| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1338213 | Polyhedron | 2012 | 6 Pages |
The reactions of palladium(II) chloride, PPh3 and heterocyclic-N/NS ligand in a mixture of CH3CN (5 ml) and CH3OH (5 ml) produced [PdCl2(PPh3)(L1)]·(CH3CN) (1) (L1 = ADMT = 3-amino-5,6-dimethyl-1,2,4-triazine), [PdCl2(PPh3)(L2)] (2) (L2 = 3-CNpy = 3-cyanopyridine), [PdCl(PPh3)(L3)]2·(CH3CN) (3), [PdCl(PPh3)2(HL3)]Cl (4) (HL3 = Hmbt = 2-mercaptobenzothiazole). The coordination geometry around the Pd atoms in these complexes is a distorted square plane. In 3, L3 acts as a bidentate ligand, bridging two metal centers, while in 4, HL3 appears as monodentate ligand with one nitrogen donor atom uncoordinated. Complexes 1–4 are characterized by IR, luminescence, NMR and single crystal X-ray diffraction analysis. All complexes exhibit luminescence in solid state at room temperature.
Graphical abstractFour complexes [PdCl2(PPh3)(L1)]·(CH3CN) (1) (L1 = 3-amino-5,6-dimethyl-1,2,4-triazine), [PdCl2(PPh3)(L2)] (2) (L2 = 3-cyanopyridine), [PdCl(PPh3)2(L3)]Cl (3) and [PdCl(PPh3)(HL3)]2·(CH3CN) (4) (HL3 = 2-mercaptobenzothiazole) have been synthesized by the reactions of PdCl2 with PPh3 and L in CH3CN/MeOH. Compounds 1–4 are characterized by IR, luminescence, 1H, 31P NMR and X-ray diffraction.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Four new Pd(II)–PPh3–N/NS ligand complexes were isolated and characterized. ► Complex 1 is the first Pd(II) complex of ADMT. ► All Pd(II) complexes 1–4 exhibit interesting luminescence at room temperature. ► The complicated 31P NMR spectra is due to reactions of DMSO toward Pd(II) atoms.
