Synthesis of electronically and coordinatively unsaturated complexes [Ru2(CO)4(μ-H)(μ-PtBu2)(μ-L2)] (L2 = biphosphanes)

Structural Characterization of N,NBis( diphenylphosphanyl)propylamine

“…It should be noted that the P−N−P angle is only little influenced by coordination as a bridging ligand in a bidentate fashion across a metal−metal bond. The corresponding P−N−P angle in [Ru 2 (CO) 4 (µ-H)(µ-P t Bu 2 ){µ-Ph 2 PN( n Pr)PPh 2 }] was found to be 119.4(1) • [1] and lies therefore closer to that of the free ligand 1.…”

“…After workup, compound 1 was isolated as colorless crystals in yields of about 63 %. This procedure was also used in the preparation of some other N, Nbis(diphenylphosphanyl)amines affording these compounds in similar yields [1]. The title compound 1 was characterized by elemental analysis, NMR spectroscopy ( 1 H, 13 C, and 31 P; see Experimental Section), and single-crystal X-ray diffraction.…”

“…Recently we reported some new coordinatively unsaturated diruthenium complexes of the general formula [ Ru 2 (CO) 4 (µ-H)(µ-P t Bu 2 )(µ-PˆP)] (PˆP = diphosphanes and N-substituted bis(diphenylphosphanyl)amines) [1]. These compounds represent good candidates for the synthesis of some new complexes bearing trans-hyponitrito ligands [2].…”

Activation of C–Cl Bonds: Synthesis and Structural Characterization of [Ru2(μ-Cl)(μ-PtBu2)(μ- Ph2PN(H)PPh2)(CO)4]

“…Solvents were dried according to standard procedures and stored under nitrogen. The starting compounds were prepared following methods reported in the literature: 3 [10], [Ru 2 (µ-H)(µ-P t Bu 2 ){µ-PˆP}(CO) 4 ] (PˆP = Ph 2 PN(Ph)PPh 2 , 5; Ph 2 PN(CH 2 Ph)PPh 2 , 6) [1]. IR spectra were recorded from solid samples with a JASCO FT/IR-460 plus spectrometer equipped with an ATR unit.…”

“…Recently we reported the synthesis of some new coordinatively unsaturated diruthenium complexes [Ru 2 (µ-H)(µ-P t Bu 2 )(µ-PˆP)(CO) 4 ] (PˆP = diphosphanes andN-substituted bis(diphenylphosphanyl)amines) [1]. During studies of the reaction behavior of the parent compound [Ru 2 (µ-H)(µ-P t Bu 2 )(µ-dppm)(CO) 4 ] (1, dppm = Ph 2 PCH 2 PPh 2 ) we observed a spontaneous reaction with chlorinated solvents like chloroform and carbon tetrachloride giving the corresponding coordinatively saturated complex [Ru 2 (µ-Cl)(µ-P t Bu 2 )(µ-dppm)(CO) 4 ] (2) [2].…”