Gold(III) Complex of Caffeine: Synthesis, Isolation and Spectroscopic Characterization

Authors : Bojidarka Ivanova

Pages : 97-103

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Publication Date : 9999-12-31

Article Type : Makaleler

Abstract :Au(III)-caffeine complex was synthesized and characterized by means of solid-state linear-dichroic infrared spectral analysis (IRLD), 1H-NMR, MS, DSC and TGA methods. The caffeine (I) is monodentate and coordinated with metal ion through its N9 atom at molar ratio metal to ligand 1:1. The other 3 positions in the Au(III) coordination sphere are occupied by Cl-, thus forming [Au3+(C8H10N4O2)Cl3] complex. IR-characteristic band assignment in the 4000-400 cm-1 IR region of pure ligand and corresponding Au(III)complex was performed.
Keywords : Caffeine, gold(III)-complex, IR-LD spectroscopy, 1H-NMR