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1992[X]
1Author    Anja Edelmann, Sally Brooker, N. Orbert Bertel, M. Athias Noltemeyer, H. Erbert, W. Roesky, GeorgeM. Sheldrick, FrankT. EdelmannRequires cookie*
 Title    Strukturuntersuchungen an Diaryldichalkogeniden: Die Molekülstrukturen von |2  
 Abstract    ,4,6-(CF3)3C6H 2S]2,12,4,6-M e3C6H 2TeI2 und |2-M e2N-4,6-(CF3)2C6H 2Te]2 Structural Investigations of Diaryl Dichalcogenides: The Molecular Structures o f [2,4,6-(CF3)3C6HiS],, [2,4,6-Me3C6H ?Te]2 and [2-Me2N-4,6-(CF3)2C6H 2Te]2 The molecular structures o f [2,4,6-(CF3)3C6H 2S]2 (1), [2,4,6-M e3C6H 2Te]2 (2) and [2-Me2N -4,6-(C F 3)2C6H2Te]2 (3) have been determined by X-ray diffraction. Crystal data: 1: orthorhombic, space group P 2,2,2,, Z = 4, a = 822.3(2), b = 1029.2(2), c = 2526.6(5) pm (2343 observed independent reflexions, R = 0.042); 2: orthorhom bic, space group Iba2, Z = 8, a = 1546.5(2), b = 1578.4(2), c = 1483.9(1) pm (2051 observed independent reflexions, R = 0.030); 3: m onoclinic, space group P 2,/c, Z = 4, a = 1118.7(1), b = 1536.5(2), c = 1492.6(2) pm, ß = 98.97(1)° (3033 observed independent reflexions, R = 0.025). 
  Reference    Z. Naturforsch. 47b, 305 (1992); eingegangen am 12. Ju li/9. September 1991 
  Published    1992 
  Keywords    Sulfur, Tellurium, Disulfides, Ditellurides, X -R ay 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0305.pdf 
 Identifier    ZNB-1992-47b-0305 
 Volume    47 
2Author    Joseph Grobe, Anita Krummen, Bernt Krebs, Mechtild LägeRequires cookie*
 Title    Alternativ-Liganden XXVIII [1]  
 Abstract    Neue Komplexe M (CO)4L mit Dipodliganden des Typs R2M (O C H 2PM e2)*(CH2CH2PM e2)2_x (M = Cr, M o, W; M = Si, Ge; R = M e, Ph; x = 0 -2) Alternative Ligands XXVIII [1] Novel Complexes M (CO)4L with Dipod Ligands of the Type R2M '(O C H 2PM e2)v(C H 2C H 2PM e2)2_x (M = Cr, Mo, W; M' = Si, Ge; R -Me, Ph; jc = 0 -2) The coordinating properties o f dipod ligands o f the type R2M (O C H 2PM e2)T (CH 2CH 2PM e2)2_r (R = Me, Ph; M' = Si, Ge; x = 0 -2) have been investigated by the preparation o f the novel rä-M (C O)4L complexes (M = Cr, M o, W). They are obtained under mild conditions in cyclo­ hexane or «-hexane solution by the reaction o f the norbornadiene precursors M (CO)4N B D with the corresponding ligands. In case o f the Ge containing ligands the dilution principle was used to improve the yields o f the mononuclear derivatives. The rate o f the N B D replacement is mainly determined by the central atom M (M o > W > Cr) and only little by R, M' or x . The new com pounds have been characterized by analytical (C, H) and spectroscopic investigations ('H, 3IP N M R , IR, MS). The ligand properties are discussed on the basis o f spectroscopic data (in particular coordination effects) and the molecular structure o f the complexes Cr(CO)4[Ph2Si(OCH 2PM e2)2] (12) and M o(CO)4[Me2G e(C H 2C H 2PM e2)2] (28) obtained by X-ray diffraction studies. 
  Reference    Z. Naturforsch. 47b, 310 (1992); eingegangen am 5. August 1991 
  Published    1992 
  Keywords    D ipod Phosphane Ligands, 'H N M R Spectra, 31P N M R Spectra, X -R ay 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0310.pdf 
 Identifier    ZNB-1992-47b-0310 
 Volume    47 
3Author    Dieter Sellmann+, Werner Prechtel, Falk Knoch, M. Atthias, MollRequires cookie*
 Title    Übergangsmetallkomplexe mit Schwefelliganden, XC* Synthese, Säure/Base-und Redoxreaktionen von [Ni(/N 2 H2 S2 /)1: auf der Suche nach Modellkomplexen für die Nickelzentren in Hydrogenasen und CO- Dehydrogenasen. ('N2 H2 S2'2_ = l,2-Ethandiamin-N,N'-bis(2-benzolthiolat)(2-)) Transition Metal Complexes with Sulfur Ligands, XC* Synthesis, Acid Base and Redox Reactions of [Ni('N2H 2S2')]: A Search for Model Complexes for the Nickel Sites in Hydrogenases and CO-Dehydrogenases. ('N 2H 2S2'2_ = 1,2-Ethanediamine-N,N'-bis(2-benzenethiolate)(2 -) )  
  Reference    Z. Naturforsch. 47b, 1411 (1992); eingegangen am 27. März 1992 
  Published    1992 
  Keywords    Nickel Thiolate-Amine Complexes, Reactions, Thioether-Am ine Ligands, Palladium and Platinum Derivatives, X -R ay 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1411.pdf 
 Identifier    ZNB-1992-47b-1411 
 Volume    47