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本文对[Ge(TPP)I_2]的Ge K吸收边做了EXAFS谱.在最小二乘曲线拟合的基础上,提出了使用ΔR与ΔE_0之间的线性关系,对核间距进行精细调整的技术.同时提出,用N=B/Sj,Sj=S_1~2(1-15σ)的经验公式,对配位数做精细调整.得到第一配住层GeN的核间距R=0.202nm,配位数N=3.7; 第二配位层Ge-1的核间距R=0.249nm,配位数N=1.8.该化合物的分子应为四方双锥的构型.
In this paper, the EXAFS spectra of Ge K absorption edge of [Ge (TPP) I_2] were made.On the basis of the least-square curve fitting, a technique was proposed to finely adjust the core spacing by using the linear relationship between ΔR and ΔE_0 It is also proposed that the coordination number should be finely tuned with the empirical formula of N = B / Sj and Sj = S_1 ~ 2 (1-15σ) .The nuclear spacing of GeN in the first stratum is R = 0.202nm, The number of N = 3.7; the second coordination layer Ge-1 nuclear spacing R = 0.249nm, the coordination number N = 1.8. The molecular compound should be tetragonal bipyramid configuration.