化合价

LixMn2OyFz中锰的平均化合价的测定

Determination of the Mean Valence of Mn in Li_x Mn _2O_yF_z

采用X-射线吸收精细结构（XAFS）分析在锂离子嵌入过程中Ni原子的化合价和配位数的变化，推测金属锂还原过渡金属氧化物的过程。

Using X-ray absorption fine structure ( XAFS ), the author analysed the valence and coordination number changes of Ni atoms in the process of lithium-ion inserting , inferring the possible process of lithium-ion reducing transition metal oxides .

碳的化合价是4价。

Carbon has a valency of 4 .

所得差值电荷密度表明，当Al原子的最近邻原子为Mn时，Al原子失去较多的电子，Mn原子得到电子，说明发生了Al的外层电子向Mn原子转移，Mn显示负的化合价。

The difference charge density map shows that Al atoms loose significant amount of electrons when their nearest neighbour atom is Mn , and the Mn atom gains electrons . This means that the transfer of electrons from Al to Mn occurs , and Mn has a negative valence .

样品表面中锰呈+4价，镍为+2和+3价的混合价.锰化合价的提高有利于晶胞收缩，稳定尖晶石的结构以及材料在深度放电时抑制Jahn-Teller效应的发生。

On the appearance of the sample , valence state of the manganese is + 4 , and valence state of the nickel is + 2 and + 3 , which redounds to crystal shrinkage , stabilization of the spinel structure and restrains effect of the Jahn-Teller during discharging deeply .

键级和化合价的分子轨道理论

Molecular Orbital Theory of Bond Order and Valency

碳的化合价是四价。

Carbon has a valence of four .

样品中锰的化合价分析结果表明，锰的平均化合价随样品中铜含量的增加而增加。

The average oxidation state of manganese in the product increased with increasing the dopant content .

多价的具有一个以上的化合价的。

Having more than one valence .

（化学）具有一个以上的化合价的，或具有三价或更高价的。

( chemistry ) having more than one valence , or having a valence of 3 or higher .

用四球机试验评价了所合成的有机钼化合物极压抗磨性能.讨论了钼的化合价与有机钼化合物的极压抗磨性能的关系。

The antiwear and load carrying capacities of organo molybdenum compounds synthesized by us were evaluated by four ball machine .

氯的化合价是1，氧是2，氮是3，碳是4。

The valence of chlorine is one , of oxygen two , of nitrogen three , and of carbon four .

报道了烷基碳原子数和钼的化合价对硫磷钼型极压添加剂（简称极压剂）的极压抗磨性能的影响。

The effect of alkyl carbon numbers and the valence of Mo on the performance of extreme pressure additive was investigated .

在离子化合物中，正、负离子的比例严格遵守化学公式定义的化合价关系。

For ionic compounds , the state of having exactly the ratio of cations to anions specified by the chemical formula .

化合物中一种元素的化合价必须等于另一元素的化合价。

The combining power of one element in the compound must be equal to the combining power of the other element .

我们发现了在这些团簇中存在结构、原子化合价以及成键性质的转变。

It is found that there are transitions , such as the structure , valence and bonding nature , in these clusters .

另外，在另一端，我们有原子序数较大的元素，这些元素有着较高的平均化合价和电子能。

And , at the other extreme , we have elements with very high value , elements with high average valence electron energy .

只有控制严格的温度才能制备出所需的产物，尤其对于化合价较多的钴、锰前驱物要尤为重视。

Only strictly controlling the temperature can it be prepared what needed especially for the Cobalt , Manganese precursors because of many chemical valence .

好了，然后我们看到，我们可以看到他的化合价，他们成共价键。

CO Right , so you take the co here , and we take the valence here , and out of that comes covalent .

过渡族金属氧化物由于具有多种化合价形式和特殊的结构而在许多领域有广泛的应用。

Transition metal oxides were widely used in different areas due to their multi-form of oxidation states as well as their special crystal structures .

锰具有独特的氧化还原性能及多变的化合价，含锰储氧材料是汽车尾气净化催化剂的关键材料之一，本文对含锰储氧材料的制备及性能进行了深入的研究。

Since manganese possesses precise redox properties , Mn content oxygen storage material ( OSM ) is a key material of automobile exhaust gas purification .

硅原子占据了氧原子之间的空隙并且和四个氧原子共用化合价。

The silicon atom occupies the space opening ( interstice ) between the oxygen atoms and shares four valence electrons with the four oxygen atoms .

考虑颗粒表面电场和量子振荡的耦合作用之后，必须引入有效电荷系数对离子的化合价进行修正。

After taking into account of the coupling of surface electric field and quantum flocculation , the effective charge number coefficient is introduced into the system .

它是含有0.01～6摩尔%范围的金属元素化合价为3价、4价或5价的任意一种的金属氧化物的氧化镁蒸镀材料。

The magnesium oxide vapor-deposition material comprises metal oxide in which the valence of the metallic element ( s ) is any of3,4 and5 in the range of0.01 to6 mol % .

锰酸锂中，锰为+3价和+4价的化合价态，其理想的平均价态为3.5，此时锰酸锂的电化学性能较好。

The valence of manganese in lithium manganate is one + 3 and one + 4 , so 3.5 is the perfect state , in which the electrochemical performance is better .

电解质溶液的离子浓度、化合价、温度等通过对双电层的厚度产生影响，从而改变悬浮液纳米颗粒的流体动力学半径。

The ion concentration , valence , temperature and so on of the electrolyte can change the hydrokinetics radius of the nano-particles in colloidal suspension by varying the double electrode layer thickness .

计算得到的各原子得失电子的情况显示：不同的局部化学成分和结构环境，同一种元素可以有不同的化合价。

The results about the number of electrons , which an atom gains or loses , show that identical atoms can have different valences because of chemically and structurally different local environments .

作者简介了密立根布居数分析法，并以此为基础讨论了键级和化合价，应用了别致的原子轨道线性组合分子轨道理论（LCAO&MO）的矩阵公式。

Authors first give a brief description of the Mulliken population analysis method and then dwell on bond order and valency according to Mulliken 's method , by adopting elegant matrix formulation of the LCAO-MO theory .

结果表明，不同化合价的氮元素对罗布麻生物脱胶具有不同的影响，以铵盐作为含氮添加剂残胶率为14.1%，以硝酸盐作为含氮添加剂残胶率为15%。

The result indicated that the different nitrogen element has the different influence on apocynum venetum degumming , the remnant pectin rate is 14.1 % with ammonium salt as nitrogen additive , 15 % with the nitrate .

详细讨论了晶粒尺寸随水合肼剂量发生改变的原因，而晶格常数的改变源于晶格弛豫和铈离子化合价效应。

The reason for variation of the particle size with the dosages of N2H4 · H2O was discussed in detail . The variation for lattice parameter was attributed to both lattice relaxation and valence effect of Ce ions .