| In this thesis, complexes [(η6-C6H6)RuCl(μ-BDNA)(μ-Cl) RuCl(η6-C6H6)]BF4 (2) and a series of RuCl2(diphosphine)(diamine) complexes such as RuCl2(PPh3)2(L1-5) (1L1-5) [L1 = Ethylenediamine; L2 = N,N'-Dimethylethylenediamine; L3 = cyclohexanodiamine; L4 = o-phenylenediamine; L5 = 4-(trifluoromethyl)-1,2-phenylenediamine, RuCl2(BISBI)2-(L1-5) (2L1-5), [BISBI = 2, 2'-bis((diphenylphosphino) methyl) -1, 1'-biphenyl)], RuCl2(BDPX)(L1-5) (3L1-5) have been prepared. All of the complexes have been determined by 31P, 1H-NMR and elemental analyses. Single-crystal X-ray structural investigations show [( η6-C6H6)RuCl( μ-BDNA)(μ-Cl) RuCl( η6-C6H6)]BF4 belongs to monoclinic system, P21/n space group with Z = 4, a = 14.498 A, b = 15.644 A, c = 20.788 A, a =90°, β= 103.404(3)°, ? = 90°. Complex RuCl2(BDPX)(L2)(6)belongs to Triclinic system, P-1 space group with Z = 2, a = 10.6453AA, b = 11.5320 A, c = 16.099 A, a = 76.964(2)°, β= 74.981(3)°, ? = 69.982(3)°. With the exception of RuCl2(BDPX)(L4-5), RuCl2(PPh3)2(L4-5) and RuCl2(BISBI)2(L4-5), all of the other complexes are highly catalytical activity and selectivity in the hydrogenation of benzylacetone. The detail results of hydrogenation of benzylacetone catalyzed by complex RuCl2(BISBI)2(L3) are reported and the conversion for the formation of the 4-benzyl-3-buten-2-ol were about 99% under mild conditions. The refluences of different diphosphines and diamines have been also investigated in the hydrogenation of benzylacetone. When the diamine were L1, L2, L3, L5, changing of diphosphines would not affect the catalytical activity and selectity for the hydrogenation C=O double bond under the experimental conditions. In catalytic hydrogenation benzylacetone. The activities of complexes bearing diphosphine and ethylenediamine or N, N'-Dimethylethylenediamine are higher than that bearing o-phenylenediamine or 4-(trifluoromethyl)-1, 2-phenylenediamine. The complexes with cyclohexanodiamine could achieve the highest activity and selectivity in C=O bond. |
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