| K4H2.2PTi1.60W10.40O40·13H2O的合成、表征、晶体结构及抗菌活性 |
| Synthesis, Characterization, X-ray Crystal Structure and Antibacterial Activity of K4H2.2PTi1.60W10.40O40·13H2O |
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| 摘要: Na2WO4·2H2O与NaH2PO4及TiCl4在常规条件下反应合成Keggin型钨钛磷酸钾K4H2.2PTi1.60W10.40O40·13H2O(1)，并通过元素分析,IR,UV，X-ray单晶衍射表征。化合物1晶体属于四方晶系，P4/mnc空间群，a=1.415 8(2) nm，b=1.415 8(2) nm，c=1.244 9(3) nm，V=2.495 5(7) nm3，Z=2，R1=0.058 3，wR2=0.144 7。该晶体沿a轴方向晶胞堆积有一截面为0.72 nm × 0.62 nm的孔道，水分子填充在孔道内。183W NMR谱表明多阴离子在溶液中主要以C2对称性的异构体存在。该化合物对绿脓杆菌和β-溶血链球菌有较强的抑制活性。 |
| 关键词: Keggin型钨钛磷酸盐 晶体结构 抗菌活性 |
| 基金项目: |
| Abstract: The synthesis and crystal structure of Keggin type di-Ti substituted tungstophosphate with the formula K4H2.2PTi1.60W10.40O40·13H2O(1) has been reported. The crystal belongs to tetragonal system with space group P4/mnc, a=1.415 8(2) nm, b=1.415 8(2) nm, c=1.244 9(3) nm, V=2.495 5(7) nm3, Z=2, R1=0.059 1 and wR2=0.149 0. The packing drawing of the compound 1 showed unusual channels along a axis. The section magnitude of the channel is 0.72 nm × 0.62 nm. And water molecules filled in the channel. 183W NMR spectra showed that the polyanion of C2 symmetry was the main species in the aqueous solution. The compound 1 showed antibacterial activity against pseudomonas aeruginous and β-hemolytic streptococcus. CSD: 413613. |
| Keywords: Keggin type dititanodecatungstophosphate X-ray crystal structure antibacterial activity |
| 投稿时间：2005-04-22 修订日期：2005-06-16 |
| 摘要点击次数: 1204 |
| 全文下载次数: 2024 |
| 翟宏菊,刘术侠,李玉新,王恩波,胡宁海.K4H2.2PTi1.60W10.40O40·13H2O的合成、表征、晶体结构及抗菌活性[J].无机化学学报,2005,21(12):1798-1802. |
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