SINTESIS DAN KARAKTERISASI SENYAWA BASA SCHIFF DARI 4,4-DIAMINODIFENIL ETER DAN VANILIN SERTA INTERAKSINYA DENGAN ION LOGAM Cu2+

DHAMAYANTI, ERIKA and Hidayati, Nurlisa (2023) SINTESIS DAN KARAKTERISASI SENYAWA BASA SCHIFF DARI 4,4-DIAMINODIFENIL ETER DAN VANILIN SERTA INTERAKSINYA DENGAN ION LOGAM Cu2+. Undergraduate thesis, Sriwijaya University.

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Abstract

Schiff's base synthesis has been carried out from the reaction between the compounds 4,4-diaminodiphenyl ether and vanillin. The resulting Schiff base then interacts with Cu2+ metal ions. The characterization of Schiff's base was performed using UV-Visible, FT-IR, XRD spectrophotometers, and pH influence. The interaction between Schiff base and Cu2+ metal ions is studied through the influence of the interaction of Cd2+ and Zn2+ metal ions on the formation of Schiff's base complex with Cu2+ metal. The successful synthesis of Schiff base from 4,4-diaminodiphenyl ether and vanillin is evidenced by the formation of yellow colored crystal powder and seen from the results of monitoring Schiff base on KLT plates which show the formation of Schiff base compounds with yellow stains and have an Rf value of 0,52. The appearance of maximum absorption at a wavelength of 250 nm which is the electronic transition from π to π* on a UV-Visible spectrophotometer. In addition, based on the FT-IR spectrum, absorption appears at a wavelength of 1600 cm-1 which indicates the presence of an azomethine group, in the XRD result the base Schiff 4,4-diaminodiphenyl ether-vanillin has a sharp diffractogram peak at an angle of 2θ= 19.301°,51.04°. Schiff base compounds have the highest absorption at pH 5, where the double bond (C=N) formed is more stable or has a good resistance structure. Schiff's base ligands form complexes with Cu2+ metal ions characterized by the appearance of absorption in the charge transfer region (LMCT) at λ 400 nm and the d-d transition at λ 630 nm. The Cd2+ and Zn2+ metal ions also cause the wavelengths of the Schiiff-metal ion Cu2+ base ligands to shift towards smaller wavelengths (hypsochromic effect).

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Schiff base, KLT monitoring, characterization, Cu2+, metal ion interference.
Subjects:	Q Science > QD Chemistry > QD146-197 Inorganic chemistry Q Science > QD Chemistry > QD241-441 Organic chemistry
Divisions:	08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1)
Depositing User:	Erika Dhamayanti
Date Deposited:	08 Aug 2023 08:17
Last Modified:	08 Aug 2023 08:17
URI:	http://repository.unsri.ac.id/id/eprint/126382

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