kbinding PENGIKATAN SENYAWA KEMOSENSOR TURUNAN BENZIMIDAZOL PADA PEMBENTUKAN KOMPLEKS SENSOR-CN

R.  Rahmawati; Syarifa Wahidah  Al-Idrus; Baiq Fara Dwirani  Sofia

doi:10.37859/sainstekes.v2i0.2893

R. Rahmawati Study Program of Chemistry, Department of Education of Mathematics and Natural Sciences, Universitas Mataram, Jalan Majapahit 62, Mataram, Indonesia
Syarifa Wahidah Al-Idrus Study Program of Chemistry, Department of Education of Mathematics and Natural Sciences, Universitas Mataram, Jalan Majapahit 62, Mataram, Indonesia
Baiq Fara Dwirani Sofia Study Program of Chemistry, Department of Education of Mathematics and Natural Sciences, Universitas Mataram, Jalan Majapahit 62, Mataram, Indonesia

https://doi.org/10.37859/sainstekes.v2i0.2893

Keywords: kbinding, Chemosensor, Sensor-CNˉ complex

Abstract

Three chemosensor compounds for detecting cyanide anions have been synthesized. These compounds are derivatives of the benzimidazole compound (S1) with different substituents bonded directly to position 2 of the benzene ring system. The substituent of the Nitro group gives the structure of the S2 compound, the Azo group gives the structure of the S5 compound, and the Azo-Nitro group gives the structure of the S6 compound. Recognition of the CN¯ ion was carried out by dissolving the cyanide salt in distilled water (concentration 1 x 10¯7 M and concentration up to 8 equivalents) and dropping 50 L into the Sensor/DMSO solution. The determination of binding was calculated based on the results of the analysis of the intensity of the UV-vis instrument and the spectrometer in the form of the Benesi-Hilderbrand curve of the sensor-anion complex solution. The best binding to the cyanide ion is in the S2-CNˉ complex: 2.6 × 106 Mˉ1.

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