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铁的简单配合物及羰基化合物的Mossbauer研究已有报道,对有机铁化合物的相应工作进行得较少.本文报道一类具有夹心结构的有机铁化合物的~(57)Fe Mossbauer参数及其与结构的一些关系. 实验双(π-芳烃)铁化合物样品按文献[1]方法合成,经重结晶. ~(57)Fe Mossbauer谱用OXFORD INS.MS500型Mossbauer谱仪室温下测定,放射源为~(57)Co/Rh,强度为25mCi;样品厚度约20mgFe/cm~2;谱仪速度用超纯α-铁箔标定;化学位移值相对于室温的α-Fe谱线中心;谱线及参数经计算机拟合得到,收敛判据为x~2<1.1.
Mossbauer studies on simple iron complexes and carbonyl compounds have been reported, and the corresponding work on organo-iron compounds has been relatively limited.We report the ~ (57) Fe Mossbauer parameters of a class of organo-iron compounds with sandwich structure and their relationship with structure The Fe (superscript 2 +) and Fe (superscript 2+) Fe (superscript 2 +) Fe (superscript 2+) spectra were measured by OXFORD INS.MS500 Mossbauer spectrometer at room temperature and the radioactive sources were ~ (57) Co / Rh with an intensity of 25 mCi, a sample thickness of about 20 mgFe / cm 2, a spectrometer speed calibrated with ultrapure a-iron foil, a chemical shift value relative to the center of α-Fe line at room temperature, spectral lines and parameters The result of computer simulation shows that the convergence criterion is x ~ 2 <1.1.