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'Barium' in keywords Facet   Publication Year 1998  [X]
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1998[X]
1Author    B. Wulff, Hk Wedel, Müller-BuschbaumRequires cookie*
 Title    Zur Kristallchemie von Telluraten mit Mn2+ im kationischen und anionischen Teil der Kristallstruktur: (Mn2?4Cuo,6)Te06, Ba2M nTe06 und Pb(Mn0,5 Te0,5 )O3 On the Crystal Chemistry of Tellurates Containing Mn2+ in the Cationic and Anionic Part of the Crystal Structure: (Mn2 4Cu0 6)Te06, Ba2MnTe06 and Pb(Mn0 5Te0 5) 0 3 L  
 Abstract    Single crystals of (Mn2.4Cu0 6)Te06 (I), Ba2MnTe06 (II) and Pb(Mn0 5Te0 5) 0 3 (III) have been prepared by crystallization from fluxes. X-ray investigations led to rhombohedric sym­ metry (I): R3, (II): R3m with the trigonal lattice constants (I): a = 8.826(1), c = 10.687(2) Ä, Z = 2. (II): a = 5.817(8), c = 14.244(3) A, Z = 3. Compound (III) crystallizes with cubic symmetry P43m, a = 4.045(3) A, Z = 1. (I) is the first example of a manganese(II) tellurate and belongs to the structure type of A3X 0 6 compounds like (Mn2In)Sb06, Mn3W 0 6 and Ca3U 0 6. (II) exemplifies an ordered and (III) a disordered variation of the perovskites. 
  Reference    (Z. Naturforsch. 53b, 49—52 [1998]; eingegangen am 15. Oktober 1997) 
  Published    1998 
  Keywords    Manganese, Copper, Lead, Barium, Tellurates 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0049.pdf 
 Identifier    ZNB-1998-53b-0049 
 Volume    53 
2Author    R. Rettich, Hk Müller-BuschbaumRequires cookie*
 Title    Zur Kristallchemie der Silber-Mangan-Oxovanadate Ag2BaMnV20 8 und (AgCa2)Mn2(V 04)3 On the Crystal Chemistry of the Silver Manganese Oxovanadates Ag?BaMnV?Oo and (AgCa2)Mn2(V 0 4)3  
  Reference    Z. Naturforsch. 53b, 291—295 (1998); eingegangen am 12. Januar 1998 
  Published    1998 
  Keywords    Barium, Calcium, Manganese, Vanadium Oxide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0291.pdf 
 Identifier    ZNB-1998-53b-0291 
 Volume    53 
3Author    M. Staack, Hk Müller-BuschbaumRequires cookie*
 Title    Ba4M n2Ag20(As04)4? ein Barium-Mangan-Oxid-Arsenat mit nichtlinearen O-Ag-O-Hanteln. Ba4Mn2Ag2 0 (As0 4 )4, a Barium Manganese Oxide-Arsenate Showing Nonlinear O-Ag-O Dumbbells  
 Abstract    Single crystals of Ba4Mn2 Ag20 (A s04)4 have been prepared by solid state reactions using me­ tallic silver as reactant. X-ray techniques led to monoclinic symmetry, space group D2h-P2,/m, 
  Reference    Z. Naturforsch. 53b, 512—516 (1998); eingegangen am 29. Januar 1998 
  Published    1998 
  Keywords    Barium, Manganese, Silver, Oxide-Arsenate, Crystal Structure 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0512.pdf 
 Identifier    ZNB-1998-53b-0512 
 Volume    53 
4Author    Hk Sfreddo, Müller-BuschbaumRequires cookie*
 Title    Indium partiell in tetraedrischer Sauerstoffkoordination in BaIn2Zn30 7 . Eine Betrachtung zum Ba2Ln2Zn80 13/BaLnAlZn3 0 7 -Typ Partial Tetrahedral Oxygen Coordination of Indium in BaIn2Zn30 7. A Consideration of the Ba2Ln2Zn80 13/BaLnAlZn30 7 Type O  
 Abstract    Single crystals of BaIn2Zn30 7 have been prepared by solid state reaction and crystallization from flux. X-ray investigations led to hexagonal symmetry, space group C6V-P6 3mc, lattice constants a = 6.342(1), c = 10.282(1) A, Z = 2. BaIn2Zn30 7 shows tetrahedral positions statistically occupied by In3+ and Zn2+. The crystal structure is isotypic to Ba2Ln2Zn80 13 and BaLnAlZn30 7. A discussion of the related compounds is given. 
