Combination effect of ionic liquid components on the structure and properties in 1,4-benzenedicarboxylate based zinc metal–organic frameworks
作者:Zong-Hui Zhang、Bing Liu、Ling Xu、Huan Jiao
DOI:10.1039/c5dt02672e
日期:——
Two types of eleven Zn–BDC compounds were synthesized by ionothermal reactions. The combination effects of RMI+ and X− on the structure construction, TG, and fluorescence are observed.
A bicyclic imidazolium ionic liquid (4d), [b-4C-im][Br], was found to be highly effective not only for promoting PCR of GC-rich DNA by minimizing non-specific amplification, but also for facilitating PCR of normal-GC DNA under mild conditions.
lengths and cucurbit[6]uril (CB6) in the solution and the solid state. Correct interpretation of 1H NMR spectra was a key issue for determining the binding modes of the complexes in solution. Unusual chemical shifts of some protons in the 1H NMR spectra were explained by the polarization of the imidazolium aromatic ring upon the complexation with the host. The formation of 1:1 complex between 1‐et
在这项研究中,我们研究了具有可变烷基取代基长度的一系列1-烷基-3-甲基咪唑鎓客人与溶液中和固态的葫芦[6] uril(CB6)之间的超分子相互作用。正确解释1 H NMR光谱是确定溶液中复合物结合模式的关键问题。1 H NMR光谱中某些质子的异常化学位移是由咪唑鎓芳族环与主体络合后的极化所解释的。1-乙基-3-甲基咪唑鎓与CB6之间形成1:1络合物与先前报道的描述在CB6腔中包含两个客体分子的发现不一致。
parameters of the ILs were estimated. The trends of changing with temperature for the dynamic viscosity and the electrical conductivity were described by the Vogel–Fulcher–Tamman equation. The activation energies of dynamic viscosity and electrical conductivity were also calculated. Further, the structures and the energetics of the ILs ions were obtained through combining density functional theory calculations
制备了10种含有碳酸氢根、磷酸二氢根和硫酸氢根阴离子的烷基咪唑基非质子离子液体(AILs),并分别采用元素分析、红外光谱和质子核磁共振等方法对其进行了表征。测量了电导率、密度、动态粘度、表面张力等特性,并在环境条件下的各种温度范围内与热力学和经验方程相关联。估计了 IL 的一些重要的热力学参数。Vogel-Fulcher-Tamman 方程描述了动态粘度和电导率随温度变化的趋势。还计算了动态粘度和电导率的活化能。更远,ILs离子的结构和能量是通过结合密度泛函理论计算和COSMO-RS方法获得的。结构效应...