摘要 :
Reaction in aqueous medium of KReO_4 in methanolic solution of RaaiCH_2Ph (l-benzyl-2-(arylazo)imidazole) (1) in the presence of perchloric acid has isolated brown products of {[1-benzyl-2-(arylazo)imidazolium][ReO_4~-]· H_2O}_n,...
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Reaction in aqueous medium of KReO_4 in methanolic solution of RaaiCH_2Ph (l-benzyl-2-(arylazo)imidazole) (1) in the presence of perchloric acid has isolated brown products of {[1-benzyl-2-(arylazo)imidazolium][ReO_4~-]· H_2O}_n, 2. The structural confirmation has been carried out by the single crystal X-ray diffraction study of ([1-benzyl-2-(phenylazo)imidazolium][ReO_4~-]·H_2O}, 2a. The molecules are polymerized via hydrogen bonding and form cross-linked network.
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摘要 :
1-Alkyl-2-(arylazo) imidazoles are pi-acidic, bidentate chelating molecules. In acid medium imidazole-N centers are protonated and can extract heavy anions. One such example is the binding with ReO_4~- in acidic medium. 1-Alkyl-2-...
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1-Alkyl-2-(arylazo) imidazoles are pi-acidic, bidentate chelating molecules. In acid medium imidazole-N centers are protonated and can extract heavy anions. One such example is the binding with ReO_4~- in acidic medium. 1-Alkyl-2-(arylazo) imidazolium-perrehenate shows hydrogen obnded 1D network. Inclusion of H_2O into the molecular frame of 1D increases the dimensionality to 2D network.
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