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1996[X]
41Author    O. Schrandt, Hk Müller-BuschbaumRequires cookie*
 Title    Geordnete Metallverteilung in K B a V 0 4 und K S rV 0 4 mit /?-K2S 0 4-Struktur Ordered Metal Distribution in K B a V 0 4 and K S r V 0 4 Showing p -K 2S 0 4 Structure  
 Abstract    Single crystals of K B a V 0 4 (I) and K S rV 0 4 (I I) have been prepared by crystallization from V 20 5 flux. The yellowish crystals show orthorhombic symmetry, space group D'^-Pnma with (I): a = 7.774(2), b = 5.899(1), c = 10.375(2) A , (II): a = 7.400(2), b = 5.812(1), c -9.961(1), Z = 4. Both compounds show an ordered distribution o f K + and Ba2+ and Sr2+ respectively. The different sizes of the K 0 1() and BaOy (S r 0 9) polyhedra are discussed with respect to those of the /3-K2S 0 4 structure, considering the calculations o f the Coulomb terms of lattice energy. 
  Reference    Z. Naturforsch. 51b, 477—480 (1996); eingegangen am 5. September 1995 
  Published    1996 
  Keywords    Potassium, Strontium Barium, Vanadium Oxid, Crystal Structure 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0477.pdf 
 Identifier    ZNB-1996-51b-0477 
 Volume    51 
42Author    S. Frenzen, Hk Müller-BuschbaumRequires cookie*
 Title    Eine silberhaltige Phase eines Oxoruthenats: A g (MN a2,3Ca4,3R u 0 8 A Silver Containing Phase o f an Oxoruthenate: A g 04N a 23Ca43R u O 8  
 Abstract    Single crystals of A g 04Na23Ca43RuO8 have been prepared by heating Na20 2, CaO and ruthenium in closed silver tubes. Silver took part in the reaction. The crystal structure was investigated by X-ray techniques. A g 04N a2.3Ca43R uO 8 crystallizes with orthorhombic sym­ metry, space group D^-Cm m m ; a = 9.255(1), b = 6.683(1), c = 6.696(3) Ä , Z = 2. It shows relations to the sodium chloride structure. A statistical distribution of A g + and N a+ can be separated in micro space by splitting one oxygen position to give a dumb-bell like O -A g -O and an octahedral N a 0 6 coordination. 
  Reference    Z. Naturforsch. 51b, 485—488 (1996); eingegangen am 16. Oktober 1995 
  Published    1996 
  Keywords    Silver, Sodium, Calcium, Ruthenium Oxide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0485.pdf 
 Identifier    ZNB-1996-51b-0485 
 Volume    51 
43Author    Lithiumteilstruktur Von Lithiumnitridtribromid, Und Li6nbr3, Lithiumnitridtriiodid, Li6ni3, Rupert Marx3, Hans Michael, M. AyerbRequires cookie*
 Title    Darstellung und  
 Abstract    Single phase Li6N Br3 was prepared by the reaction of Li3N and dry, OH-free LiBr at 450°C. It is the most bromide rich com pound in the quasi binary system Li3_2.vN 1_*Brv. The crystal structures o f Li6N Br3 and o f isotypic Li6NI3, have been redetermined from neutron powder diffraction data. Both compounds crystallize in the cubic space group Fm3m (No. 225), a(Li6N Br3) = 894.18(7), a(Li6N I3) = 951.7(1) pm with 4 formula units per unit cell. The anion sublattice comprises a rock salt like arrangement of N with one o f the three halogen atoms (H a ll), with the remaining halogen atoms in the resulting N4Hal4 cubes. The structure may be regarded as an ordered A X 3 variation of a body-centered packing. The lithium atoms are disordered over the 96 (distorted) tetrahedral N X 3 holes in such a way that of the four neighbouring, face-sharing NBr3 tetrahedra along an N -H all-connection line only one is occupied. The resulting Li coordination polyhedron around N (and H a ll) is a distorted octa­ hedron with 6 equidistant Li atoms. Hal2 is surrounded by 12 Li atoms. The Li6NHal3 struc­ ture may be regarded as an anti-form of the cryolite structure. 
