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1999 (1)
1Author    Markus Leirer, Günther Knör, Amd VoglerRequires cookie*
 Title    Synthesis and Spectroscopic Properties of 1,2-Diiminetricarbonyl- rhenium(I)chloride Complexes with Aliphatic Diimines (or 1,4-Diaza-l,3-butadienes) as Ligands  
 Abstract    Re(l,2-diimine)(CO)3Cl complexes with the aliphatic bidentate ligands diiminosuccino-dinitrile (DISN), benzilbisanile (BEAN), bisacetylbisanile (BABA), and benzildiimine (BE­ DIM) are reported. The compounds show Re(I) to 7r*(diimine) metal-to-ligand charge transfer (MLCT) absorptions in the visible spectral region. The energy of these MLCT-transitions de­ creases in the series BABA > BEDIM > BEAN > DISN, depending on the 7r* acceptor properties of the coordinated diimine ligands. The maxima of these CT bands undergo a solvent-dependent shift (negative solvatochromism), which indicates a partial charge redistribution in the excited state. The compounds are not photoluminescent at room temperature and 77 K. 
  Reference    Z. Naturforsch. 54b, 341—344 (1999); received December 11 1998 
  Published    1999 
  Keywords    Charge Transfer, Rhenium Complexes, 1, 4-Diaza-l, 3-butadienes, Solvatochromism 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0341.pdf 
 Identifier    ZNB-1999-54b-0341 
 Volume    54