Synthesis and crystal structures of three organoplatinum(II) complexes bearing natural aryl-olefin and quinoline derivatives.

Three organoplatinum(II) complexes bearing natural aryl-olefin and quinoline derivatives, namely, [4-meth-oxy-5-(2-meth-oxy-2-oxoeth-oxy)-2-(prop-2-en-1-yl)phen-yl](quinolin-8-olato)platinum(II), [Pt(CHO)(CHNO)], (), [4-meth-oxy-5-(2-oxo-2-propoxyeth-oxy)-2-(prop-2-en-1-yl)phen-yl](quinoline-2-carboxy-l-ato)platinum(II), [Pt(CHO)(CHNO)], (), and chlorido-[4-meth-oxy-5-(2-oxo-2-propoxyeth-oxy)-2-(prop-2-en-1-yl)phen-yl](quinoline)-plat-inum(II), [Pt(CHO)Cl(CHN)], (), were synthesized and structurally characterized by IR and H NMR spectroscopy, and by single-crystal X-ray diffraction. The results showed that the cyclo-platinated aryl-olefin coordinates with Pt the carbon atom of the phenyl ring and the C=C group. The deprotonated 8-hy-droxy-quinoline (CHNO) and quinoline-2-carb-oxy-lic acid (CHNO) coordinate with the Pt atom the N and O atoms in complexes () and () while the quinoline (CHN) coordinates the N atom in ().

Synthesis, crystal structure and anti-cancer activity of the complex chlorido-(η-ethyl-ene)(quinolin-8-olato-κ,)platinum(II) by experimental and theoretical methods.

The complex [Pt(CHNO)Cl(CH)], (I), was synthesized and structurally characterized by ESI mass spectrometry, IR, NMR spectroscopy, DFT calculations and X-ray diffraction. The results showed that the deprotonated 8-hy-droxy-quinoline (CHNO) coordinates with the Pt atom the N and O atoms while the ethyl-ene coordinates in the η manner and in the position compared to the coordinating N atom. The crystal packing is characterized by C-H⋯O, C-H⋯π, Cl⋯π and Pt⋯π inter-actions.