Pembuatan Sensor Lutetium (III) Berbasis Senyawa Dodecandioylbis (1-Phenyl-3-Methyl-5-Pyrazolone) untuk Penentuan Ion Lutetium (III) Secara Potensiometr (Preparation Lutetium (III) Sensor with 4-Dodecandioylbis(l-Phenyl-3-Methyl-5-i Pyrazolone) for Determination of Lutetium (III) Potentiometric )

Abstract

Pyrazolone derivative,'4-dodecandioylbis(l-phenyl-3-methyl-5-pyrazolone) or (H2DdBP) derivatives have been successfully synthesized by the method of Jansen. This method through the reaction l-phenyl-3-methyl-5-pyrazolone and dodecandioyl chloride in a base. Coumpound produced in the keto form with a melting point 148-152°C, vibration peak 3451 cm"1 (br, OH), 1624 cm"1 (s, C=0), 1589 cm1 (s, phenyl C=C), 1558 cm1 (s, pyrazolone ring). Chemical shift for !H-NMR are 7.81-7.84, 7.43-7.46, 7.26-7.290 (m, 10H, Ph; 2.72-2.75 (t,4H, (CH2)2); 2.47 (s, 6H, CH3); 1.71-1.76 (m, 4H, (CH2)2); 1.32 (m, 12H, (CH2)6).