| 基于Keggin阴离子链镍化合物的结构和质子导电性(英文) |
| Crystal Structure and Proton-Conductivity of a Nickel(Ⅱ) Complex Constructed by Poly-Keggin-anion Chains |
|
| 摘要: 由H+(H2O)2.5阳离子，[Ni(H2O)8]2+阳离子，[PW12O40]3-阴离子和异烟酸氮氧化物(HINO)自组装成一个具有质子导电性的化合物{[Ni(H2O)8][H(H2O)2.5](HINO)4(PW12O40)}n。293 K的单晶X-射线衍射分析表明标题化合物形成1个带有一维通道的三维氢键网络结构。[PW12O40]3-阴离子填充在一维通道内并且自组装成多阴离子链。热重分析表明在20~100 ℃范围内化合物没有失重，表明化合物结构单元内所有的水分子在100 ℃以下不易失去。标题化合物在85~100 ℃范围内表现出好的离子导电性(1×10-3~2×10-3 S·cm-1)。 |
| 关键词: 杂多酸 晶体结构 镍(Ⅱ)配合物 异烟酸氮氧化物 |
| 基金项目: |
| Abstract: A proton-conductive complex {[Ni(H2O)9][H(H2O)2.5](HINO)4(PW12O40)}n, was constructed by a self-assembly of cations, [Ni(H2O)8]2+ cations, [PW12O40]3- anions and isonicotinic acid N-oxide (HINO). Single-crystal X-ray diffraction analysis at 293 K revealed that the title complex presented exactly a three-dimensional (3D) hydrogen-bonded network with large one-dimensional (1D) channels. Interestingly, [PW12O40]3- anions just filled in the 1D channels and self-assembled into poly-Keggin-anion chains. Thermogravimetric analysis shows no weight loss in the temperature range of 20~100 ℃, indicating that all water molecules in the unit structure are not easily lost below 100 ℃. The title complex was characterized by a satisfactory ionic conductivity (1×10-3~2×10-3 S·cm-1) in the temperature range 85 to 100 ℃. CCDC: 825709. |
| Keywords: polyoxometalates crystal structure nickel(Ⅱ) complex isonicotinic acid N-oxide |
| |
| 摘要点击次数: 2165 |
| 全文下载次数: 1724 |
| 魏梅林,王晓湘,李会华.基于Keggin阴离子链镍化合物的结构和质子导电性(英文)[J].无机化学学报,2012,28(11):2485-2493. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
