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近年来,希土冠醚配合物的研究受到广泛重视,但希土氯化物冠醚配合物的报道甚少。A.Seminara等报道过NdB15C5Cl_3·2H_2O与EuBl5C5Cl_3·4H_2O两种配合物,其他希土氯化物与冠醚B15C5之间形成的配合物未见报道。我们用半微量相干衡方法,研究LaCl_3·3H_2O-B15C5-C_2H_5OH三元体系在25℃时的溶解度,为合成固态配合物提供依据。在制得配合物的基础上,利用化学分析、IR、DTG、TG、DSC、电导及X-射线分析研究了配合物的组成与性质。
In recent years, the researches on the rare earth crown ether complexes have received extensive attention, but there are few reports on the preparation of the rare earth chloride crown ether complexes. A. Seminara et al. Reported two complexes of NdB15C5Cl_3 · 2H_2O and EuBl5C5Cl_3 · 4H_2O. The complexes formed between other rare earth chlorides and crown ether B15C5 have not been reported. We use semi-trace coherence method to study the solubility of LaCl_3 · 3H_2O-B15C5-C_2H_5OH ternary system at 25 ℃ for the synthesis of solid complexes. Based on the obtained complexes, the composition and properties of the complexes were studied by chemical analysis, IR, DTG, TG, DSC, conductivity and X-ray analysis.