegative metallic element widely distributed in nature , people exposure to fluoride through a variety of sources such as water , soil and air .
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本文从C&R键键能、R的电负性、顶点原子x等七个方面入手。试图较全面地给出影响非经典碳正离子稳定性的诸因素。
In this paper we try to give factors of influence rather completely on stability of nonclassical carbonium ions from bond energy of C & R bond , electronegativity of R , top-atom X , etc.
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计算Sanderson电负性标度中Di的新方法
New Metod on Calculating D_i in Sanderson 's Electronegativity Scale
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用Taftσ~常数计算基团电负性
Calculation of group electronegativity with Taft σ
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要度量非平均的程度,我们考虑电负性的差异,我要用希腊语第22个字母chi来表示电负性。
And to measure the intensity of unequal sharing , we take the difference in electronegativity , which I am going to use the Greek symbol chi for .
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键解离能与Pauling电负性差的关系
Correlation Between Bond Dissociation Energies and Pauling Electronegativity Differences
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主族元素的电负性一个计算基团Pauling电负性的方法
Electronegativity values for main group elements Method of Calculating the Pauling Group Electronegativity
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当元素处于离子状态或是原子状态时,对外吸引电子或对外放出电子的固有性能,即与电负性(x)有关系。
Any element , either in the atomic state or in the ionic state , is always surrounded by different atom clusters and thus it has the intrinsic characters of attracting or emitting electrons , i.e. , electronegativity .
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本文研究了单取代苯的~(13)C化学位移与取代基电负性及取代基常数(Hammett常数)的关系。
In this paper the relationship between ~ ( 13 ) C Chemical shifts of monosubstituted benzenes and substituent electronegativity . Substituent constants ( Hammett constants ) have been studied .
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使用电负性强的气体作为开关绝缘气体,如SF6。
Using the gas with good electronegativity , such as SF6.Some experiments on the multi-pulse operation of high power spark gap switch are carried out .
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SDS能增强颗粒表面的电负性,使粒子表面的ζ电位的绝对值增大,影响混凝剂的絮凝效果。
SDS can enhance the surface electronegativity of the particles causing the increase of the absolute value of ζ potential on the particles surface , and affect the flocculation of coagulant .
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分析了电荷转移能、B-O的结合能、B原子电负性、A、B原子价态、电子构型、掺杂等因素对催化剂光催化效率的影响。
And factors of photocatalytic influence including charge transfer energy 、 B-O bonding energy 、 B atom electrongativity 、 valence of A and B atom 、 electronic conformation and doping were also discussed .
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拓扑邻接电负性指数法预测多氯代联苯醚(PCDEs)的理化性质
Topological Adjacent Electronegative Index for Prediction of the Physicochemical Property of PCDEs
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电负性/价电子轨道能拓扑指数与MgB2体系转变温度的关系
The effect of electronegativity and valence electron orbit energy topological index on superconductive critical transition temperature of doping MgB_2 system
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用Sanderson's电负性理论,研究了二价碱金属阳离子交换13X分子筛的吸附性能。
In this paper , using Sanderson 's electronegativity theory , it relates the adsorption properties after alkaline-earth - cation exchanged 13X molecular sieves .
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ABEEM/MM蛋白质力场模型是应用于蛋白质体系的原子-键电负性均衡方法(ABEEM)与力场(MM)相结合的浮动电荷模型。
The ABEEM / MM force field for protein model is the fluctuating charge model for protein combined atom-bond electronegativity equalization method ( ABEEM ) and molecular methanics ( MM ) .
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本文应用密度泛函理论(DFT)和原子-键电负性均衡(ABEEMσπ)模型,来研究所选取的石墨烯构型。
In this article , we use Density Functional Theory ( DFT ) and the atom-bond electronegativity equalization method ( ie. ABEEM σπ model ) to research graphene .
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通过酸性高锰酸钾的氧化在淀粉的糖环上引入羧基,利用羧基强的电负性来增强氧化淀粉(OST)和聚乙烯醇之间的氢键作用力,改善它们的相容性。
By introducing the carboxyl on starch sugar-ring , the hydrogen bonding and electrostatic interaction between oxidized starch ( OST ) and PVA were enhanced .