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'Phosphane Ligands' in keywords Facet   section ZfN Section B  [X]
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1980 (1)
1Author    Joseph Grobe, BerndHeinz SchneiderRequires cookie*
 Title    Elektrochemische Synthesen, V [1] Phosphansubstituierte Metallcarbonyle der Eisengruppe  
 Abstract    The electrochemical synthesis of iron, cobalt, and nickel carbonyl derivatives with phosphane ligands from metal anodes is described. 
  Reference    (Z. Naturforsch. 36b, 8—13 [1981]; eingegangen am 15. Oktober 1980) 
  Published    1981 
  Keywords    Electrochemical Synthesis, Metal Carbonyls, Phosphane Ligands 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0008.pdf 
 Identifier    ZNB-1981-36b-0008 
 Volume    36 
2Author    Joseph Grobe, Heinz ZimmermannRequires cookie*
 Title    Elektrochemische Synthesen, VI [1]  
 Abstract    Elektrochemische Substitution der YIB-Hexacarbonyle M(CO)6 (M = Cr, Mo, W) Electrochemical Syntheses, VI [1] Electrochemical Substitution of VIB-Hexacarbonyls M(CO)6 (M = Cr, Mo, W) The electrochemical substitution of group VIB hexacarbonyls by solvent molecules and/or phosphane ligands is studied in some detail and is found to be a fruitful alternative preparative route to the well-known photochemical reaction. 
  Reference    Z. Naturforsch. 36b, 301—306 (1981); eingegangen am 24. Oktober 1980 
  Published    1981 
  Keywords    Electrochemical Synthesis, Metal Carbonyls, Substitution Products, Phosphane Ligands 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0301.pdf 
 Identifier    ZNB-1981-36b-0301 
 Volume    36 
3Author    Joseph Grobe, Heinz Zimmermann, FrauRequires cookie*
 Title    Elektrochemische Synthesen, VII [1]  
 Abstract    Elektrochemische Substitutionsreaktionen an M(CO)6_n(PR3)M-Komplexen (M = Cr, Mo, W) Electrochemical Syntheses, VII [1] Electrochemical Substitution Reactions of M(CO)6-n(PR3)n Complexes (M = Cr, Mo, W) The principle of electrochemical substitution of metal carbonyls has been applied to monosubstituted derivatives M(CO)5PR3 (M = Cr, Mo, W) with the aim of selective prepa-ration of di-and trisubstituted products M(CO)4(PR3)(PR'3) or M(CO)3(PR3)(PR'3)2. It is shown that, due to simultaneous replacement of CO and PR3 mixtures of products are formed. 
  Reference    Z. Naturforsch. 36b, 482—484 (1981); eingegangen am 24. Oktober 1980 
  Published    1981 
  Keywords    Electrochemical Synthesis, Metal Carbonyl Derivatives, Phosphane Ligands 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0482.pdf 
 Identifier    ZNB-1981-36b-0482 
 Volume    36 
4Author    Conny Vogler, Wolfgang Kaim, H.-D HausenRequires cookie*
 Title    Zweikernige Bisphosphankupfer(I)-Komplexe mit dem 2,2 -Bipyrimidin-Brückenliganden: Strukturelle Analogie zu "Blauen" Kupferzentren und Reduktion zu paramagnetischen Spezies Dinuclear Bis(phosphane)copper(I) Complexes with 2,2'-Bipyrimidine as Bridging Ligand: Structural Analogy to " Blue" Copper Centers and Reduction to Paramagnetic Species  
 Abstract    Dinuclear complexes [(PR3)2C u(//:/74-bpym)Cu(PR3)2](BF4)2 with the bis-chelating bridging ligand 2,2'-bipyrimidine (bpym) and various m onodentate and bidentate phosphanes were synthesized via a four com ponent "self assembly" reaction. The reversible electrochemical reduction to m onocationic radical complexes was studied by cyclic voltammetry and electron spin resonance (ESR). Highly resolved ESR spectra revealed the presence o f the bpym anion radical ligand via resolved hyperfine coupling with 'H, 14N , 31P, 63Cu and 65Cu nuclei. The variation o f phosphane ligands was accompanied by significant changes o f electrochemical potentials which were rationalized considering electronic and structural effects. The configura­ tional flexibility o f Cu(I) in this environment is evident from the X-ray crystal structure ana­ lysis o f [(PPh3)2C u(//:^4-bpym)Cu(PPh3)2](BF4)2 H2O C H 3OH for which the coordination at the metal can be described as 3 + 1 (N N'P + P'), qualitatively similar to the (NN'S + S') arrange­ ment around the type 1 Cu centers o f "blue" copper proteins. Intramolecular cooperative n donor/;: acceptor/^ donor "Sandwich" interactions provide parts o f the driving force for this highly distorted coordination geometry which illustrates the proclivity o f Cu(I) towards such an "entatic state" arrangement. 
