Wu Wei-pin
2015
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Journal
Journal of Sichuan University of Science & Engineering
Abstract
A case of lanthanide europium ion coordination polymer {[Eu( L)2( phen)( OH) ]}n( 1)( HL = 2-fluoroisonicotinic acid,phen = 1,10-phenanthroline) which is synthetized by 2-fluoroisonicotinic acid,is a 1D chain structure synthetized by the carboxyl and hydroxy ligand of 2-fluoroisonicotinic acid bridging Eu3 +. Eu3 +ion is coordinated by eight donor atoms and has the structure of square-antiprism. All of 1D chains are extended via the intermolecular forces of π…π interactions and C-H…N hydrogen bonds between pyridine ring and C-H…F hydrogen bonds into a 3D supramolecular structures.The thermogravimetric analysis suggests compound 1 can be stable to about 200 ℃. The luminescence property of 1 has been investigated and the result indicates that the compound displays red luminescence which is the characteristic of the Eu3 +ion.