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本文利用红外光谱（ＦＴＩＲ）、Ｘ－射线粉末衍射谱，并配合ＩＣＰ分析，对在水溶液中不同浓度和反应配比的ＮａＤＣ脱氧胆酸钠和ＣｏＣｌ２反应生成的一系列脱氧胆酸金属络合物的组成和结构进行了研究。当ＮａＤＣ的反应浓度在Ｃ．Ｍ．Ｃ以上，且Ｃｏ２＋离子浓度较高时，或当ＮａＤＣ的反应浓度在Ｃ．Ｍ．Ｃ以下时，Ｃｏ２＋离子与单分子ＮａＤＣ作用，生成结晶度很好的絮状Ｃｏ（ＤＣ）２脱氧胆酸钴沉淀，其组成为Ｃｏ（ＤＣ）２３Ｈ２Ｏ。当ＮａＤＣ的反应浓度在Ｃ．Ｍ．Ｃ以上，且Ｃｏ２＋离子浓度较低时，Ｃｏ２＋与ＮａＤＣ胶团作用，交联形成具有凝胶性质的、大分子网状结构的Ｃｏ（ＤＣ）２－ＮａＤＣ复杂络合物。后者更接近于人体胆囊中Ｃｏ２＋与ＮａＤＣ相互作用的真实模式。
In this paper, a series of metal deoxycholate complexes formed by the reaction of NaDC sodium deoxycholate and CoCl2 with different concentrations and ratios in aqueous solution were studied by FTIR, X-ray powder diffraction and ICP analysis. The composition and structure were studied. When NaDC reaction concentration in C. M. C, and the concentration of Co2 + ions is high, or when the reaction concentration of NaDC is at C. M. C, the Co2 + ion interacts with the monomolecular NaDC to produce a highly crystalline flocculent cobalt (DC) 2 deoxycholate precipitate with a composition of Co (DC) 23H2O. When NaDC reaction concentration in C. M. C, and the Co2 + ion concentration is low, Co2 + interacts with the NaDC micelles to form a complex complex of Co (DC) 2-NaDC with a macromolecular network structure. The latter is closer to the real pattern of Co2 + interaction with NaDC in the human gallbladder.