Polyoxotungstate-Surfactant Layered Crystal toward Conductive Inorganic-Organic Hybrid
Polyoxotungstate-Surfactant Layered Crystal toward Conductive Inorganic-Organic Hybrid
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DOI：
10.3390/cryst2020362
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发表时间：
2012-06-01
期刊：
影响因子：
2.7
通讯作者：
Mizuno, Noritaka
中科院分区：
文献类型：
--
作者：
Ito, Takeru;Fujimoto, Nozomu;Mizuno, Noritaka
以十聚钨酸盐（[W_（10）O_（32）]（4-），W_（10））和十六烷基吡啶（C（16）py）为原料，合成了一种多钨酸盐-表面活性剂杂化层状化合物。通过X射线衍射、红外光谱和元素分析，确定其结构式为（C（16）py）（4）[W_（10）O_（32）]（C（16）py-W-10）。层状结构由W-10无机单层和C（16）py双层交替堆叠而成，层状周期为23.3埃。W-10无机单分子膜中的每个W-10阴离子都被C（16）py的亲水头隔离。C（16）py-W-10的混合晶体在500 K左右分解。混合层状晶体的电导率估计为4.8 × 10（-6）S cm（-1），在423 K的交流（AC）阻抗谱。
A polyoxotungstate-surfactant hybrid layered compound was synthesized as a single phase by using decatungstate ([W10O32](4-), W10) and hexadecylpyridinium (C(16)py). The X-ray structure analysis combined with infrared spectroscopy and elemental analysis revealed the formula to be (C(16)py)(4)[W10O32] (C(16)py-W-10). The layered structure consisted of alternative stacking of W-10 inorganic monolayers and interdigitated C(16)py bilayers with layered periodicity of 23.3 angstrom. Each W-10 anion in the W-10 inorganic monolayers was isolated by the hydrophilic heads of C(16)py. The hybrid crystals of C(16)py-W-10 decomposed at around 500 K. The conductivity of the hybrid layered crystal was estimated to be 4.8 x 10(-6) S cm(-1) at 423 K by alternating current (AC) impedance spectroscopy.