A Phosphine Functionalized β-Diketimine Ligand for the Synthesis of Manifold Metal Complexes.
作者： Christina Zovko , Sebastian Bestgen , Christoph Schoo , Anne Görner , Jose M. Goicoechea
关键词: Crystallography 、 Chemistry 、 Phosphine 、 Coordination number 、 Trigonal planar molecular geometry 、 Metal 、 Rhodium 、 Ligand 、 Square pyramidal molecular geometry 、 Transition metal
摘要: A bis(diphenyl)-phosphine functionalized β-diketimine (PNac-H) was synthesized as a flexible ligand for transition metal complexes. The newly designed features symmetrically placed phosphine moieties around unit, forming PNNP-type pocket. Due to the hard and soft donor atoms (N vs. P) can stabilize various coordination polyhedra. complete series ranging from numbers 2 6 realized. Linear, trigonal planar, square tetrahedral, pyramidal, octahedral arrangements containing PNac-ligand center were observed by using suitable sources. Hereby, PNac-H or its anion PNac- acts mono-, bi- tetradendate ligand. Such broad flexibility is unusual rigid tetradentate system. structural motifs realized treatment of with late precursors, example, silver, gold, nickel, copper, platinum, rhodium. new complexes have been fully characterized single crystal X-ray diffraction, NMR, IR, UV/Vis spectroscopy, mass spectrometry well elemental analysis. Additionally, selected investigated regarding their photophysical properties. Thus, proved be an ideal platform selective stabilization ions in diverse polyhedra oxidation states.
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