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.
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.
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.
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.
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.
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.
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.
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