【摘要】 合成了二苯并-18-冠-6四溴合铟（Ⅲ）酸钾配合物,由元素分析确定该配合物的化学式为KInBr₄(C₂₀H₂₄O₆)2·H₂O,用X射线单晶衍射测定了该配合物的结构,晶体属单斜晶系,空间群C₂h⁵—P2₁/n,晶胞参数为a=8.727（5）,b=26.051（13）,c=20.470（13）,β=92.73（5）°,z=4,In（Ⅲ）与Br^-形成InBr₄^-配阴离子,K⁺与一个二苯并-18-冠-6（DB18C6）以及一个水分子直接配合,配位数为7,另一个DB18C6以未被配合的分子形式存在于晶体中,水合二苯并-18-冠-6四溴合铟酸钾配合物晶体结构测定的实验结果为阐明在相应的萃取体系中DB18C6萃取KInBr₄的机理提供了必要的理论依据。更多还原

【Abstract】 A complex of hydrated dioenzo-18-crown-6-potassium tetrabromoindate （Ⅲ）, KInBr4（C20H24O6 ）2·H2O, has been synthesized and its crystal structure has been determined by single crystal X-ray diffraction techniques with a four circle diffractometer of Nicolet model R3. The ctystal is mo-noclinic with space group P21/n.The unit cell parameters are: a= 8.727（5） A, b = 26.051（13）A, c = 20.470（13）A, β=92.73（5）°,z=4. One molecule of dibenzo-18-crown-6（DB18C6） and one molecule of water are coordinatedto the potassium ion, another molecule of DB18C6 is in the form of unco-mplexed crown ether which exists in the crystal lattice. Anionic complex InBr₄^- has a tetrahedral configuration. The determination of crystal struc-ture of K（DB18C6）2 InBr H2O provides some thebretical consideration forelucidating the mechanism of corresponding extraction system of In（ Ⅲ ）/ KBr/DBl8C6-1, 2-C2H4Cl2 .更多还原