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2000 (2)
1Author    G. N. Chekhova, S. D. Goren, JuH. Krieger, D. Linsky, V. Lusternik, A. M. Panich, A. R. Semenov, A. VoronelRequires cookie*
 Title    Specific Heat and Nuclear Quadrupole Resonance Study of Thiourea-Hexachloroethane Inclusion Compound  
 Abstract    Specific heat and 35 C1 nuclear quadrupole resonance (NQR) measurements of the channel thio-urea-hexachloroethane inclusion compound are presented. Experimental NQR data confirm the results of atom-atom potential calculations that the guest sublattice comprises two types of nearly commensurate finite molecular chains, having different structure and separated by domain walls. Specific heat measurements show phase transition near 96 K. 
  Reference    Z. Naturforsch. 55a, 335—338 (2000); received August 23 1999 
  Published    2000 
  Keywords    NQR, Specific Heat, Inclusion Compound, Thiourea, Hexachloroethane 
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 TEI-XML for    default:Reihe_A/55/ZNA-2000-55a-0335.pdf 
 Identifier    ZNA-2000-55a-0335 
 Volume    55 
2Author    L. Guibé, A. Péneau, M. Gourdji, A. PanichRequires cookie*
 Title    Thiourea and Thiourea Inclusion Compounds. A 14 N NQR Investigation  
 Abstract    A reinvestigation of the nitrogen-14 NQR in thiourea has permitted to record, apparently for the first time, the resonances above 169 K. The first order and second order of the transitions at 169 K and 202 K, respectively, appear clearly from the temperature dependence of the resonance frequencies; the mod-ulated structure, incommensurate or commensurate, is also seen on the 14 N NQR spectrum. This study is the first step of a new investigation of thiourea and its inclusion compounds. 
  Reference    Z. Naturforsch. 55a, 331—334 (2000); received October 13 1999 
  Published    2000 
  Keywords    Thiourea, Nitrogen-14 NQR, Phase Transitions, Commensurate, Incommensurate Modu-lations, Inclusion Compounds 
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 TEI-XML for    default:Reihe_A/55/ZNA-2000-55a-0331.pdf 
 Identifier    ZNA-2000-55a-0331 
 Volume    55