  Reference    Z. Naturforsch. 53b, 517—520 (1998); eingegangen am 29. Januar 1998 
  Published    1998 
  Keywords    Barium, Indium, Zinc, Oxide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0517.pdf 
 Identifier    ZNB-1998-53b-0517 
 Volume    53 
5Author    Matthias Westerhausena, Mathias Kroftaa, Nils Wiberga, Jörg Knizeka, Heinrich Nötha, Arno PfitznerbRequires cookie*
 Title    Tetrazinn(II)-und Bariumtrizinn(II)-tetrakis[/i3 -tri-ter/-butyIsilylphosphan- diid]-Verbindungen mit einem Tetrametallatetraphosphacuban-Gerüst Tetratin(II) and Barium Tritin(II) Tetrakis[//3-tri-rm-butylsilylphosphandiide] Compounds with a Tetrametallatetraphosphacubane Core  
 Abstract    The metalation o f tri-terr-butylsilylphosphane with bis[bis(trimethylsilyl)amino]stannylen yields nearly quantitatively the tetrameric tin(II) tri-terf-butylsilylphosphandiide with a central Sn4 P4 cubane moiety. Barium bis[tri-/£Tf -butylsilylphosphanide] is accessible via the reaction o f tri-?£T/-butylsilylphosphane with barium bis[bis(trimethylsilyl)amide] in the molar ratio 2 : 1 . This phosphanide reacts with bis[bis(trimethylsilyl)amino]stannylen to give barium tritin(II) tetrakis[/i3-tri-ter?-butylsilylphosphandiide]. Crystallographic data of 1: P 21212), T = 193 K, a = 1532.6(3), b = 2120.2(4), c = 2194.0(5) pm, V = 7.129(3) nm3, Z = 4, R, = 0.0360 (9132 observed data [I > 2a(f)]), wR2 = 0.1064 (all data); crystallographic data of 3: P 2,/c, T= 193 K, a = 1927.35(1), b = 1799.27(2), c = 2201.35(2) pm, ß = 93.010(1)°, V= 7.6234(1) nm3, Z = 4, R, = 0.0321 (11993 observed data [I > 2cr(/)]), wR2 = 0.0772 (all data). 
  Reference    Z. Naturforsch. 53b, 1489—1493 (1998); eingegangen am 3. Juli 1998 
  Published    1998 
  Keywords    Arene Complexes, Barium, Heterocubanes, Phosphorus, Tin 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-1489.pdf 
 Identifier    ZNB-1998-53b-1489 
 Volume    53 
6Author    M. Ichael Schmidt, Annette Schier, Hubert SchmidbaurRequires cookie*
 Title    Magnesium Bis[D(-)-Mandelate] Dihydrate and Other Alkaline Earth, Alkali, and Zinc Salts of Mandelic Acid  
 Abstract    , and zinc D(-)mandelates have been prepared from the parent mandelic acid and equivalent quantities (1:1 / 2:1) of the corresponding metal hydroxides in water. Colourless polycrystalline products are obtained from the aqueous solutions by evaporation of the solvent. The alkali, ammonium and strontium salts are anhydrous, the calcium and barium salts are monohydrates, the magne­ sium salt is a dihydrate, and the zinc salt a trihydrate. The crystal and molecular structure of the magnesium salt has been determined by single crystal X-ray diffraction methods (mono­ clinic, space group P2i, Z = 2). The lattice contains isolated complexes with hexacoordinate magnesium atoms chelated by two mandelate anions through one of their carboxylate oxygen atoms and the alcoholic hydroxyl group. Two water molecules in cis position are completing the octahedral coordination sphere. [MgtQITO^MfTO^] is thus a true mononuclear magnesium complex. Its stability and non-hygroscopic properties suggest its use as a magnesium and/or mandelate drug. 
  Reference    Z. Naturforsch. 53b, 1098—1102 (1998); received July 23 1998 
  Published    1998 
  Keywords    Mandelic Acid, Magnesium Mandelate, Alkaline Earth Mandelates, Alkali Mandelates, Zinc Mandelate Lithium, sodium, potassium, ammonium, magnesium, calcium, strontium, barium 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-1098.pdf 
 Identifier    ZNB-1998-53b-1098 
 Volume    53