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1993 (1)
1984 (1)
1Author    Peter BoehmRequires cookie*
 Title    R obert Schlögl and H anns  
 Abstract    Intercalation compounds of graphite with SnCl4 have been prepared by reaction in SOCl2/CCl4 or by UV irradiation in CC14 or 1,2-dichloroethane. Mix­ tures of 1st, 2nd, and 3rd stages have been obtained. Chemical analyses and 119Sn Mößbauer spectra indi­ cate that SnCle2^ ions are intercalated. Solvent molecules are co-intercalated. 
  Reference    (Z. Naturforsch. 39b, 112 [1984]; received August 12 1983) 
  Published    1984 
  Keywords    Graphite Intercalation Compounds, Hexachlorostannate, Photochemistry, Tin Tetrachloride 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0112_n.pdf 
 Identifier    ZNB-1984-39b-0112_n 
 Volume    39 
2Author    A. Berthold, K.-J Gabriel, W. SchülkeRequires cookie*
 Title    The Dynamic Structure Factor of LiC 6 and KC 8 : Inelastic Synchrotron X-Ray Scattering Results  
 Abstract    The dynamic structure factor S(q, &>) of electrons in lithium-intercalated graphite (LiC 6) and potassium-intercalated graphite (KC 8) for momentum transfer q || c-axis has been measured by inelastic synchrotron X-ray scattering. The dielectric function s{q, a>) was deduced from the data and compared with e(q, co) of pristine graphite. The main feature in the different Im [e(q, tt>)]-spectra, a more or less intense peak around 14 eV, can be assigned to maxima of the symmetry-projected joint density of occupied and unoccupied electron states near the Fermi level. Knowing the position of the occupied bands by photoemission experi-ments, predictions about the unoccupied n and interlayer states can be made. In the case of LiC 6 , a shift and broadening of the first Im [e(q, a>)]-peak was found, which can be explained by a decrease of the energy of the interlayer-band because of the strong hybridization of this graphite-derived band with the Li metal 2s-band. In the case of KC 8 , a weakening of the first peak of Im [e(q, co)] was observed, which we attribute both to a decreasing overlap of the occupied 7t-derived state with the empty interlayer state and to a change of symmetry of the occupied er-derived states as well as of the empty rc-derived states. 
  Reference    Z. Naturforsch. 48a, 283—288 (1993); received December 30 1991 
  Published    1993 
  Keywords    Inelastic X-ray scattering, Dynamic structure factor, Graphite, Graphite intercalation compounds, Interlayer state 
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 TEI-XML for    default:Reihe_A/48/ZNA-1993-48a-0283.pdf 
 Identifier    ZNA-1993-48a-0283 
 Volume    48