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测定了9个未见报导的新化合物中~(57)Fe的穆斯堡尔谱,每个化合物都含有一个铁镍金属间键。第一组3个化合物的通式为[(C_6H_5)_2PR]_2NiFe(CO)_4(R=CH_3,n-C_3H_7,C_6H_5),其同质异能移在—0.220～—0.260,四极裂距在2.140～2.520。根据文献数据分析,这些化合物中的铁可能具有五配位三角双锥构型,镍基团以一定方式接受了铁的d-电子密度。第二组化合物是第一组化合物分别与外加膦配体反应的产物,通式为[(C_6H_5)_2-
The Mössbauer spectra of ~ (57) Fe in nine new compounds were reported. Each compound contained an iron-nickel intermetallic bond. The first group of three compounds has the general formula of [(C_6H_5) _2PR] _2NiFe (CO) _4 (R = CH_3, n_C_3H_7, C_6H_5). The isomorphism shifts from -0.220 to -0.260. At 2.140 ~ 2.520. According to the literature data analysis, the iron in these compounds probably has a five-coordinate trigonal bipyramid configuration, and the nickel groups accept the d-electron density of iron in a certain way. The second group of compounds is the first group of compounds with additional phosphine ligand reaction product of the general formula [(C_6H_5) _2-