Abstract
ORTEP diagram of 2L1 complex with thermal probability. [Display omitted]
► A new series of ruthenium(II) complexes of type [RuCl2(dppb)(N–N)] were synthesized now. ► Elemental analysis, IR, FAB-MS, NMR, electronic spectral techniques and TG/DTA were investigated. ► XRD crystal data of 2L1 have confirmed the proposed structural formula of such complexes. ► Synthesized complexes have showed very good catalytic activity in the hydrogenation reactions of Cinnamic aldehyde.
The preparation of new three trans-[RuCl2(dppb)(N–N)] with mixed diamine (N–N) and 1,4-bis-(diphenylphosphino)butane (dppb) ligands, starting from RuCl2(PPh3)3 as precursor is presented. The complexes are characterized on the basis of elemental analysis, IR, 1H, 13C and 31P{1H}NMR, FAB-MS, TG/DTA and single crystal X-ray diffraction studies. Complex (2L1) crystallizes in the monoclinic unit cells with the space group P21. The catalysts are evaluated for their Cinnamic aldehyde hydrogenation. The catalysts show excellent activity and selectivity for the unsaturated carbonyl compound under mild conditions.