金属半径

纯金属单键半径R（1）的经验公式

An Empirical Formula of the Single - Bond Radius R ( 1 ) for Pure Metals

补偿效应参数（K0）和能量分布指前因子（1/b）均与负载的金属离子半径（dm）有关。

E. the activation energy ( E ) increased with the increase of the pro-exponential factor ( A ), Both compensation effect parameter ( K0 ) and energy distribution exponential factor ( 1 / 6 ) were closely related to the metal ionic radius ( dm ) .

此外，随着碱土金属离子半径的增加，4,6-二羟基嘧啶碱土金属配合物出现从单核、1D、2D到3D孔道的结构演变，而且这些配合物都具有较强的蓝色荧光发射。

Moreover , the structure evolution from mononuclear , 1-D , 2-D to 3-D porous framework in alkaline earth metal complexes based on 4,6-dihydroxypyrimidine can be attributed to the increasing radius of metal ions , and these complexes exhibit strong blue emissions .

计算金属原子半径和动函数的新方法

A new method of calculating atomic radius and work function of metals

一种计算金属原子半径和离子半径的方法

The method of calculating the atomic radius and positive ionic radius of metal

本文提出了金属原子半径的推算方法。

In this paper , the method of calculation of metal atomic radius is given .

金属原子半径的计算

The Calculation for Atomic Radii of Metals

其中需要强调的是，虽然各轨道能级相差很多，但是对称性却是相同的，这说明金属离子半径的改变对轨道能级的影响要远远大于对轨道对称性的影响。

It needs to be emphasized that although orbital energy levels differ a lot , while the orbital symmetry is the same .

随着碱金属离子半径的增加，PVDF/PFSA-M膜的双指状孔结构明显增大。

The double finger-like structure and the cavities evidently develop with the increase of the radius of the counter-ions of the spun PVDF / PFSA-M membranes .

由于产物离子类型和相对强度接近，因此认为碱金属尺寸半径以及和多肽之间的亲和势的差异消失。

Due to the similarity among the relative abundance of product ions , the difference between the radius of alkali metals and affinity among peptides are regarded as disappeared .

本文主要从糖的构型、构象、金属离子半径的大小和电荷的影响等方面入手分别研究了固体和水溶液中糖与金属离子的配位现象。

The interactions of alkali and alkaline-earth ions and rare & earth metal ions with saccharides , resulting in the formation of saccharide adducts , have been investigated in great detail .

但是随着金属离子半径的增大配体的配位模式趋向于Scheme2-1，模式Ⅲ桥连配位，说明金属离子的半径对配体的配位模式起到了调节作用。

But with the increasing of metal ionic radius the ligand coordination mode tends to Scheme 2-1 , Mode ⅲ, indicating that the radius of metal ions plays a regulatory role on the ligand coordination mode .

通过IR、UV、XPS、热分析对化合物的性质和结构进行了系统表征，表明：过渡金属的离子半径、电子数以及外层电子结构均对新化合物结构和成键特征有着一定影响。

It can be drawn that the ion radius , electron number and outer shell electronic structure of transition elements may have an effect on the structure and characteristics of bonds of multicomponent polyoxometalates with transition elements .

试验中还发现，金属离子的半径对铁氧体的生成有一定的影响。

The experimental results also indicated that the radius of metal ion had quite an effect on formation of ferrite .

金属粉末颗粒半径大小对推进剂燃烧效率、燃烧速率等性能产生重要影响，金属颗粒半径越小，推进剂燃烧越完全，燃烧效率越高。

The smaller the grain size of metal power is , the more complete is the combustion and with higer efficiency .

氢原子的半径只有0.25～2.54A，相比其它金属原子的半径小得多.这种特性使得氢在金属中存在很大的流动性。

Hydrogen has an atomic radius of 0.25 ~ 2.54 A , which is much smaller than that of other metallic atoms . It makes hydrogen easily move in metals .

