Synthesis, characterization and crystal structures of palladium(II) complexes containing neutral, one and twofold deprotonated 1,2,4-triazine species

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• 作者：Mitra Ghassemzadeh^a ; ^{mghassemzadeh@ccerci.ac.ir"" rel=""nofollow} ; Samira Bahemmat^a ; Masoumeh Tabatabaee^b ; Salameh Nassiri^b ; Bernhard Neumü ; ller^c
• 关键词：1 ; 2 ; 4-Triazines ; Pd(II) complexes ; N ; S-ligands ; Crystal structures
• 刊名：Polyhedron
• 出版年：2011
• 出版时间：21 June 2011
• 年：2011
• 卷：30
• 期：11
• 页码：1760-1766
• 全文大小：723 K

文摘

The synthesis and characterization of three new palladium(II) complexes of 4-amino-6-ethyl-1,2,4-triazine-3-thion-5-one (AETTO, H₃L), [PdCl₂(H₃L)]·H₂O (1), [Pd₂Cl₂(H₂L)(PPh₃)₃]NO₃·2CH₃CN (2) and [Pd(HL)(PPh₃)₂] (3), are reported. All the synthesized compounds are air-stable and were characterized by elemental analyses, IR, NMR spectroscopy and mass spectrometry. In addition, the molecular structures of the complexes have been determined by X-ray single crystal diffraction. On the basis of the crystallographic data, the neutral ligand in 1 and the deprotonated ligands in 2 and 3 act as bidentate NS donors. The singly deprotonated ligand in 2 acts as a bridging agent between two metal centers in the binuclear Pd^II-complex.