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'force constants' in keywords Facet   Publication Year 1993  [X]
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1Author    Lothar Ohse, Mehmet Somer, Wolfgang Blase, Gerhard CordierRequires cookie*
 Title    Verbindungen mit SiS2-isosteren Anionen i  
 Abstract    [AlX4/2 3 ] und i |InP4/23 ]: Synthesen, Kristallstrukturen und Schwingungsspektren von Na3|AlX2], K2Na[AlX2] und K3IInP2] (X = P, As) Com pounds with SiS2 Isoelectronic Anions l [A1X4 23-] and i [InP4/23-]: Synthesis, Crystal Structures and Vibrational Spectra of N a3[AlX2], K 2Na[AlX2] and K 3[InP2] (X = P, As) The title compounds were prepared from stoichiometric mixtures o f the elements or from alkali metals (Na, K), NaX (KX) and MX (M = Al, In; X = P, As) at 1000 K. The crystal structures (Ibam, No. 72) are characterized by infinite chains o f edge sharing tetrahedra j, [MX4;,3'] (M = Al, In; X = P, As) which are isoelectronic to SiS2. The vibrational spectra can be interpreted with respect to the symmetry P(2/m 2/c) 42/ m -D 4h of the isolated polymeric chain ][M X 4(23"]. The assignment of the observed frequen­ cies is supported by a normal coordinate analysis using the fragment method. 
  Reference    Z. Naturforsch. 48b, 1027—1034 (1993); eingegangen am 29. März 1993 
  Published    1993 
  Keywords    Zintl Phases, Preparation, Crystal Structure, V ibrational Spectra, Force Constants 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1027.pdf 
 Identifier    ZNB-1993-48b-1027 
 Volume    48