Cr(Ⅲ)，Cu(Ⅱ)，Zn(Ⅱ)与2，2′-二硫代二苯甲酸配合物的合成及表征

Synthesis and characterization of Cr(Ⅲ),Cu(Ⅱ) and Zn(Ⅱ) with 2,2′-dithio-binary benzoic acid complexes

苯甲酸类过渡金属配合物因其在有机合成、生物化学的催化领域的潜在应用而备受关注。文中采用水热合成法,以2,2′-二硫代二苯甲酸为配体与Cr(Ⅲ),Cu(Ⅱ)和Zn(Ⅱ)3种金属离子氯化物反应,在140℃得到3种相应过渡金属配合物。依据元素分析,质量、容量分析确定了配合物的组成,通过红外光谱分析确定了3种目标配合物的结构。研究结果表明:2,2′-二硫代二苯甲酸与Cr(Ⅲ)形成摩尔比为3∶2型配合物,与Cu(Ⅱ)形成摩尔比为2∶1型配合物,与Zn(Ⅱ)形成摩尔比为2∶2型配合物。

The transition metal complexes possessing benzoic acid continue to attract a great deal of interest because of their potential applications in the fields of organic synthesis and biochemical catalysis. Three transition metal complexes as 2,2′-dithio- binary benzoic acid with Cr（ III）, Cu（Ⅱ） and Zn（Ⅱ） were hydrothermally synthesized at 140 ~C. Their compositions were identified by elements analysis, capacity analysis and mass analysis. The structures of the title complexes were assumed by IR analysis. The results indicate that the complexation mole ratio of C r（Ⅲ） to 2,2′-dithio-binary benzoic acid is 3：2, the complexation mole ratio of Cu （Ⅱ） to 2,2′-dithio-binary benzoic acid is 2：1 and the complexation mole ratio of Zn（Ⅱ） to 2,2′-dithiobinary benzoic acid is 2：2.