Publication Date:
2012-06-01
Description:
One novel organic-inorganic hybrid compound, ( p -CH 3 OC 6 H 4 NH 3 ) + (18-crown-6) · H 2 PO 4 – · 2H 3 PO 4 ( 1 ) (( p -CH 3 OC 6 H 4 NH 3 ) + = 4-methoxyphenylammonium; 18-crown-6 = 1, 4, 7, 10, 13, 16-hexaoxacyclooctadecane), has been synthesized and characterized by IR spectroscopy, thermogravimetric analysis and single crystal X-ray diffraction. In the structure, the organic ( p -CH 3 OC 6 H 4 NH 3 ) + (18-crown-6) supermolecular cation layer and inorganic phosphate anion layer arrange alternately. Temperature- and frequency-dependent dielectric constants of compound 1 show no distinct dielectric anomalies, suggesting no phase transition within the measured temperature range (100–380 K). A high dielectric constant of 442.3 at a low frequency of 200 Hz suggests slow molecular motion and/or space charge polarization rather than fast electronic motion.
Print ISSN:
0044-2313
Electronic ISSN:
1521-3749
Topics:
Chemistry and Pharmacology
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