Abstract
The reaction of 4-amino-3,5-bis(3-pyridyl)-1,2,4-triazole (3-bpt) with copper sulfate in EtOH/H 2 O solvent yields four coordination polymers [Cu(3-bpt)(H 2 O) 4 ](SO 4 )·H 2 O ( 1 ), [Cu(3-bpt)(H 2 O) 4 ][Cu(3-bpt)(H 2 O) 3 (SO 4 )](SO 4 )·7H 2 O ( 2 ), [Cu(3-bpt)(H 2 O) 3 (SO 4 )]·2H 2 O ( 3 ) and [Cu(3-bpt)(H 2 O)(SO 4 )] ( 4 ), showing one-dimensional undulated chain, zigzag chain and two-dimensional network. The formations of compounds 1 , 2 and 3 are controlled by the EtOH/H 2 O ratio. The synthesis of compound 4 may be controlled by the EtOH/H 2 O ratio and the temperature because it is prepared under solvothermal condition. The thermal properties have been investigated. Four coordination polymers from one-dimensional undulated chain, zigzag chain, to two-dimensional network were synthesized. The formations of compounds 1 , 2 and 3 are controlled by the EtOH/H 2 O ratio. The synthesis of compound 4 may be controlled by the EtOH/H 2 O ratio and the temperature because it is prepared under solvothermal condition.
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