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1986[X]
1Author    Klaus Angerm, Borislav Bogdanović, GudrunK. Oppetsch, Carl Krüger, RichardM. Ynott, Manfred Schwickardi, Yi-H Ung TsayRequires cookie*
 Title    Magnesiumorganische Innerkomplexe, Teil I [1] Bis(dialkylaminoalkyl)-und Bis(alkoxybutyl)magnesium-Verbindungen Organomagnesium Inner C om plexes, Part I [1] Bis(dialkylaminoalkyl)-and Bis(alkoxybutyl)m agnesium Compounds  
 Abstract    A series of magnesium inner complexes has been prepared by reacting M gH2 (prepared by homogeneous catalysis) with dialkylallyl-and -3-butenylam ines and -3-butenylethers in the p re­ sence of catalytic amounts of Z rC l4. The m onom eric nature of bis(4-m ethoxybutyl)m agnesium has been confirmed by X-ray diffraction. The analogous syntheses of bis(3-alkoxypropyl)magnesium com pounds failed: cleavage of the allyl ether with elimination of propene occurred. This cleavage reaction is accelerated by catalytic amounts of NiCl2 or ZrC l4. 
  Reference    Z. Naturforsch. 41b, 455 (1986); eingegangen am 21. N ovem ber 1985 
  Published    1986 
  Keywords    Magnesium, Inner Complexes, Crystal Structure, X-Ray 
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 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0455.pdf 
 Identifier    ZNB-1986-41b-0455 
 Volume    41 
2Author    Gerhard Bremer3, Roland Boeseb, Mustafa Keddoa, Thomas Kruck3Requires cookie*
 Title    Dialkylchalkogenidverbrückte Carbonylzweikernkomplexe des Typs  
 Abstract    [M]2ER2 mit M = {CpMn(CO)2} und {Cr(CO)5}; E = S, Se, Te; R = Me oder R2 = (CH2)3 bzw. (CH2)4; Röntgenstrukturanalyse von [CpMn(CO)2]2S(CH2)3 Dialkylchalcogenide-Bridged Dinuclear Carbonyl Complexes of the Type [M]2ER2 with M = {CpMn(CO)2} and {Cr(CO)5}; E = S, Se, Te; R = Me or R2 = (CH2)3, (CH2)4; X-Ray-Structure Analysis of [CpMn(CO)2]2S(CH2)3 The reaction o f C pM n(C O)2T H F or C r(C O)sT H F with alkylchalcogenides E R 2 (E = S, Se, Te; R = M e or R 2 = (C H 2)3, (C H 2)4) in the molar ratio of 2:1 gives alkylchalcogenide-bridged dinuclear com plexes [C pM n(C O)2]2E R 2 and [C r(C O)5]2E R 2. The heteronuclear com plex C p (C O)2Mn — (u-SM e2) -C r (C O) 5 can be synthesized by reacting C pM n(C O)2SM e2 with C r(C O)5TH F. X-ray structure analysis o f the com pound [CpM n(CO)2]2S(C H 2) 3 dem onstrates the bridging character o f the alkylchalcogenides. 
  Reference    Z. Naturforsch. 41b, 981—986 (1986); eingegangen am 24. Februar/25. April 1986 
  Published    1986 
  Keywords    Synthesis, C halcogenide-Bridged Carbonyl C om plexes, X-Ray 
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 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0981.pdf 
 Identifier    ZNB-1986-41b-0981 
 Volume    41 
3Author    Michael Zettlitzer, Heindirk Tom Dieck, Lutz StampRequires cookie*
 Title    Reactions of N-Silated Endiamines, I Transition Metal Complexes of l,3-Diaza-2-sila-4-cyclopentenes  
 Abstract    1,3-Diaza-2-sila-4-cyclopentenes 1 (D ISC), which are electron-rich and easily oxidizable ole­ fins, form strongly coloured, but poorly soluble 1:1 adducts with cuprous halides, while silver trifluoromethylsulfonate oxidizes 1. Much more soluble and again strongly coloured complexes of stoichiometry LPdX2, (L)15PdX2 and L 2PdX2 are formed from 1 and palladium halides. The well-crystallizing adduct (PdCl-,-L)o 3a was chosen for an X-ray structure analysis (monoclinic, space group P 21c; a = 10.215(3), b = 14.681(3), c -23.642(5) A , ß = 101.31(2)°; Z = 8 ; R = 0.054), which revealed an almost planar D ISC ligand in an oblique ?z2(C=C)-coordination relative to the 7r-plane. Structural data and rather peculiar spectroscopic properties encourage a comparison of 3a with complexes, in which an electron-rich olefin is split to give a bis(carbene) ligand system. The electronic reasons for the splitting of electron-rich olefins at d8 metals are discussed under symmetry considerations. 
  Reference    Z. Naturforsch. 41b, 1230—1238 (1986); eingegangen am 12. Februar/9. Juni 1986 
  Published    1986 
  Keywords    Endiamines, Palladium Complexes, X-Ray, Electron-Rich Olefins, Carbene-Type Complexes 
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 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-1230.pdf 
 Identifier    ZNB-1986-41b-1230 
 Volume    41 
4Author    Lutz Dahlenburg, Constanze Prengel, Nils HöckRequires cookie*
 Title    Oligophosphan-Liganden, XX [1] Reduktion von C 0 2 am Trisphosphanrhodium(I)-Komplex RhCl[f-BuP(CH2CH2CH2PMe2)2] Oligophosphine Ligands, X X [1] Reduction of Carbon D ioxide by the Trisphosphinerhodium (I) Complex RhCl[r-BuP(CH2CH2CH2PM e2)2]  
  Reference    Z. Naturforsch. 41b, 718—721 (1986); eingegangen am 28. Februar 1986 
  Published    1986 
  Keywords    C arbon Dioxide, Bis(3-dim ethylphosphinopropyl)fm -butylphosphine, Rhodium Complexes, NMR Spectra, X-Ray 
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 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0718.pdf 
 Identifier    ZNB-1986-41b-0718 
 Volume    41 
5Author    WolfPeter Fehlhammer, Ulrike PlaiaRequires cookie*
 Title    Metallkomplexe funktioneller Isocyanide, XIII [1] Bis(oxazolidin-2-yIiden)-Komplexe von Mangan(I) und Nickel(II) Metal Complexes of Functional Isocyanides, XIII [1] Bis(oxazolidin-2-ylidene) Complexes of Manganese(I) and Nickel(II)  
 Abstract    The dicarbene com plexes, M nB r(C O)3(C N (H)C H ^C FI.O) 7 (1) and 
  Reference    Z. Naturforsch. 41b, 1005 (1986); eingegangen am 21. Februar 1986 
  Published    1986 
  Keywords    Organometallic Chemistry, Functionalized Isocyanides, Activation by Coordination Carbene C om plexes, X-Ray 
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 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-1005.pdf 
 Identifier    ZNB-1986-41b-1005 
 Volume    41