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 Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides 相关领域
离子半径
电负性
共价键
粘结长度
离子键合
离域电子
金属
八面体
材料科学
协调数
电子
结晶学
离子
化学
物理
晶体结构
有机化学
量子力学
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| 备注 |
Acta Cryst. (1976). A32, 751-767 https://doi.org/10.1107/S0567739476001551 Cited by 88814
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| DOI | |
| 其它 | The effective ionic radii of Shannon & Prewitt [Acta Cryst. (1969), B25, 925-945] are revised to include more unusual oxidation states and coordinations. Revisions are based on new structural data, empirical bond strength-bond length relationships, and plots of (1) radii vs volume, (2) radii vs coordination number, and (3) radii vs oxidation state. Factors which affect radii additivity are polyhedral distortion, partial occupancy of cation sites, covalence, and metallic character. Mean Nb5+-O and Mo6+-O octahedral distances are linearly dependent on distortion. A decrease in cation occupancy increases mean Li+-O, Na+-O, and Ag+-O distances in a predictable manner. Covalence strongly shortens Fe2+-X, Co2+-X, Ni2+-X, Mn2+-X, Cu+-X, Ag+-X, and M-H- bonds as the electronegativity of X or M decreases. Smaller effects are seen for Zn2+-X, Cd2+-X, In2+-X, pb |
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