离子极化对化合物性质的影响  

Effect of Ionic Polarization on the Properties of Compounds

作　　者：王福海 覃松[1] WANG Fu-hai;QIN Song(Department of Chemistry,Neijiang Teachers College,Sichuan Neijiang 641112,China)

机构地区：[1]内江师范学院化学化学化工学院,四川内江641112

出　　处：《广州化工》2020年第21期5-6,45,共3页GuangZhou Chemical Industry

基　　金：内江师范学院本科教学工程教材设计项目“无机化学”(项目编号:jc17005)。

摘　　要：离子键和共价键是共存的,离子键中有共价键成分,共价键中有离子键成分。化学键中离子性和供价性的大小取决化学键中成键元素电负性差值的大小,差值越大,电子云的重叠越小,离子性越大,反之共价性越大。离子键和共价键之间没有明显的界限,存在一个过渡。而离子极化正是离子键向共价键过渡的主要因素。离子极化性和变形型的强弱差异导致化合物的溶解性、颜色、晶格、热稳定性呈规律变化。Ionic bonds and covalent bonds coexist,ionic bonds have covalent bond components and covalent bonds have ionic bond components.The magnitude of the ionicity and valence in the chemical bond depends on the magnitude of the difference in the electronegativity of the bonding elements in the chemical bond.The larger the difference,the smaller the overlap of the electron clouds,the greater the iconicity.Conversely,the greater the covalency.There is no obvious boundary between ionic bonds and covalent bonds,and there is a transition.Ionic polarization is the main factor for the transition of ionic bonds to covalent bonds.The difference in the strength of ionic polarization leads to a regular change in the compound's solubility,color,lattice,and thermal stability.

关 键 词：离子极化 变形性 离子键 共价键 

分 类 号：O6-0[理学—化学]