价键法明显依赖经典的定域结构。
In the valence bond treatment, explicit recourse is made to classical, localized bond structure.
分子间唯一的力是次价键的引力。
The only forces between molecules are secondary bond forced of attraction.
每个碳原子的价键为四。
原子理论，元素周期表，价键，分子结构。
So, up here, atomic theory, periodic table, bonding, structures and molecules.
在前面一节，我讨论了价键法&电子配对理论。
In the preceding section we discussed the valence bond ( vb) or electron-pair theory of bonding.
价键(VB)理论在经典的共价键理论基础上产生。
Valence-bond theory was formed on the basis of the classical ideas of valence bond.
当温度接近T_D时，共振价键序参量迅速减为零。
When t approaches T_D the RVB order parameter decreases rapidly to zero.
本文根据价键理论导出了一个有机化合物的分子总通式。
Based on the valence bond theory, a general molecular formula for organic com - pounds is derived.
膜层的非线性极化率的改变可用原子基团和价键理论解释。
Changes of the nonlinear polarizability of the molecular layers can be explained by using the theory of atom-radical and valence bond.
基于价键电荷模型计算了碳纳米管的结合能随管径和手性角的关系。
Based on a model of charges at bonds, the binding energy with respect to diameter and chiral Angle of single-wall carbon nanotube have been studied.
这个分子包含四个呈环状排列的碳原子，每两个碳原子之间形成一个三价键。
The molecule contains four carbon atoms arranged in a ring with a triple bond between two of them.
价键理论根据鞣剂与胶原活性基团形成配位键的强弱，解释各种无机鞣剂鞣革性能的差异。
The bonding theory explains the difference of hydrothermal stability of leathers tanned by various mineral-tanning agents according to their bond strength to collagen.
尽管通常的价键理论可加以扩展以适用于这些化合物，但仍然有许多棘手的问题有待解决。
Although the usual bonding theories can BE extended to accommodate these compounds, they still provide stimulating problems to BE resolved.
对稀有气体化合物的分子结构分别用“价层电子对互斥理论”、“价键理论”和“分子轨道理论”进行了分析处理。
This paper analyzes shell electron pair repulsion theory , valence-bond theory and molecular orbital theory on molecular structure of noble gas compounds.
根据镧系元素络合物的晶体结构数据确定了单价键长R0的镧系收缩效应，并对已有的键价参数进行了系统的修订。
Based on the crystal structure data of the lanthanide complexes, lanthanide contraction of the single valance bond length R0 for Ln-O bond is confirmed.
测试计算表明，该方法保持了价键方法的特点，且计算结果比传统的使用芯-价分离技术的价键方法有较大的改善。
Testing calculations show that VB-MP2 method has the qualities of a VB method along with a quantitative advantage over VB-only method in comparison with traditional core-valence separation.
红外光谱和电子能谱的分析结果表明：聚合物薄膜中含有环状共轭结构，铜与聚合物以共 价键、配 位键结合。
Results of analysis with IR and ESCA showed that ring -shaped conjugated structures exist in the films. Copper atom may be linked to the polymer either by covalent bond or coordination bond.
分子轨道理论中的组态相互作用是一种简单直接的电子相关能计算方法 ，显然这一方法可以应用于价键方法中 。
The energy of electronic ground of BO and BO molecule has been calculated by means of configuration interaction method.
应用X 射线衍射（XRD）、扫描电子显微镜（SEM）、能谱（EDX）和红外光谱（FTIR）等分析手段对试样的相组成、形貌、成分、价键结构等进行了分析；
XRD, EDX, SEM and FTIR were used to characterize the structure, composition, morphology and chemical bonds of the samples.
基于凝相机理与热解实验，从分子层面和化学反应的角度，结合价键、形式电荷、链反应等理论和固体单元推进剂的燃烧状况，提出了AP与HMX间的“连锁互动”机制。
Related to bond polarity, formal charges on atoms, chain reaction theory and the comparison of solid monopropellant combustion and modeling, the "linkage mutualism"mechanism was proposed.
从键价的概念出发，对氧化物超导体中铜离子的有效电荷进行了计算。
Effective valences of copper in superconducting oxides were calculated from the concept of bond valence.
本文主要介绍有机硼试剂，包括烷基硼烷，烯基硼烷及一些四价硼酸盐类，在碳碳键形成中的应用。
The review deals mainly with the application of organoboron reagents including aikylboranes, vinylborancs and some organoborates in carbon-carbon bond formation.
基于元素键参数拓扑指数原理以及镧系元素价层电子结构特征构建了一种新的拓扑指数HLA。
An element bonding parameter topological index HLA is proposed based on topological principle and valence shell electron structural character.
在这个模型中，认为围绕中心原子的化学键的排列取决于价层中电子对的数量。
In this model the arrangement of bonds around the central atom is considered to depend upon how many valence-shell electron pairs.
在这个模型中，认为围绕中心原子的化学键的排列取决于价层中电子对的数量。
In this model the arrangement of bonds around the central atom is considered to depend upon how many valence-shell electron pairs.
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