Semiconducting charge-transfer complexes from oxidation of 1,5-DIAMINOANTHRAQUINONE (cas 129-44-2)

Add time:10/01/2019    Source:infona.pl

Semiconducting coordination complexes have been synthesized by the oxidation of 1,5-diaminoanthraquinone (1,5-DAAQ) using Cu(NO 3 ) 2 , CuCl, Ni(NO 3 ) 2 , AgNO 3 , PdCl 2 , FeCl 3 and ceric ammonium nitrate. Anionic oxidants like K 2 S 2 O 8 and KIO 4 , also oxidize 1,5-DAAQ in the presence of Cu 2 + . The oxidized 1,5-DAAQ complexes with neutral 1,5-DAAQ form charge-transfer (CT) complexes which are semiconducting. Maximum conductivity is exhibited by copper complexes. Extraction of these CT complexes with acetone results in loss of neutral 1,5-DAAQ and decreased conductivity. Variable temperature conductivity measurements reveal their semiconducting nature.

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