Go toArchive
Browse byFacets
Bookbag ( 0 )
'Cobalt Complexes' in keywords Facet   Publication Year 1994  [X]
Results  1 Item
Sorted by   
Publication Year
1Author    Z. NaturforschRequires cookie*
 Title    Chemie polyfunktioneller Moleküle, 114 [1]  
 Abstract    Synthese und Struktur eines ionischen und nichtionischen, cyclischen Carbaphosphazens und eines Cobalt(III)phosphazen-Komplexes C hem istry of Polyfunctional M olecules, 114 [1] Synthesis and Structure of an Ionic and N on Ionic Cyclic C arbaphosphazene and of a C o b alt(III)phosphazene Com plex Jochen E llerm ann3 *, Jörg S u tter3, Falk A. K noch3, M atthias M oll3, W alter B au e rb Reaction of Ph2 P -N -P (P h 2) -N -(Ph2)PCoP(Ph2) -N -P (P h 2) -N -PPh2 (1) in CH2 C12 with benzimidazole yields (CH2 -PPh2 = N -PPh2 = N -PPh2)+C l" ([4]+C L). The salt [4]+BPh4" has been prepared in THF by metathesis of [4]+C l_ with N aBPh4. D eprotonation of the cationic ring in [4]+BPh4_ was accomplished using l,8-diazabicyclo[5.4.01 7 ]undec-7-ene and resulted in the six-membered carbacyclophosphazene CH=PPh2 -N = P P h 2 -N = P P h 2 (6). Treating 1 with 8 -hydroxyquinoline in CH2 C12 yields the octahedral c/s-complex (N 0) 2 CoP(Ph2) -N -P (P h 2) -N -P P h 2 (7) (N O = 8 -oxyquinolinate group). The com ­ pounds [4]+BPh4~, 6 and 7 are characterized by their IR, Raman, 3 1 P{1H) NM R, 1 3 C{1 H} N M R , !H NMR and mass spectra. Crystals suitable for X-ray structure analyses have been obtained for [4]+BPh4_ and_7x0.5 CH2 C12. The colourless plates of [4]+BPh4_ crystallize in the triclinic space group P I, with the lattice constants a = 1172.7(3), b = 1326.2(3), c = 1806.1(6) pm; a = 100.79(2), ß = 103.71(3), y = 108.18(2)°. The black blocks o f 7 x 0 .5 C H 2 C12 crystallize in the monoclinic space group P 2 x!c with the lattice constants a = 1159.0(10), b = 2008.9(10), c = 2034.6(12) pm; ß = 105.86(5)°. 
  Reference    Z. Naturforsch. 49b, 1763—1773 (1994); eingegangen am 25. April 1994 
  Published    1994 
  Keywords    Cyclic Carbaphosphazene Systems, Cobalt Complexes, Syntheses, NM R Spectra, X-Ray 
  Similar Items    Find
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1763.pdf 
 Identifier    ZNB-1994-49b-1763 
 Volume    49