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'Chelate Ligands' in keywords Facet   Publication Year 1981  [X]
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1981[X]
1Author    Udo Kunze, Antonios AntoniadisRequires cookie*
 Title    Phosphinsubstituierte Chelatliganden, II [1] Thiocarbamoylphosphinsulfid-und -oxid-Komplexe des Mangans und Rheniums Phosphine Substituted Chelate Ligands, II [1] Thiocarbamoylphosphine Sulfide and Oxide Complexes of Manganese and Rhenium  
 Abstract    Thiocarbamoylphosphine sulfides la-c and oxides 2a-c are ambidentate chelating ligands which may form monomeric or dimeric complexes with carbonylmetal halides. The reaction of la-c with ClMn(CO)s and ClRe(CO)s yields the monomeric cw-tetracarbonyl complexes 3a-c and 4a-c with S,S'-coordination. The phosphine oxides 2a-c first form tetracarbonyl complexes which dimerize spontaneously under loss of CO to give the anfi-/ac-tricarbonyl complexes 6a-c and 6 a with bridging three-coordinate sulfur. On refluxing in n-hexane solution, 8a-c and 4b, c are converted into the corresponding dimers 7a-c and 8 b, c. Dissolving of 7 b, c in CH2C12 leads to re-formation of 8 b, c, the free ligands lb, c and inorganic manganese compounds. 
  Reference    Z. Naturforsch. 36b, 1117—1124 (1981); eingegangen am 21. Mai 1981 
  Published    1981 
  Keywords    Chelate Ligands, Thiocarbamoylphosphine Sulfide, Thiocarbamoylphosphine Oxide, Manganese Complexes, Rhenium Complexes 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-1117.pdf 
 Identifier    ZNB-1981-36b-1117 
 Volume    36 
2Author    Udo Kunze, Antonios AntoniadisRequires cookie*
 Title    Phosphinsubstituierte Chelatliganden, III [1] r/ 5 -Cyclopentadienyleisencarbonyl-Koraplexe mit Thiocarbamoylphosphin-, -phosphinsulfid-und -phosphinoxid-Liganden Phosphine Substituted Chelate Ligands, III [1] r/ 5 -Cyclopentadienyliron Carbonyl Complexes with Thiocarbamoyl-Phosphine, -Phosphine Sulfide and -Phosphine Oxide Ligands  
 Abstract    The reactions of N-silylated and free diphenylphosphino thioformamides, Ph 2 PC(S)NRR' (R = Ph, Me, Et; R' = MeaSi, H), with CpFe(CO)2l yield, by displacement of one equiva-lent CO, both red-brown P,S-coordinated chelate complexes 1 a-c and green P-coordinated iodo complexes 2a-c. With thiocarbamoylphosphine sulfides, Ph 2 P(S)C(S)NHR (R — Ph, Me), the S,S'-coordinated chelate complexes 3a, b are obtained. The corresponding phos-phine oxides only form deeply coloured, weak 1/1 adducts 4a, b with CpFe(CO)2l. The course of the nucleophilic substitution of CpFe(CO) 2 X (X = Cl, Br, I) by N-silyl phos-phino thioformamides reveals a significant dependence on the halogen employed. For X = Cl, elimination of RNCS and formation of the cationic diiron complex [CpFe(CO)2]2~ PPh2 + Cl _ (5 a) takes place, whereas forX = Brno reaction occurs at room temperature. Mechanistic reasons for this unexpected behaviour are discussed. 
  Reference    Z. Naturforsch. 36b, 1588—1594 (1981); eingegangen am 27. Juli 1981 
  Published    1981 
  Keywords    Chelate Ligands, Cyclopentadienyliron Complexes, Thiocarbamoylphosphine, Thiocarbamoylphosphine Sulfide, Thiocarbamoylphosphine Oxide 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-1588.pdf 
 Identifier    ZNB-1981-36b-1588 
 Volume    36