Formation and Characteristics of Acrylonitrile/Urea Inclusion Compound

Abstract

Abstract:The formation process and composition of the acrylonitrile/urea inclusion compounds (AN/UIC) with different aging times and AN/urea molar feed ratios are studied by differential scanning calorimetry (DSC) and X-ray diffraction (XRD). It is suggested that DSC could be one of the helpful methods to determine the guest/host ratio and the heat of decomposition. Meanwhile, the guest/host ratio and heat of

Multi-component crystals containing urea: mechanochemical synthesis and characterization by 35Cl solid-state NMR spectroscopy and DFT calculations

“…, MCCs comprised of urea molecules and other elementary ionic species). Urea remains a vital reagent in many areas of chemistry, 70–76 and is able to form supramolecular assemblies such as inclusion compounds 77–80 and cocrystals, 72,73,81–84 which can be synthesized mechanochemically in some cases. Urea is an ideal molecule for investigation of the syntheses and structures of MCCs, as well as for benchmarking NMR crystallographic protocols, since it is small and has both hydrogen-bond donor and acceptor groups.…”