  Reference    Z. Naturforsch. 51b, 525 (1996); eingegangen am 17. Juli 1995 
  Published    1996 
  Keywords    Lithium Nitride Trihalogenide, Preparation, Crystal Structure 
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 Identifier    ZNB-1996-51b-0525 
 Volume    51 
44Author    Thomas Kräuter, Bert Werner, Bernhard NeumüllerRequires cookie*
 Title    Synthese  
 Abstract    und Eigenschaften von Benzylgallium(indium)-Verbindungen. Die Kristallstrukturen von [(PhCH2)2GaBr]2, [(PhCH2)2GaN(H)f-Bu]2 und [PhCH2InCl2(THF)2] Synthesis and Properties o f Benzylgallium(indium) Compounds. The Crystal Structures o f [(PhCH2)2GaBr]2, [(PhCH2)2GaN(H)r-Bu]2 and [PhCH2InCl2(THF)2] (PhCH2)2GaBr (1) can be obtained by the redistribution reaction of GaBr3 with Ga(CH2Ph)3 in a molar ratio 1:2. Treatment of 1 or (PhCH2)2GaCl with one equivalent of LiN(H)/-Bu gives the diorganogallium amide [(PhCH2)2GaN(H)r-Bu]2 (2). The toluene-insoluble PhCH2InCl2 can be structurally investigated after dissolving in THF and crystallization as [PhCH2InCl2(THF)2] (3). 1 -3 were characterized with NMR, IR and MS techniques as well as by X-ray structure determinations. 1 forms two crystallographic independent dimers while 2 is a centrosymmetric dimer in the solid state. 3 is a monomer with a trigonal-bipyramidal coordination sphere at the indium center. 
  Reference    Z. Naturforsch. 51b, 637—645 (1996); eingegangen am 14. September 1995 
  Published    1996 
  Keywords    Gallium Compounds, Indium Compound, Crystal Structure 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0637.pdf 
 Identifier    ZNB-1996-51b-0637 
 Volume    51 
45Author    Silke Busche, Karsten BluhmRequires cookie*
 Title    Synthese und Kristallstruktur von Lanthanoidzinkboraten L n Z n ^ O jo) mit Ln = Ce, Nd, Tb Synthesis and Crystal Structure o f Rare Earth Zinc Borates LnZn(B5O ]0) with Ln = Ce, Nd, Tb  
 Abstract    Single crystals o f the new compounds LnZn(B5O |0) (Ln = (A) C e3+, (B) N d3+, (C) T b '+) were obtained by using a B 20 3 flux technique. X-ray investigations led to space group C2h-P 2,/n (Nr. 14) with lattice parameters: (A) a = 874.5(1), b = 761.4(1), c = 950.0(1), ß = 92.80(1)°, (B) a = 868.6(2), b = 760.9(2), c = 946.0(2), 0 = 92.9 9 (2)°, (C) a = 858.2(2), b = 760.5(2), c = 939.3(2), ß = 93.56(2)°, Z = 4. The structure is isotypic with C oSm (B 5 O |0) and is characte­ rized by two-dimensional infinite 2 (B 5 O 10)5_ ions. Ln is tenfold coordinated by oxygen, and Zn2+ occupies distorted Z n 0 6 polyfiedra. 
