%0 Journal Article %T Synthesis of an Adduct-Type Organic Ionic Crystal with Solid-State Ionic Conductivity from A Thiocyanate-Based Ionic Liquid and B(C6F5)3 %J Crystals | An Open Access Journal from MDPI %D 2019 %R https://doi.org/10.3390/cryst9110567 %X We synthesized the novel adduct-type organic ionic crystal [C3mim][SCN¡¤B(C 6F 5) 3] ( 1) by the reaction of 1¨Cmethyl¨C3¨Cpropylimidazolium thiocyanate ([C3mim][SCN]), which is a room temperature ionic liquid, and B(C 6F 5) 3, a bulky Lewis acid. The formation of a coordinative B¨CN bond between the SCN anion and the B(C 6F 5) 3 in 1 was revealed by single-crystal X-ray diffractometry. We showed that 1 displays ionic conductivity in the crystalline state and that doping 1 with sodium thiocyanate and B(C 6F 5) 3 results in a dramatic increase in ionic conductivity compared to that of 1 %U https://www.mdpi.com/2073-4352/9/11/567