若干三核羧酸配合物的振动光谱及其与结构的某些相关规律

Vibrational Spectra of Some Trinuclear Transition Metal Carboxylato Complexes and Their Relationship with the Structure

报导了通式为［Ｆｅ_２Ｍ（μ_３－Ｏ）（μ－Ｏ_２ＣＲ）_６·Ｌ_３］·ＸＨ_２Ｏ［其中Ｍ＝Ｍｎ（Ⅱ），Ｃｏ（Ⅱ），Ｎｉ（Ⅱ），Ｆｅ（Ⅲ）（这时骨架为阳离子）；Ｒ＝ＣＨ_３，Ｃ_２Ｈ_５；Ｌ＝Ｈ_２Ｏ，ｐｙ］的３类１１个配合物的振动光谱。在谱带经验归属及简正坐标分析计算的基础上，分别详细讨论了配体及骨架的振动光谱与结构的某些相关规律。这些规律具有一定的普遍性，因而有其理论和实际应用价值。

The vibrational spectra of eleven complexes in three classes with the general formula [Fe_2M (μ_3-O)(μ-O_2CR)_6· xH_2O], where M=Fe(Ⅲ), Mn(Ⅱ), Co(Ⅱ), Ni( Ⅱ); R=CH_3, C_2H_5;L =H_2O, py(pyridin) , are reported in this paper. On the basis of the empirical assignment as well as the normal coordinate analysis of the fundamental vibrations, some correlative regularities between the spectra and the structure of the compounds are discussed in detail both for the ligands and for the skeleton. Owing to the universality to some extent of these regularities, the results obtained therefore are of real interst.