Magnetic Resonance Letters (May 2024)
Structure and ion transport properties of organic ionic compounds revealed by NMR
Abstract
Organic ionic plastic crystals (OIPCs) are emerging as an important material family for solid-state electrolytes and many other applications. They have significant advantages over conventional electrolyte materials, such as high ionic conductivity, non-flammability, and plasticity. Various nuclear magnetic resonance (NMR) spectroscopy techniques including solid-state NMR, pulsed-field gradient (PFG) NMR, and magnetic resonance imaging (MRI) etc., provide us a versatile toolkit to understand the fundamental level structures, molecular dynamics, and ionic interactions in these materials. This article reviews the commonly used NMR methods including solid- and solution-state NMR, PFG-NMR, dynamic nuclear polarization (DNP) and the application of these methods in revealing the microscopic level structures and ion-transport mechanisms in OIPC materials.