Palladium(II) saccharinate (sac) and thiosaccharinate (tsac) complexes with 2-aminopyridine (2-ampy), 2-acetylaminopyridine (2-aampy) and 2-acetylaminopyrimidine (2-aampym) co-ligands: X-ray crystal structures of trans-[Pd(sac)2(ampy)2] and solvatomorphs trans-[Pd(sac)2(2-aampy)2]·S (S=CHCl3, thf)
作者： Subhi A Al-Jibori , Qusay KA Al-Jibori , Harry Schmidt , Kurt Merzweiler , Christoph Wagner
DOI: 10.1016/J.ICA.2013.03.036
关键词: Hydrogen bond 、 Stereochemistry 、 Pyridine 、 Crystallography 、 Chemistry 、 Amine gas treating 、 Homoleptic 、 Denticity 、 Palladium 、 2-Aminopyridine 、 Crystal structure 、 Physical and Theoretical Chemistry 、 Inorganic chemistry 、 Materials Chemistry
摘要: Abstract Reactions of Na2PdCl4 with two equivalents 2-aminopyridine (2-ampy), 2-acetylaminopyridine (2-aampy) or 2-acetylaminopyrimidine (2-aampym) afford complexes the type trans-[PdCl2L2]. Further reaction sodium saccharinate (Nasac) affords mixed-ligand trans-[Pd(sac)2L2]. X-ray structures trans-[Pd(sac)2(2-ampy)2] and solvatomorphs trans-[Pd(sac)2(2-aampy)2].S (S = CHCl3, thf) have been carried out. In all three, ligands coordinate in a monodentate fashion via endocyclic amido group four lie approximately perpendicular to PdN4 plane. metal ion lies on an inversion centre consequently adopt relative anti/anti-configuration, while both trans-[Pd(sac)2(2-aampy)2] they syn/syn-configuration, latter possibly resulting from intramolecular hydrogen bonding between amine protons carbonyl oxygen. trans-[PdCl2L2] thiosaccharin (tsacH) are dependent upon nature amine. Thus, trans-[PdCl2(2-ampy)2] desired complex trans-[Pd(tsac)2(2-ampy)2] results, however acetylamine only known homoleptic complex, [Pd(tsac)2], is isolated.
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