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1996 (1)
1988 (1)
1Author    Wolfgang Bernhardt, Heinrich VahrenkampRequires cookie*
 Title    Hydrierungen und Dehydrierungen im System Benzonitril/Ru 3 (CO)i 2 /Benzylamin Hydrogenations and Dehydrogenations in the System Benzonitrile/Ru 3 (CO) 12 /Benzylamine  
 Abstract    The stepwise interconversions between benzonitrile and benzylamine have been realized in both directions via Ru3 cluster intermediates. The hydrogenation/dehydrogenation system can be entered from Ph-CN, Ru3(CO)12, and H2 yielding HRu3(CO),n(NCHPh) or from PhCH2NH2 and Ru3(CO)12 yielding HRu3(CO)10(NHCH2Ph). These two clusters can be interconverted by thermal hydrogenation and dehydrogenation, with H2Ru3(CO)9(NCH2Ph) as a CO and H2 depen-dent intermediate. The system can be left only towards benzylamine which is formed in small yields from HRu3(CO)10(NHCH2Ph) at high temperatures and under high CO or H2 pressures. 
  Reference    Z. Naturforsch. 43b, 643—647 (1988); eingegangen am 29. Januar 1988 
  Published    1988 
  Keywords    Hydrogenations, Dehydrogenations, Benzonitrile, Benzylamine 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0643.pdf 
 Identifier    ZNB-1988-43b-0643 
 Volume    43 
2Author    PaulK. Baker3, DavidJ M Uldoona, MichaelB. Hursthouseb, SimonJ. Colesb, AidanJ. Laveryc, Andrew ShawcrosscRequires cookie*
 Title    The Crystal Structure and Low Temperature 13C NMR Spectrum of the Seven-Coordinate Complex of Tungsten(II), [WI2(CO)3(NCPh)2]  
 Abstract    The crystal structure of [WI2(C O)3(N C Ph)2] (1) has been determined by X-ray methods. The crystals are orthorhombic, space group Pnam, a = 7.815(3), b = 13.839(5), c = 18.475(3) Ä, Z = 8, R -0.0346 for 1497 observed data. The complex [WI2(C O)3(NCPh)2] has a seven-coordinate geometry, which may be described as a distorted capped octahedron, with the two iodo-ligands mutually trans, while each nitrile is trans to a carbonyl group. The capped octahedral geometry consists of a capping carbonyl (C(10)} on the face defined by 1(1), C(20) and C(20)#. However, the geom etry may also be described as a capped trigonal prism, which has one triangular face occupied by three carbonyl groups and the second triangular face occupied by N (l) , N (l)# and 1(1) atoms, respectively. The iodide 1(2) occupies the capping position on the rectangular face defined by the atoms C(20), C(20)#, N (l), and N (l)# . The low temperature 13C NM R spectrum (203 K, C D 2C12) of 1 shows a single carbonyl resonance at 219.27 ppm which indicates that the com plex is undergoing a rapid fluxional process in solution at 203 K. 
  Reference    Z. Naturforsch. 51b, 263 (1996); received July 7 1995 
  Published    1996 
  Keywords    Crystal Structure, Benzonitrile, Carbonyl, D iiodo, Tungsten(II) 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0263.pdf 
 Identifier    ZNB-1996-51b-0263 
 Volume    51