THE SYNTHESIS, STRUCTURE OF TWO PLATINUM(II) COMPLEXES BEARING ARYLOLEFIN AND QUINOLIN-8-OL DERIVATIVE
DOI:
https://doi.org/10.18173/2354-1059.2025-0009Keywords:
eugenol, propyl eugenoxy acetate, Pt(II) complexes, 1H NMRAbstract
The reaction of complex K[PtCl3(Eug)] with HOQCHO or complex [PtCl(Preug-1H)]2 with HOQ afforded two novel complexes [PtCl(Eug)(OQCHO)] (C1) and [Pt(Preug-1H)(OQ)] (C2), both obtained in high yields. Their structures were determined using elemental analysis, IR spectroscopy, and 1H NMR spectroscopy. The results confirmed that in both complexes, the amine ligand is deprotonated at the OH group and chelates the Pt(II) center through the N and O atoms. In C1, Eug coordinates to Pt(II) via the allylic C=C bond, while in C2, Preug-1H coordinates to Pt(II) not only through the allylic C=C bond but also via the C5 atom of the benzene ring. Additionally, C1 exists in two conformational forms in solution due to rotation of the CHO group around the C-C bond, leading to two distinct sets of signals in its 1H NMR spectrum.
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