| 水合二苯并-18-冠-6四溴合铟(Ⅲ)酸钾K(DB18C6)2InBr4·H2O配合物的晶体结构 |
| CRYSTAL STRUCTURE OF HYDRATED DIBENZO-18-CROWN-6-POTASSIUM TETRABROMOINDATE(Ⅲ) |
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| 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)Å,b=26.051(13)Å,c=20.470(13)Å,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. |
| 关键词: 晶体结构 冠醚 铟 萃取 |
| 基金项目: |
| 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)Å, b=26.051(13)Å, c=20.470(13)Å, 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. |
| Keywords: crystal structure crown ether indium extraction |
| 投稿时间：1986-12-17 |
| 摘要点击次数: 1510 |
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| 叶玲,樊玉国,周稚仙,张宪新.水合二苯并-18-冠-6四溴合铟(Ⅲ)酸钾K(DB18C6)2InBr4·H2O配合物的晶体结构[J].无机化学学报,1987,3(4):93-99. |
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