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1985 (1)
1984 (1)
1982 (1)
1Author    Hartmut MaischRequires cookie*
 Title    Die Stabilisierung von P(NH2)Hal2 (Hai = Cl, Br, I) und P(NHMe)2G als Komplexliganden  
 Abstract    The Stabilisation of P(NH2)Hal2 (Hal = Cl, Br, I) and P(NHMe)2Cl as Complex Ligands The phosphanes P(NH2)Hal2 and P(NHMe)2Cl are stabilised as ligands in (CO)5MoP(NH2)Hal2 [Hai = Cl (2), Br (3), I (4)] and (CO)5MoP(NHMe)2Cl (10) by reactions of (CO)5MoP(NH2)3 (1) with HHal or of (CO)5MoP(NHMe)3 (8) with HCl, respectively. 4 decomposes at room temperature and reacts with i-BuNH2 to give, (CO)5MOP(NH-<-BU)2NH2 (6). 1 and HI form (CO)5MoPI3. 3 can also be prepared from 2 with HBr, 4 from 2 and 3 with HBr and HI, respectively. The reactions of 2-4 with NR3 produce polymers, whereas the reaction of 3 with pyridine leads to (COjsMoNCsHs. The mixtures (CO)5MoP(NHMe)Br2/(CO)5MoPBr3 and (CO)5MoP(NH-t-Pr)2Cl/ (CO)5MoP(NH-i-Pr)Cl2 are isolated from reactions of 8 with HBr and of 9 with HI, and 9 reacts with HBr to give (CO)sMoPBr3. (CO)sMoP(NHMe)I2 is formed in small amounts by the reaction of 8 with HI, the main product is an insoluble solid, which is probably the impure intermediate [(CO)5MoP(NHMe)(NH2Me)2] 2 +2I-. Reaction of 10 with NEt3 leads to the formation of the dinuclear complex 12 in which the new diazadiphosphetidine [MeNHP-NMe]2 functions as a bridging ligand between two (CO)sMo units. 
  Reference    (Z. Naturforsch. 37b, 61—67 [1982]; eingegangen am 1. Oktober 1981) 
  Published    1982 
  Keywords    Ligand Reactions, Hydrogen Halides, Phosphanes 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0061.pdf 
 Identifier    ZNB-1982-37b-0061 
 Volume    37 
2Author    KlausR. Pörschke, RichardM. Ynott, Carl Krüger, M. J. Rom, Herrn ProfRequires cookie*
 Title    Tris(phosphan)-Nickel(0)-Ethen  
 Abstract    Komplexe (dmpe)(PR3)Ni(C2H4). Molekülstruktur des (dmpe)(P0 3)Ni(C2H4) Tris(phosphane)-nickel(0)-ethene Complexes (dm pe)(PR 3)Ni(C2FI4). M olecular Structure of (d m p e)(P 0 3)Ni(C2F[4) Synthesis and properties of tris(phosphane)(ethene)nickel(0) complexes (dmpe)(PR3)Ni(C2H 4) (R = CH3 (4), c-C6H u (5), and C6H5 (6)) are reported. In solution. 4—6 are thermolabile and undergo ligand exchange reactions affording tetrakis(phosphane)nickel(0) and bis(phosphane)-(ethene)nickel(O) complexes. 1H , 13C, and 31P NMR data of 4 —6 confirm the tetrahedral geo­ metry around nickel. For 6 , the crystal and molecular structure has been determined by X-ray crystallography. 
  Reference    Z. Naturforsch. 39b, 1076—1081 (1984); eingegangen am 1. März 1984 
  Published    1984 
  Keywords    Ethene, Nickel(O), Phosphanes, NMR Characterization, X-Ray 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-1076.pdf 
 Identifier    ZNB-1984-39b-1076 
 Volume    39 
3Author    KlausR. Pörschke, Richard Mynott, Klaus Angermund, ++, Carl KrügerRequires cookie*
 Title    Neue Bis(phosphan)-nickel(0)-alkin-Komplexe New Bis(phosphane)-nickel(0)-alkyne Complexes  
 Abstract    (Me 3 P)2Ni(C 2 H4) (5) and (dmpe) 2 Ni2(C 2 H4)3 (6) react with various alkynes including ethyne (acetylene) and 1-alkynes to form the crystalline compounds (Me 3 P) 2 Ni(C 2 RR'), (dmpe)Ni(C 2 RR'), and (dmpe)2Ni 2 (C 2 R2) 2 (R.R' = H, Me, Ph). Structural assignments were made on the basis of : H, I3 C, and 31 P NMR data. The crystal and molecular structure of (dmpe)Ni(C 2 Ph 2) (17) has been determined by X-ray crystallography. 
  Reference    Z. Naturforsch. 40b, 199—209 (1985); eingegangen am 15. Oktober 1984 
  Published    1985 
  Keywords    Alkynes, Nickel(O), Phosphanes, NMR Spectra, X-Ray 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0199.pdf 
 Identifier    ZNB-1985-40b-0199 
 Volume    40