通过探讨金属的原子半径和离子半径与原子结构之间的定量关系，提出了一种计算金属原子半径和离子半径的方法。

The quantitative relation between atomic radius , positive ionic radius of metal and atomic structure was studied , and a method for calculating the atomic radius and positive ionic radius of metal was proposed .

研究了金属线的半径和排列周期对金属线栅偏振器偏振性能的影响。

The polarizer is optimized for applications within each atmospheric window in the THz region . ( 2 ) The influence of the radius and period of the metal wires on the performances of the polarizer is investigated .

金属感应探测线圈半径优化设计

Optimum design on coil radius of metals induction detect

构成层板的金属离子之间在半径相近的情况下发生同晶取代，层板间具有可交换的阴离子。

Metal ions form Laminates take place isomorphous substitution when they have similar radius , and hydrotalcite has exchangeable anions among laminates .

这与单一重金属元素的结果有差异（单一重金属与铵态氮共存时，吸附能力的顺序为Zn2+Cu2+Cd2+NH4+），引起这种差异的原因可能与金属元素的离子半径和水解常数等性质有关。

This result is different with single heavy metal , which maybe caused by differences of the ionic radius of metal element and the hydrolysis constants .

通过探讨各种掺杂离子对膜的改性规律发现，改性效果与过渡金属离子电荷和半径的比值有关。

Through discussing the rules of the film which is doped various transition metal-ions , we find that the effect of the varied characteristic is related to ratio of electric charges to semidiameter of transition metal-ions .

结论金属离子的离子半径、核外电子排布、卟啉显色剂的空腔大小、流动相组成、色谱柱等都是影响配合物光谱、色谱性质的重要因素。

[ Conclusion ] The radiuses of metal ions , arrangement of extra - nuclear electron , cavity of porphyrin , composition of mobile phase and chromatographic columns are all the important factors that affect the characteristics of spectrum and chromatogram of porphyrin .

实验结果表明：金属氧化物的熔点、金属离子半径、金属元素与分子筛骨架组分特别是铝的固态行为是影响与分子筛相互作用程度并进一步影响分子筛结构的关键因素。

The results indicated that melting point of metal oxide , ion radium of metal and the behavior between metal element and the components of USY framework , especially alumina influenced the stability of USY structure .

其次，考察了金属离子对吸附剂性能的影响，发现金属离子半径越小，吸附脱硫性能越好；

Secondly , Desulfurization efficiency was influenced by different metal ions . The better desulfurization performance , the smaller radius of positive metal ion ;

掺杂金属离子对TiO2相组成的影响取决于金属离子的离子半径、电荷及配位体特征。

The influence of doped metal ions on the phase composition of TiO 2 film was determined by radius , charge and ligand of metal ions .

结果表明，随着频率增加，金属丝波导的群速度降低，损耗增加；随着金属丝半径增加，金属丝波导群速度和损耗降低。

It is shown that the group velocity decreases as frequency increase , while attenuation amplitude increases with the frequency . With the increasing of metal wire radius , the group velocity and attenuation amplitude decrease .

通过单质金属的密度数据和晶体结构分析的数据，实现了金属原子半径的科学推算。

Using the density data of homojunction metal and the analytical data of crystal structure , the metal atomic radius is calculated .

指出金属在汞中的扩散完全符合Einstein&Sutherland公式，式中扩散质点的半径应为金属传质的有效半径。

Diffusion of metals in Hg satisfactorily obeys the Einstein & Sutherland equation ( n-4 ) where the ' effective radii ' of diffusing particles should be used instead of the atomic radii .

对金属化胶体推进剂的热力学、流变学、燃烧及燃烧效率等的分析研究表明，金属化胶体推进剂性能与金属粉末的添加量和金属半径有关；

The thermodynamics , rheology , combustion of metallized gelled propellants ( MGPs ) are analysed . It is showed that the performance of MGPs is related to the amount and grain size of metal power added .