钐（Ⅲ）与2－［（取代苯胺基）羰基］苯甲酸配合物的合成与表征

Synthesis and Characterization of the Complex of Samarium(Ⅲ)with 2-[(Substituted Phenylamino)Carbonyl]-Benzoic Acid

报道了８种２－［（取代苯胺基）羰基］苯甲酸与Ｓｉｎ（Ⅲ）配合物Ｓｉｎ（Ｐ）３·３Ｈ２Ｏ［其中Ｐ＝２－（ＣＯＯ）Ｃ６Ｈ４ＣＯＮＨＣ６Ｈ５－ｎＸｎ，Ｘ＝Ｈ，２－Ｃｌ，４－Ｂｒ，２－ＣＨ３，３－ＮＯ２，２－ＯＣＨ３，２，４－二氯，３－ＯＨ，ｎ＝１，２］的合成，并用元素分析、红外光谱、电子反射光谱、热重分析进行了表征。结果证明，配位是通过羧酸羟基氧原子和酰胺羰基氧原子进行的，含３分子配住水。通过电子反射光谱数据，对Ｎｅｐｈｅｌａｕｘｅｔ比率（β），平均共价参数及平均成键参数进行了计算，确证了这些配合物均有弱的共价成键特征。

The complexes of the general formulae Sin(P)3.3H2O(P=2=(COO)C6H,CONHC6H5-nXn,n=1,21;X=H,2-C1,4-Br,2-CH3,3-NO2,2-OCH3,2,4-Dichloro, 3-OH) have been synthesised andcharacterized on the basis of elemental analysis,infrared and reflectance electronic spectra as well asthermog ravimetry.The results show that the coordination occurs by means of two oxygen atoms,onefrom the amido and the other from the hydoxyl in the carboxylate. The complexes contained three coordination water molecule.Using the spectra data,the Nephelauxitic ratio(P),average covalency parameters(6),average bonding parameters have been evaluated,indicating weak covalent bonding.