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'l3 C NMR Spectra' in keywords
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1988 (3)
1Author    HelmutG. Alt, HeidiE. Engelhardt, Abbas Razavi, MarvinD. Rausch, RobinD. RogersRequires cookie*
 Title    Pentamethylcyclopentadienyl-, Acetylcyclopentadienyl- und Indenyl-dicarbonyl-AcetylenkompIexe des Vanadiums. Molekülstruktur von C 9 H 7 V(CO) 2 PhC 2 H Pentamethylcyclopentadienyl, Acetylcyclopentadienyl and Indenyl Dicarbonyl Acetylene Complexes of Vanadium. Molecular Structure of C 9 H 7 V(CO) 2 PhC 2 H  
 Abstract    The photo-induced reaction of C,Me s V(CO) 4 (1), (C s H 4 COMe)V(CO) 4 (2) and C,H 7 V(CO) 4 (3) with acetylenes R'C.R 2 (R 1 , R 2 = H, Me, Ph) yields the substitution products CsMesV(CO).R'C,R 2 (4), (C 5 H 4 COMe)V(CO) 2 R'C 2 R 2 (6) and C v H 7 V(CO) 2 R'C 2 R 2 (7). One CO ligand of complexes 4 can be substituted by PMe, affording complexes of the type C 5 Me s V(CO)(PMe 3)R'C 2 R 2 (5). The acetylene complexes 4—7 are characterized by their IR, 'H, 13 C and 5I V NMR as well as their mass spectra. In these compounds the alkyne ligand shows a hindered rotation around the metal alkyne bond axis. The rotation barrier (zIG* = 40—50 kJ/mol) is higher than in the corresponding cyclopentadienyl complexes. An X-ray crystal structure analysis of C 9 H 7 V(CO) 2 PhC 2 H indicates an orientation of the alkyne-C —C-axis in the symmetry plane of the C 9 H 7 V(CO) 2 fragment. The phenyl substituent is pointing away from the metal and the indenyl ligand. 
  Reference    Z. Naturforsch. 43b, 438—444 (1988); eingegangen am 3. August 1987 
  Published    1988 
  Keywords    Acetylene Complexes, 5I V NMR Spectra, 'H NMR Spectra, l3 C NMR Spectra 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0438.pdf 
 Identifier    ZNB-1988-43b-0438 
 Volume    43 
2Author    Bernd WrackmeyerRequires cookie*
 Title    Vergleich der NMR-Parameter von Phosphaalkinen und Nitrilen Comparison of NMR Parameters of Phosphaalkynes and Nitriles  
 Abstract    The values 7(15 n= 13 c) from 1s n satellites in the l3 c nmr spectra for two nitriles [qh,-c=n, (ch3)2ch — c=n] have been determined and <3(' s 
  Reference    Z. Naturforsch. 43b, 923—926 (1988); eingegangen am 7. März 1988 
  Published    1988 
  Keywords    Phosphaalkynes, Nitriles, 3I P NMR Spectra, l3 C NMR Spectra, |S N NMR Spectra 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0923_n.pdf 
 Identifier    ZNB-1988-43b-0923_n 
 Volume    43 
3Author    Henry Strasdeit, Siegfried PohlRequires cookie*
 Title    Achtfachkoordination von Cadmium(II) und sekundäre Metall—Ligand-Bindungen in [Cd(N0 3 ) 2 (C 12 H 22 N 6 )] und [Cd(C 12 H 22 N 6 ) 2 ](BF 4 ) 2 Eight-Coordination of Cadmium(II) and Secondary Metal —Ligand Bonds in [Cd(N0 3 ) 2 (C 12 H 22 N 6 )] and [Cd(C 12 H 22 N 6 ) 2 ](BF 4 ) 2  
  Reference    Z. Naturforsch. 43b, 1579—1588 (1988); eingegangen am 19. luli 1988 
  Published    1988 
  Keywords    Cadmium Complexes, Eight-Coordination, Tetradentate Ligand, X-Ray, l3 C NMR Spectra, I13 Cd NMR Spectra 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-1579.pdf 
 Identifier    ZNB-1988-43b-1579 
 Volume    43