A Novel Supramolecular Compound with 4-Iodobenzenaminium Based on 18-Crown-6: Synthesis, Structure and Dielectric Properties

作者：Zhou Qin Qin; Fu Da Wei^*

来源：Chinese Journal of Inorganic Chemistry, 2013, 29(8): 1696-1702.

DOI：10.3969/j.issn.1001-4861.2013.00.299

• inclusion compound
• crown ether
• macrocycle
• crystal structure
• permittivity

One novel organic-inorganic hybrid supramolecular compound, ([(4-IA-NH3)center dot(18-crown-6)](2)center dot(Cu2Cl6) (1), has been synthesized and characterized by IR spectroscopy, XRPD, thermogravimetric analysis and single crystal X-ray diffraction (where 4-IA-NH3+=4-iodobenzenaminium; 18-crown-6=1,4,7,10,13,16-hexaoxacyclooctadecane). The organic [(4IA-NH3)center dot(18-crown-6)](+) cation assemblies and inorganic Cu2Cl62- anions arrange alternately to build the macrocycle-based rotator-stator supramolecular inclusion. Temperature-dependent dielectric constants of compound 1 show no distinct dielectric anomalies, suggesting no phase transition within the measured temperature range (130 similar to 450 K). A high dielectric constant above 350 K at a low frequency of 500 Hz suggests that the increase in the disorder molecular thermal motion and/or H-bonding dipole interactions. CCDC: 919514.

• 出版日期2013-8-10
• 单位东南大学