Probing ion structure and correlation in tetrabutylphosphonium tetra(pyrazolato)borate

Tetrabutylphosphonium tetra(pyrazolato)borate is under investigation as an example of an organic ionic plastic crystalline material containing novel N-coordinated borate anions and is of interest as a prototype for non-fluorous plastic crystal and ionic liquid electrolytes for electrochemical cells. This proposal will examine the origins of differences between cation and anion mobility across the plastic crystal and liquid phase regions of this materials (from ~rt-70 C) that have been observed from multinuclear ssNMR spectroscopy.

四丁基膦四(吡唑基)硼酸盐（Tetrabutylphosphonium tetra(pyrazolato)borate）作为含新型N配位硼酸盐阴离子的有机离子塑料晶体材料正受到研究，它作为无氟塑料晶体及电化学电池用离子液体电解质的原型具有研究价值。本研究计划将探讨该材料在塑料晶相和液相区域（约室温至70℃）内阳离子与阴离子迁移率差异的起源——这些差异已通过多核固体核磁共振波谱（multinuclear ssNMR spectroscopy）观察到。