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1994 (1)
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1Author    M. Schweizer, Hk Müller-BuschbaumRequires cookie*
 Title    Zur Verbindungsbildung von MeO : M203, Teil III Zur Kenntnis von BeGa204 Compound Formation Me0:M203, Part III BeGa2C>4  
 Abstract    A new compound, BeGa204, was prepared by high temperature reaction between BeO and Ga203. X-ray single crystal investigations show a hitherto unknown structure type of M2+M23+04 compounds. BeGa204 crystallizes with hexagonal symmetry a = 775.0 and c = 298.0 pm, space group C£h-P63/m. Be 2+ and Ga 3+ are statistically distributed and are surrounded by 0 2--tetrahedra. 
  Reference    Z. Naturforsch. 34b, 1067—1069 (1979); eingegangen am 10. Mai 1979 
  Published    1979 
  Keywords    Beryllium, Gallium, Oxide, X-ray, Crystal Structure 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-1067.pdf 
 Identifier    ZNB-1979-34b-1067 
 Volume    34 
2Author    Hk Müller-Buschbaum, S. FrenzenRequires cookie*
 Title    Zur  
 Abstract    Kenntnis von EuBeGd20 5 mit einem Beitrag über Phasen der Zusammensetzung M1 _xM'A .BeLn20 5 : Ca0,4Sr0,6BeSm2O5, Ba0,25Ca0,75BeNd2O5 und Ba0,36Sr0,64BeNd2O5 On E uB eG d20 5 and on Phases of the Composition M 1_^M'xBeLn20 5: Ca0,4Sr06BeSm2O 5, Bao,2sCao,75 BeNd2 0 5 and Ba0 3 6 Sr0,64BeNd2O5 Single crystals of (I): E uB eG d20 5, (II): Ca0,4Sr0ABeSm 20 5, (III): Ba0,25 Ca()75B eN d2O 5 and (IV): Ba<)3 6Sr()64B eN d2O s were prepared by (I): plasma torch and (II)-(IV): C 0 2-LASER technique. X-Rayo investigations lead to (I) monoclinic (space group C 2h-P2j/c, a = 7.126, b = 6.457, c = 9.394 A, ß = 90.40°) and (I I)-(I V) orthorhombic symmetry (D ^ -P n m a). (II: a = 9.454, b = 7.142, c = 6.490 A; III: a = 9.508, b = 7.188, c = 6.531 A; IV: a = 9.642, b = 7.295, c = 6.614 A). In contrary to the phases M j^ M '^ B eL ^ O s, E uBeG d2Os is characterized by an ordered distribution of Eu2+ and G d3+ inside o f the Kagome network. 
  Reference    Z. Naturforsch. 49b, 919 (1994); eingegangen am 28. Februar 1994 
  Published    1994 
  Keywords    Alkaline Earth, Beryllium, Rare Earth, Oxide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0919.pdf 
 Identifier    ZNB-1994-49b-0919 
 Volume    49 
3Author    M. Aria Maneva, M. Itko Georgiev, Norbert Lange, HeinzDieter LutzRequires cookie*
 Title    Zur Kenntnis von Berylliumiodat und -periodat - Röntgenographische, IR-und Raman-spektroskopische Untersuchungen On Beryllium Iodates and Periodates -X-Ray, IR , and R am an Studies  
 Abstract    Phase relationships and therm al decomposition of beryllium iodates and periodates were studied by X-ray and spectroscopic (IR, Ram an) measurements. B e(I03)2-4 H 20 , B e(I03)2, and Be(H4I 0 6)2-4 H 20 have been characterized. Be(H4I 0 6)2-4 H 20 (hitherto claimed in the lit­ erature to be a metaperiodate) dehydrates on heating with decomposition to form B e(I03)2. Anhydrous beryllium periodate was not obtained. On dehydration of B e(I0 3)2-4 H 20 , an­ hydrous B e(I03)2 is formed, which decomposes into BeO, I2, and 0 2 on further heating. 
  Reference    Z. Naturforsch. 46b, 795—799 (1991); eingegangen am 27. November 1990 
  Published    1991 
  Keywords    Iodates, Periodates, Beryllium, Decomposition, IR Spectra, Ram an Spectra 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0795.pdf 
 Identifier    ZNB-1991-46b-0795 
 Volume    46