  Reference    Z. Naturforsch. 51b, 671—6 (1996); eingegangen am 26. Oktober 1995 
  Published    1996 
  Keywords    Rare Earth, Zinc, Borate, Crystal Structure 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0671.pdf 
 Identifier    ZNB-1996-51b-0671 
 Volume    51 
46Author    Karsten Bluhm, Andre WieschRequires cookie*
 Title    Synthese und Kristallstruktur von NiHo2(B20 5)2, das erste Nickellanthanoidborat mit einem ^ (B 20 5)4"-Anion Synthesis and Crystal Structure of NiHo2(B20 5)2, the First Nickel Lanthanoid Borates with a (^ (B 20 5)4" A nion  
 Abstract    Single crystals o f N iH o2(B20 5) 2 were prepared by a B20 3 flux-technique in high temperature reactions at 1450 °C and investigated by X-ray diffraction. They crystallize in the space group C 2h-P 2 ,/c (Nr. 14) with a = 451.0(4); b = 724.8(3); c = 938.8(6) pm; ß = 9 1 ,39(1)°; Z = 2. The compound is isotypic to CuTb2(B20 5) 2 as well as to the gadolinite structure (F eY 2 (B e S i0 5)2) and contains a two dimensional infinite anion with the formula 2 (B 2 0 5)4~. The borate layers consist o f four-and eight-membered rings o f edge-sharing B 0 4 tetrahedra. The layers are connected via copper-centered elongated oxygen-octahedra and slightly distorted tetragonal H o 0 8 antiprisms. 
  Reference    Z. Naturforsch. 51b, 677 (1996); eingegangen am 9. November 1995 
  Published    1996 
  Keywords    N ickel, Holmium, Borate, Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0677.pdf 
 Identifier    ZNB-1996-51b-0677 
 Volume    51 
47Author    Angeline Stier, Klaus-Jürgen RangeRequires cookie*
 Title    Dicyanometallate, VII [1] Darstellung und Kristallstruktur von Gadolinium-tris-dicyanoaurat (I), Gd[Au(CN)2]3-2,3H20 Dicyano Metallates, VII [1] Preparation and Crystal Structure o f Gadolinium-tris-dicyanoaurate (I), Gd[Au(CN)2]3 -2,3H20  
 Abstract    The title compound has been prepared by adding a stoichiometric amount of gadolinium nitrate hexahydrate to an aqueous solution of potassium dicyanoaurate(I). Single crystals could be obtained by slow evaporation from the saturated solution. The compound crystallizes hexa-gonally, space group P-62m, with a = 6.6319(6), c = 9.108(2) Ä, c/a = 1.3734 and Z = 1. The structure comprises layers of considerably bent dicyanoaurate groups. The gold atoms form a nearly regular 3.6.3.6 -Kagome net with a layer sequence AA.. and an Au -Au distanceoof 3.316(2) A, i. e. remarkably shorter than that found in KAu(CN)2 (Au -Au = 3.652(1) Ä). Above and below the gold layers, the terminal nitrogen atoms of the dicyanoaurate groups build up a two-dimensional net work in the a,b plane, thereby creating trigonal-prismatic holes, which are occupied by the gadolinium ions. Up to three water molecules per unit cell complete the coordination sphere around the gadolinium ion to form a tricapped trigonal prism. The analogous compounds with Ln = Sm, Eu, Tb and Dy are obviously isostructural with the Gd compound, as can be inferred from preliminary X-ray studies. 
  Reference    Z. Naturforsch. 51b, 698—702 (1996); eingegangen am 13. Oktober 1995 
  Published    1996 
  Keywords    Gadolinium-fm-dicyanoaurate(I), Preparation, Crystal Structure 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0698.pdf 
 Identifier    ZNB-1996-51b-0698 
 Volume    51 
48Author    Cheong-HwaKarsten Park, BluhmRequires cookie*
 Title    Zur Synthese und Kristallstruktur von Bariumboroarsenat Ba(BAs05) mit einem Beitrag über Bariumorthoarsenat Ba3(As04)2 Synthesis and Crystal Structure of Barium Boroarsenate B a(B A s05) with a Contribution on Barium Orthoarsenate Ba3(A s0 4)2  
 Abstract    Single crystals of Ba(BAs05) (I) and Ba3(As04)2 (II) were obtained by melting B20 3, arsenic pentoxide and BaO at 1100°C. Both compounds crystallize trigonally, space groups (I): C3 -P3t (Nr. 144), (II): D3d -R3m (Nr. 166), with the lattice parameters (I): a = 726.7(1), c = 710.6(1) pm, Z = 3 and (II): a = 576.7(1), c = 2116.3(2) pm, Z = 3. Ba(BAsOj) is isotypic to Pb(BAs05) (Stillwellite structure) and Ba3(As04)2 to Ba3(P04)2. The structure of Ba(BAs05) is characterized by helical chains of rings of two borate tetrahedra and one arsenate tetrahedron. Barium is tenfold coordinated by oxygen. A rod-like sequence of coordination polyhedra, A s04-Ba(2)O|0-Ba(1)O|2-Ba(2)O|0-AsO4 is characteristic in the crystal structure of Ba3(A s04)2. 
