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'2' in keywords Facet   section ZfN Section B:Volume 042  [X]
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1987 (4)
1Author    Richard Neidlein, Dagmar Knecht, Alfred Gieren, Catalina Ruiz-PérezRequires cookie*
 Title      
 Abstract    The synthesis of 1 by reaction of phenanthro[9,10-c]-l,2,5-selenadiazole with ethylmagnesium-bromide and TeCI 4 is described; the X-ray structure analysis is reported. 
  Reference    (Z. Naturforsch. 42b, 84—90 [1987]; eingegangen am 9. August 1986) 
  Published    1987 
  Keywords    Chalkogen-Diimides, 1, 2, 5-Telluradiazole, X-Ray 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0084.pdf 
 Identifier    ZNB-1987-42b-0084 
 Volume    42 
2Author    Josef Hahn, Tina NatanielRequires cookie*
 Title    Synthese und Eigenschaften von 3,6-Diorgano-3,6-dithio  
 Abstract    l,2,4,5,3,6-tetrathiadiphosphorinanen; eine neue Möglichkeit zur Knüpfung von S—S-Bindungen Synthesis and Properties of 3,6-D iorgano-3,6-dithio-l,2,4,5,3,6-tetrathiadiphosphorinanes; a New Possibility of Forming S—S Bonds 
  Reference    Z. Naturforsch. 42b, 1263 (1987); eingegangen am 15. Mai 1987 
  Published    1987 
  Keywords    3, 6-Diorgano-3, 6-dithio-l, 2, 4, 5, 3, 6-tetrathiadiphosphorinanes, 3, 5-Dimethyl-3, 5-dithio-l, 2, 4, 3, 5-trithiadiphospholan, Heterocycles, Formation of S -S Bonds 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-1263.pdf 
 Identifier    ZNB-1987-42b-1263 
 Volume    42 
3Author    Wim Vreugdenhil, MarcelF J Schoondergang, JaapG. Haasnoot, Jan ReedijkRequires cookie*
 Title    Magnetic and Spectroscopic Properties of Metal(II) Thiocyanate Compounds with 3,4-Dialkyl Substituted 1,2,4-TriazoIes  
 Abstract    Syntheses, spectroscopic and magnetic properties are described of a series of metal(II) thio-cyanate compounds with the asymmetric ligands 3-methyl-4-ethyl-l,2,4-triazole and 3-methyl-4-;-butyl-l,2,4-triazole. A dinuclear structure is proposed for the manganese, cobalt and nickel compounds based on the magnetic behaviour as well as on spectroscopic and analytical data. These compounds show antiferromagnetic interaction in the temperature range 4—80 K. The zinc compounds appear to be mononuclear, whereas a chain-like structure is proposed for the cad-mium compounds. 
  Reference    Z. Naturforsch. 42b, 791—795 (1987); received January 19 1987 
  Published    1987 
  Keywords    Asymmetric 1, 2, 4-Triazoles, Magnetic Exchange, Binuclear Compounds, Thiocyanate 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0791.pdf 
 Identifier    ZNB-1987-42b-0791 
 Volume    42 
4Author    Klaus Stumpf, Walter Siebert, Roland Köster, Günter SeidelRequires cookie*
 Title    Reaktionen von 2,3-Dihydro-l,3-diborolen mit Kalium und Iodmethan. Charakterisierung der Produkte als (C 5 H 5 )Co-Komplexe [1]  
 Abstract    The reactions between 2,3-dihydro-l,3-diborole derivatives 1 and potassium in tetrahydrofuran yield dark brown solutions. Without elimination of hydrogen, 1.4 to 1.8 moles of potassium are consumed by one mole of 1. Reduced 1 and iodomethane react to give methylated products, identified by GC/MS studies. Complexation with (C 5 H 5)Co(C 2 H 4) 2 leads to the cyclopentadienyl-cobalt complexes 2, iso-2, 3, and 4, of which iso-2 is a new cobalt-hydride sandwich. Methylation reactions of the cobalt sandwich anions (2-H)~ are reported. 
  Reference    Z. Naturforsch. 42b, 186—190 (1987); eingegangen am 4. Juli 1986 
  Published    1987 
  Keywords    2, 3-Dihydro-l, 3-diboroles, Cobalt Sandwich Complexes, Cobalt-Hydride Complexes 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0186.pdf 
 Identifier    ZNB-1987-42b-0186 
 Volume    42