摘要
依据已建立的离子质电比和相差异因子对离子半径的标度方法,系统性地研究了非稳定构型阳离子的相差异因子,采用回归分析法,改进了非稳定构型阳离子半径的计算公式。将稳定构型阳离子半径公式推广到等电子阳离子半径系统,计算了ⅡA(B)-ⅦA族52种离子半径数据;用改进的非稳定构型阳离子半径公式计算了四到七周期过渡元素(包括镧系和錒系),+1到+8各价态阳离子半径373个,其中预测了较为合理的271种阳离子半径数据。与前文中稳定构型阳离子半径合在一起,共108种元素508种离子半径,这些数据随周期数、族数以及价态等变化十分规律,是一套较好的、较为完整的单原子离子半径数据。
According to the method of ionic radius scale by mass-to-electricity and factor of phase difference of ion,the authors studied systematically the factor of phase difference of ions with unstable electronic configuration. With regression analysis,the corrector formulas of the calculating positive ionic radius with unstable electronic configuration were obtained. The calculating formulas of the positive ionic radius with stable electronic configuration was introduced into the system of isoelectronic ions with positive charge,and the 52 radii of positive ions inⅡA(B)-ⅦA groups could be calculated. The 373 radii of positive ions ( + 1 to + 8) of the transition elements (including lanthanide and actinide) were calculated by the corrector formulas of the positive ionic radius with unstable electronic configuration. The 271 positive ionic radii could be predicted by the formulas,and the calculating values were relatively proper. These data,together with our previous data reported which were ionic radius with stable electronic configuration,formed a set of whole better data of monatomic ionic radii. It contained 508 ionic radii,involving 108 elements. These data changed very regularly along with as periodicity,the group number and the valence state etc.
出处
《化学通报》
CAS
CSCD
北大核心
2010年第4期350-359,共10页
Chemistry
基金
中国高等教育学会"十一五"教育科学研究规划课题(06AIJ0240031)
邯郸市科学技术研究与发展计划项目(0921140074-6)资助
关键词
离子半径
质电比
相差异因子
计算公式
离子
Ionic radius
Mass-to-electricity
Factor of phase difference
Calculating formula
Ion