A zinc porphyrin-based molecular probe for the determination of contamination in commercial acetonitrileThis article is part of the ChemComm 'Porphyrins and Phthalocyanines' web themed issue.Electronic supplementary information (ESI) available: Titration of CN− with 1 and ZnTPP. See DOI: 10.1039/c2cc31149f

A zinc porphyrin-based receptor containing four triazole groups at the ortho -position of each phenyl group ( 1 ) was utilized as a useful probe for the determination of contaminants in acetonitrile (MeCN). Through the simple observation of the absorption spectrum of 1 in MeCN, the cyanide contamination concentration could be directly determined. A zinc porphyrin-based receptor containing four triazole groups at the ortho -position of each phenyl group ( 1 ) was utilized as a useful probe for the determination of contaminants in acetonitrile (MeCN). Through the simple observation of the absorption spectrum of 1 in MeCN, the cyanide contamination concentration could be directly determined.