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'Chirality' in keywords Facet   section ZfN Section B  [X]
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1993 (1)
1978 (1)
1Author    Dainis Dakternieks, Gerd-Volker Röschenthaler, Reinhard SchmutzlerRequires cookie*
 Title    Synthesis of Chiral and Non-chiral Phosphites Containing the Hexafluoroisopropoxy Group  
 Abstract    A series of new phosphorus (III) compounds containing the hexafluoroisopropoxide group has been synthesised by reacting halophosphines with lithium hexafluoroisoprop-oxide. The phosphites Bu<PX[OCH(CF3)2] (where X = F, Cl), Bu«MeP[OCH(CF3)2] and C6HsPF[OCH(CF3)2] each contain a chiral center at phosphorus. 
  Reference    Z. Naturforsch. 33b, 507—510 (1978); received February 13 1978 
  Published    1978 
  Keywords    Phosphites, Halophosphites, Chirality, Lithium Hexafluoroisopropoxide 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0507.pdf 
 Identifier    ZNB-1978-33b-0507 
 Volume    33 
2Author    Dieter Seilmann, Helge Friedrich, Falk KnochRequires cookie*
 Title    Transition Metal Complexes with Sulfur Ligands, XCIX  
 Abstract    Form ation and Structure of [Fe('S4')]4. A Rem arkable Tetram erization of Homochiral [Fe('S4')] Complex Fragments ('S4'2-= l,2-Bis(2-m ercaptophenylthio)ethane(2-)) In MeOH/THF solution, Fe(II) ions and the tetradentate thioether-thiolate 'S4'2"([l,2-Bis(2-mercaptophenylthio)ethane(2-)]) slowly form the tetrameric [Fe('S4')]4 1. The crystal structure of 1 THF -2MeOH was determined by X-ray structure analysis. Chiral 1 crystallizes as a pair of enantiomers each of which consist of four homochiral [Fe('S4')] fragments bridged via /i2-and //3-S(thiolato) donors; stereochemical aspects o f the enantiospecific tetramerization of [Fe('S4')] fragments are discussed. In strong polar solvents such as dimethylformamide, dis­ sociation of [Fe('S4')]4 into [Fe('S4')]2 fragments is indicated by the formation o f [Fe(CO)('S4')]2 upon reaction with CO. 
  Reference    Z. Naturforsch. 48b, 1675—1680 (1993); eingegangen am 9. Juli 1993 
  Published    1993 
  Keywords    Iron Sulfur Complex, Chirality, X-Ray 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1675.pdf 
 Identifier    ZNB-1993-48b-1675 
 Volume    48