Cis and trans- palladium (II) complexes derived from SNN amidrazone pincer ligand: Synthesis, crystal structures and biological evaluation

Publication date: Available online 15 July 2019Source: Journal of Molecular StructureAuthor(s): Mousa Al-Noaimi, Firas F. Awwadi, Wamidh H. Talib, Salem Atia, Hassan H. HammudAbstractPalladium(II) complex [Pd(HL)Cl] (1) (H2L = 2-PhS(C6H4)NH-NC=(COCH3)–NHC6H5) has been synthesized by reacting K2PdCl4 with H2L. The pincer H2L ligand is coordinated to a Pd(II) in an anionic 5π electron form via k3 –SNN to produce neutral 1-trans and 1-cis isomers in the solid state. The structures of two isomers (1-trans and 1-cis) were determined by single crystal X-ray diffraction. Furthermore, complex 1 has been characterized by electrochemical and spectroscopic techniques. Antiproliferative activity was conducted agaisnt two breast cancer cell lines using MTT assay. The complex showed significant antiprliferative activity against breast cancer cell lines and low toxicity toward normal cells. Theoretical calculation was used to predict the electronic transition of the complex 1.Graphical abstractPalladium(II) complex [Pd(HL−)Cl] (1) (H2L = 2-PhS(C6H4)NH-NC=(COCH3)–NHC6H5) have been synthesized by reacting K2PdCl4 with H2L. The pincer HL− ligand is coordinated to a Pd(II) in an anionic 5π electon form via k3 –SNN to produce neutral 1-trans and 1-cis isomers in the solid state. The structures of two isomers (1-trans and 1-cis) were determined by single crystal X-ray diffraction. Antiproliferative activity was conducted agaisnt two breast cancer cell lines using MTT assay. ...
Source: Journal of Molecular Structure - Category: Molecular Biology Source Type: research