This paper analyzes shell electron pair repulsion theory , valence-bond theory and molecular orbital theory on molecularstructure of noble gas compounds.
An approach based on the graph theory is used to study the relationship between molar refractions of silane and its molecularstructure for the first time in this paper.
本文首次用图论方法探讨了硅烷的摩尔折射度与其分子结构之间的关系，提出一个结构基础明确的定量关系。
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Impact of composition upon the cold flow properties for biodiesel was investigated by molecularstructure, solution crystallization theory and similarity-intermiscibility theory.