Benzo-18-crown-6 - Acetonitrile (1/2): Crystallization and low-temperature X-ray analysis [German]

摘要

Single crystals of the title complex resulted fortuitously during, an attempt to co-crystallise MeN(SO2Me)(2) with benzo-18-crown-6 from an MeCN solution at -30 degrees C. The crystal structure has been determined via data collection at -100 degrees C (monoclinic, space group P2(1), Z = 4). The nitrile molecules are located with their methyl groups above and below the plane of the 18-membered crown ring. the Me hydrogen atoms being rotationally disordered about the MeCN axes: C(methyl)... O(crown) distances range from 309.4(3) to 384.9(3) pm. [References: 13]