PEMBUATAN SENSOR LUTETIUM(III) BERBASIS SENYAWA  4-Dodecandioylbis(1-Phenyl-3-Methyl-5-Pyrazolone)UNTUK PENENTUAN ION LUTETIUM(III) SECARA POTENSIOMETRI
(Preparation Lutetium (III) Sensor with 4-Dodecandioylbis(1-Phenyl-3-Methyl-5-Pyrazolone) for Determination of Lutetium (III) Potentiometric)

Deden Saprudin1), Buchari2), Dyah Iswantini1)
1) Dep. Kimia, Fakultas Matematika dan IPA IPB
2) Program Studi Kimia, Fakultas Matematika dan IPA ITB

ABSTRAK

Telah berhasil disintesis turunan pyrazolone yaitu 4-dodecandioylbis(1-phenyl-3-methyl-5-pyrazolone) atau (H2DdBP) dengan metode Jensen, melalui reaksi 1-phenyl-3-methyl-5-pyrazolone dan dodecandioyl chloride dalam suasana basa. Senyawa yang dihasilkan dalam bentuk keto dengan titik leleh 148-1520C, puncak vibrasi 3451 (br, OH), 1624 (s, C=O), 1589 (s, phenyl C=C), 1558 (s, pyrazolone ring). Pergeseran kimia untuk 1H-NMR adalah 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)

Kata kunci : 4-dodecandioylbis(1-phenyl-3-methyl-5-pyrazolone, ionofor, metode jensen,  1-phenyl-3-methyl-5-pyrazolone, dodecandioyl chloride.

ABSTRACT

Pyrazolone derivative,4-dodecandioylbis(1-phenyl-3-methyl-5-pyrazolone) or (H2DdBP) derivatives have been successfully synthesized by the method of Jansen. This method through the reaction 1-phenyl-3-methyl-5-pyrazolone and dodecandioyl chloride in a base. Coumpound produced in the keto form with a melting point 148-152oC, vibration peak 3451 cm-1 (br, OH), 1624 cm-1 (s, C=O), 1589 cm-1 (s, phenyl C=C), 1558 cm-1 (s, pyrazolone ring). Chemical shift for 1H-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).

Keywords :  4-dodecandioylbis(1-phenyl-3-methyl-5-pyrazolone, ionofor, metode jensen, 1-phenyl-3-methyl-5-pyrazolone, dodecandioyl chloride.

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