1/30/2024 0 Comments Zh strukt khim journalA.Szabo, N.S.Ostlund, Modern Quantum Chemistry, Dover, New York (1996).Ģ2. F.Plasser, H.Pasalic, M.H.Gerzabek et al., Angew. D.Stuck, T.A.Baker, P.Zimmerman et al., J. K.Takatsuka, T.Fueno, K.Yamaguchi, Theor. M.Damnjanovic, I.Milosevic, Line Groups in Physics: Theory and Applications to Nanotubes and Polymers, Springer, Heidelberg (2011).ġ2. Computational Methods for Large Systems: Electronic Structure Approaches for Biotechnology and Nanotechnology, ed. (1972) ĭ.M.Cvetkovic, M.Doob, H.Sachs, Spectra of Graphs, Theory and Application, Academic Press, New York (1980).ħ. F.Harary, Graph Theory, Addison-Wesley, Reading, Mass. P.Kasteleyn, Graph Theory and Theoretical Physics, Academic Press, London (1967).Ĥ. Zachariasen, Acta Crystallogr., 1954, 7, 792 CrossRef CAS. Harris, Acta Crystallogr., 1959, 12, 172 CrossRef CAS. Chudnovskaya, Radiokhimiya, 1975, 17, 929 Search PubMed Sov. Halides of the Lanthanides and Actinides, Wiley, London, 1968, Siegel, Acta Crystallogr., 1956, 9, 827 CrossRef CAS. Thesis (in Greek), Chemical Engineering Department, University of Patras, 1999, containing spectra and XI Symposium on Molten Salts, ECS, 1998, 98-11, 545 Search PubMed Kawamura, Denki Kagaku Oyobi Kogyo Butsuri Kagaku, 1975, 43, 195 Search PubMed Chem. Kuroda, Denki Kagaku Oyobi Kogyo Butsuri Kagaku, 1969, 37, 417 Search PubMed Chem. Kuroda, Denki Kagaku, 1973, 41, 427 Search PubMed. Suglobova, Radiokhimiya, 1980, 22, 265 Search PubMed Sov. Suglobova, Radiokhimiya, 1974, 16, 886 Search PubMed Sov. Kuroda, Denki Kagaku, 1968, 36, 297 Search PubMed. Soc., Faraday Trans., 1998, 2605 RSC and refs. Papatheodorou, in Advances in Molten Salt Chemistry, eds. The vibrational modes and the inferred structure of the glass are similar to those of the melt. Glassy ThCl 4 was formed by slow cooling of the melt. The known ionic character of these melts suggests that the chain length is rather small and that most probably the species have low n values ( e.g. It appears that in mixtures rich in ThCl 4 edge bridging of thorium( IV) octahedra occurs yielding chain species of the type 2– and 2+ where the end Th atoms of the chain are six- and four-fold co-ordinated for the anion and cation respectively. With increasing ThCl 4 mole fraction above 0.3 the frequency of the ν 1(A 1g) band increases continuously reaching its maximum (≈340 cm –1) in pure molten ThCl 4. The data indicate that in molten mixtures rich in alkali-metal chloride the predominant species are the ThCl 6 2– octahedra in equilibrium with the ThCl 7 3– pentagonal bipyramid. The spectral changes upon melting the binary compounds A 2ThCl 6, A 3ThCl 7 and the pure crystalline ThCl 4 were also measured. The complete composition range has been studied for all systems at temperatures up to 960 ☌. Raman spectra of molten ThCl 4–ACl (A = Li, Na, K or Cs) mixtures have been measured.
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