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

Penulis

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

DOI:

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

Kata Kunci: kbinding, Kemosensor, Komplek sensor-CN kbinding, Chemosensor, Sensor-CNˉ complex

Abstrak

Tiga senyawa kemosensor untuk mendeteksi anion sianida telah disintesis. Senyawa-senyawa ini merupakan turunan dari senyawa benzimidazol (S1) dengan substituen berbeda yang terikat langsung pada posisi 2 dari sistem cincin benzena. Substituen gugus Nitro memberikan struktur senyawa S2, gugus Azo memberikan struktur senyawa S5, dan gugus Azo-Nitro memberikan struktur senyawa S6. Rekognisi terhadap ion CN¯ dilakukan dengan melarutkan garam sianida dalam akuades (konsentrasi 1 x 10¯⁷ M dan konsentrasi hingga 8 ekivalen) dan meneteskan 50 μL ke dalam larutan Sensor/DMSO. Penentuan k_bindingdihitung berdasarkan hasil analisis intensitas spektra instrumen UV-vis dan spectrometer berupa kurva Benesi-Hilderbrand dari larutan kompleks sensor-anion. Pengikatan yang paling bagus terhadap ion sianida adalah pada komplek S2- CNˉ: 2.6 × 10⁶ Mˉ¹.

Unduhan

Data unduhan belum tersedia.

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