The development of routes and strategies for the design and preparation of complexes of 4d metals in moderate oxidation states is of great importance in magnetochemistry, bioinorganic chemistry, materials chemistry an...The development of routes and strategies for the design and preparation of complexes of 4d metals in moderate oxidation states is of great importance in magnetochemistry, bioinorganic chemistry, materials chemistry and solid-state chemistry. Bidentate ligands containing N or O donors especially phenanthroline have been widely used to form complexes with interesting structural motif. Reaction of M（CO）6 （M = Cr, Mo, W） with phenanthroline has been done in 1935 and produced an interesting stereo structure, but the reaction of MoOE（acac）2 （acac = acetylacetonato） with phenanthroline has not been studied yet. So, in this research, first of all MoOE（acac） 2 was prepared, and then it reacted with bidentate nitrogen donor to lead to produce the complex of [MoOEL2] （L = Phen） and different aspects of this complex were studied. This complex is very active and highly selective epoxidation catalyst. The structure of the product was characterized by various spectral techniques such as elemental analysis, IH NMR, 13C NMR and IR spectroscopy.展开更多
文摘The development of routes and strategies for the design and preparation of complexes of 4d metals in moderate oxidation states is of great importance in magnetochemistry, bioinorganic chemistry, materials chemistry and solid-state chemistry. Bidentate ligands containing N or O donors especially phenanthroline have been widely used to form complexes with interesting structural motif. Reaction of M（CO）6 （M = Cr, Mo, W） with phenanthroline has been done in 1935 and produced an interesting stereo structure, but the reaction of MoOE（acac）2 （acac = acetylacetonato） with phenanthroline has not been studied yet. So, in this research, first of all MoOE（acac） 2 was prepared, and then it reacted with bidentate nitrogen donor to lead to produce the complex of [MoOEL2] （L = Phen） and different aspects of this complex were studied. This complex is very active and highly selective epoxidation catalyst. The structure of the product was characterized by various spectral techniques such as elemental analysis, IH NMR, 13C NMR and IR spectroscopy.