  Reference    Z. Naturforsch. 48b, 1470—1480 (1993); eingegangen am 5. Mai 1993 
  Published    1993 
  Keywords    Copper Complexes, Structure, Electrochemistry, ESR Spectra, Phosphane Ligands 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1470.pdf 
 Identifier    ZNB-1993-48b-1470 
 Volume    48 
5Author    Udo Kunze, S.Budhi SastrawanRequires cookie*
 Title    Reaktivität metallorganischer Komplexe mit Zinn-Metall-Bindung, IV [1] S02 -Insertion an phosphinsubstituierten und anionischen Triorganozinn-Komplexen des Chroms, Molybdäns und Wolframs Reactivity of Organometallic Complexes Containing Tin-Metal Bonds, IV [1] SO2 Insertion into Phosphine Substituted and Anionic Triorganotin Complexes of Chromium, Molybdenum and Tungsten  
 Abstract    The trans phosphane and phosphite substituted organotin complexes of molybdenum 1-4 are prepared by thermolysis or photolysis of the tricarbonyl parent compounds. The phosphane complexes 1 and 2 react readily with liquid sulfur dioxide by absorption of 1-3 moles of SO2 depending on temperature. IR and NMR spectra indicate cleavage of tin-carbon bonds only yielding insertion products of the sulfinato-0 type la-c and 2a-c. The phosphite complexes 3, 4 are less reactive and yield a di-insertion 3 a and a mono-insertion compound 4 a. The anionic triphenyltin derivatives of chromium, molybdenum and tungsten 5-7 undergo facile cleavage of 1 (Cr) or 3 (Mo, W) tin-phenyl bonds. The course of SO2 insertion into 1-7 reveals a distinct activation of the Sn-C bond in organotin transition metal complexes by substitution with stronger donor molecules or reduction to anionic species. 
  Reference    Z. Naturforsch. 35b, 421—427 (1980); eingegangen am 14. November/28. Dezember 1979 
  Published    1980 
  Keywords    S02-Insertion, Organotin Complexes, Phosphane Ligand, Phosphite Ligand, Anionic Complexes 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0421.pdf 
 Identifier    ZNB-1980-35b-0421 
 Volume    35 
6Author    Dieter Sellmann, Susanne Emig, FrankW. Heinemann, Falk KnochRequires cookie*
 Title    Ubergangsmetallkomplexe mit Schwefelliganden, CXXXIII [1]. Synthese, Struktur und Eigenschaften neuer Fe11-Komplexe mit [FeN2S2]-Gerüsten Transition M etal Complexes with Sulfur Ligands, C X X X III [1]. Synthesis, Structure, and Properties o f N ew F e1 1 Complexes with [ F e N ^ ] Cores  
 Abstract    In order to obtain suitable precursors for iron complexes that model the reactivity o f the active sites o f nitrogenases, the coordination chemistry of the [Fe('N2H2S2')] fragment was systematically investigated('N2 H2S2'2~ = l,2-ethanediamine-N,N'-bis(2-benzenethiolate)(2-)). One-pot reactions o f FeCl2 -4H20 with the tetradentate amine-thiolate ligand 'N2 H2S2'2_ and CO, PR,, or P(O R) 3 yielded the complexes [Fe(CO)2('N 2 H2S2')] (1), [Fe(CO)(PR3)('N 2H2S2')] 
  Reference    Z. Naturforsch. 53b, 1461—1474 (1998); eingegangen am 9. Juli 1998 
  Published    1998 
  Keywords    Iron Sulfur Complexes, Amine Ligands, Phosphane Ligands, X-Ray Data Cyclic Voltammetry 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-1461.pdf 
 Identifier    ZNB-1998-53b-1461 
 Volume    53