  Reference    Z. Naturforsch. 51b, 722—726 (1996); eingegangen am 9. November 1995 
  Published    1996 
  Keywords    Barium Arsenic, Borate, Synthesis, Crystal Structure 
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 Identifier    ZNB-1996-51b-0722 
 Volume    51 
49Author    Universität DortmundRequires cookie*
 Title      
 Abstract    Phenylsulfinic acid C6Fr5S 0 2H crystallizes in the orthorombic space group Pna21, a = 734.3(4), b = 579.9(5), c = 1476.5(9) pm, with four formula units per unit cell. The configuration of the sulfur atom is pyramidal. The molecules form infinite chains via strong hydrogen bonds. The Raman spectra of CA H5S 0 2H and C6H5SOCl are reported and discussed. Uber die Kristallstruktur der Phenylsulfinsäure C6H5S 0 2H [11] 
  Reference    Z. Naturforsch. 51b, 739—743 (1996); eingegangen am 22. September 1995 
  Published    1996 
  Keywords    Phenylsulfinic Acid, Crystal Structure, Raman Spectra 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0739.pdf 
 Identifier    ZNB-1996-51b-0739 
 Volume    51 
50Author    Requires cookie*
 Title     
 Abstract    ig h P re ssu re S y n th esis a n d S in g le-C ry stal S tru c tu re R e fin e m e n t o f C alciu m A u ra te (I II) , C a A u 20 4 A n ja L o u zik o v a, K la u s-Jü rg e Single crystals of calcium aurate(III), CaAu20 4, were obtained by high-pressure treatment of a C a0/A u20 3/K 0 2 mixture at 40 kbar, 1200 °C in a modified Belt-type apparatus. The crystals are tetragonal, space group 14j/a, with a = 5.9868(7), c = 10.043(1) A, c/a = 1.678 and Z = 4. CaAu20 4 is isostructural with LaPd20 4, SrAu20 4 and BaAu20 4. Its structure comprises square-planar A u 0 4 groups (< A u -0 > = 2.007 A), which are stacked into columns along [100] and [010], These columns are connected by shared corners forming a three-dimensional framework. The Ca ions are situated in tunnels created by the gold-oxygen partial structure. They are surroun­ ded by eight oxygen atoms (< C a -0 > = 2.490 A) in a slightly distorted dodecahedron. 
