Six-membered tetracarbonylmanganese(I) and -rhenium(I) metalacycles containing the [Ph2P(Se)NP(Se)Ph2] ligand: solution and solid state characterization

Alkali Metal and Alkaline Earth Metal Complexes with the Bis(borane‐diphenylphosphanyl)amido Ligand – Synthesis, Structures, and Catalysis for Ring‐Opening Polymerization of ϵ‐Caprolactone

“…[11,12] The di-chalcogenoimido-diphosphinto bismuth compounds, Bi[(EPR 2 ) 2 N] 3 (E = S, Se; R = Ph, iPr), were found to be ideal www.zaac.wiley-vch.de ARTICLE for use as single-source precursors as they are air-stable and readily obtainable in good synthetic yields. [13] The diselenoimido-diphosphinato ligand can also stabilize a wide range of metal coordination spheres including alkali metals, [14][15] group 12, [16] group 13, [17,18] group 14, [19,20,16] group 15, [21] group 16, [22,23] transition metals (V and Cr, [24] Mn [25,26] and Re, [27] Ru, Rh, Ir, [15,28,29] Os, [30] Co, [31] group 10: Ni, [32] Pd, [32,[33][34][35] Pt, [14,30,34] and group 11: [35] , and rare earth metals. [36,37] This could be due to the flexible nature of the ligand moieties, which adopt to several metallacyclic rings depending upon the coordination to the central metal atom.…”

Stepwise phosphine sulfide formation and metal-bridging reaction of tetradentate and tridentate phosphine ligands on palladium(II)

“…Some phosphine sulfides have been employed as monodentate or bidentate ligands for some metal ions [1][2][3][4][5][6], and we have applied multidentate phosphine sulfide ligands to the Pd(0) catalyzed CÀC coupling reaction to stabilize the zerovalent oxidation state of palladium [7]. However, so far, kinetic study on phosphine sulfide formation reactions of phosphine complexes has not been reported.…”

“…In order to confirm the reaction mechanism of the phosphine chalcogenide formation and phosphine-bridging reaction, we have carried out kinetic studies on the phosphine sulfide formation reaction of the Pd(II) complexes with pp 3 considering that sulfur, which has moderately high solubility in nonpolar solvents, is suitable reactant for kinetic experiments. Furthermore, we have compared the phosphine-bridging reaction of the square-planar Pd(II) complex with bis [2-(diphenylphosphino)ethyl]phenylphosphine (p 3 ) to that of the trigonal-bipyramidal complex with pp 3 . As a result, we have found interesting difference in the isomerization mechanism of the phosphine-bridged polynuclear complex between the p 3 and pp 3 [13] and SHELXL-97 [14] software.…”

“…Furthermore, we have compared the phosphine-bridging reaction of the square-planar Pd(II) complex with bis [2-(diphenylphosphino)ethyl]phenylphosphine (p 3 ) to that of the trigonal-bipyramidal complex with pp 3 . As a result, we have found interesting difference in the isomerization mechanism of the phosphine-bridged polynuclear complex between the p 3 and pp 3 [13] and SHELXL-97 [14] software. All non-hydrogen atoms were refined anisotropically and hydrogen atoms were included in calculated positions.…”

Synthesis and structural studies of phosphorus carbonyl manganacycles containing the tetraphenyldiselenoimidodiphosphinato ligand

“…The fact is that coordination of the [N(EPPh 2 ) 2 ] À (E = O, S, Se) anions has been extensively studied over the last years. It has been found that the ligand N(SePPh 2 ) 2 binds a wide range of atoms varying from main group elements (K [2], group 12 [3]; Al and Ga [4], In [5], Sn [3,6], Pb [3], Sb [7], Bi [5,7], Se [8] and Te [9]), transition metals (V and Cr [10], Mn [11a] and Re [11], Ru [12], Os [13a,13b], Co [14], Rh [2,12b,12c], Ir [12b,15], group 10: Ni [16], Pd [2,12c,16,17], Pt [2,16,17], and group 11: Cu [14,18a] Ag [18a,18b,18c] Au [18b,18d,18e]) to rare-earth metals: Y [19], La, Gd, Er, Yb [20], and Sm [21]. Although the list of N(SePPh 2 ) 2 [22] complexes is certainly long, it is noteworthy the scarcity of metal carbonyl complexes with the N(SePPh 2 ) 2 fragment (or [N(EPPh 2 ) 2 ] À ; E = O, S for that matter).…”