  Reference    Z. Naturforsch. 51b, 747—750 (1996); eingegangen am 14. November 1995 
  Published    1996 
  Keywords    Calcium Aurate(III), High-Pressure Synthesis, Crystal Structure 
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 Identifier    ZNB-1996-51b-0747_n 
 Volume    51 
51Author    Z. NaturforschRequires cookie*
 Title     
 Abstract    ie Kristallstruktur von C alcium chrom at(V I), C a C r 0 4 T h e C ry sta l S tru c tu re o f C alcium C h ro m a te (V I), C a C r 0 4 G a b rie le W eber, K lau s-Jü rg en R an g e* 
  Reference    Z. Naturforsch. 51b, 751—753 (1996); eingegangen am 14. November 1995 
  Published    1996 
  Keywords    Calcium Chromate(VI), Crystal Structure, Zircon-Type Structure 
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 Identifier    ZNB-1996-51b-0751_n 
 Volume    51 
52Author    Z. NaturforschRequires cookie*
 Title    Ligand Influences on the Supramolecular Chemistry of Simple Gold(I) Complexes: Mononuclear (Isonitrile)gold(I) Complexes  
 Abstract    A series of (isonitrile)gold(I) complexes has been synthesized: (MeNC)AuX (X = Cl la, I lc), (f-BuNC)AuBr 2b. (PhNC)AuX (X = Cl 3a. Br 3b. I 3c. SCN 3d), (MesNC)AuCl 4a [mes=mesityl], and (Me0 C(0)CH2NC)AuX (X = Cl 5a. Br 5b. I 5c. SCN 5d). The chlorides were prepared by the reaction of (M e2S)AuCl with equimolar amounts (or with an excess) of the corresponding isonitrile. The bromides, iodides and thiocyanates were obtained from the reaction of (RNC)AuCl with K+X -(X = Br, I, SCN) in the two-phase system H2O/CH2CI2. The molecular and crystal structures of la. 2b. 3a-c, 4a, and 5a-c have been determined by X-ray diffraction methods. In the solid state the molecules are aggregated through short A u-A u contacts into dimers (4a and 5c), chains (la , 2b and 3a-c) or sheets (5a and 5b). The influence of the isonitrile and halide ligands on the type and strength of the intermolecular A u-A u contacts is discussed. I n tro d u c tio n 
  Reference    Z. Naturforsch. 51b, 790—800 (1996); received December 22 1995 
  Published    1996 
  Keywords    Gold(I) Complexes, Isonitrile Complexes, Auriophilicity, Crystal Structure 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0790.pdf 
 Identifier    ZNB-1996-51b-0790 
 Volume    51 
53Author    V-Requires cookie*
 Title    Zwei monokline Kupfer-Oxovanadate des Magnesiums mit geordneter Metallverteilung: /w-Mg2CuV20 8 und MgCu2V20 8. Ein Beitrag zur Dimorphie von Mg2CuV2Os Two Monoclinic Copper Oxovanadates of Magnesium Showing Ordered Metal Distribution: m-Mg9CuV-,08 and MgCu  
 Abstract    Single crystals of ra-Mg2CuV20 8 (I) and MgCu2V20 8 (II) have been prepared by solid state reactions. The orange (I) and dark red (II) crystals show monoclinic symmetry, space group C2h -P2,/c, (I): a = 6.167(3), b = 8.172(5), c = 6.400(8) Ä, ß = 116.22(3)°, Z = 2; (II): a = 6.453(1), b = 8.342(2), c = 11.517(2) Ä, ß = 90.44(2), Z = 4. Both compounds show ordered metal distributions and vanadium in tetrahedral coordination by oxygen. (I) is characterized by elongated C u06 octahedra and (II) by trigonal C u 0 5 bipyramids. ra-Mg2CuV20 8 is the low temperature form of the formerly investigated orthorhombic o-Mg2CuV2Ö8. Calculations of the Coulomb parts of the lattice energy of the two crystal forms are discussed. 
  Reference    Z. Naturforsch. 51b, 817—821 (1996); eingegangen am 4. Dezember 1995 
  Published    1996 
  Keywords    Magnesium, Copper, Vanadium Oxide, Crystal Structure 
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 Identifier    ZNB-1996-51b-0817 
 Volume    51 
54Author    S. Frenzen, Hk Müller-BuschbaumRequires cookie*
 Title    Zur Kristallchemie eines Natrium-Cadmium-Oxoiridats: Na3Cd2lr06 On the Crystal Chemistry of a Sodium Cadmium Oxoiridate: Na3C d-Jr06  
 Abstract    Single crystals of Na3Cd2Ir0 6 have been prepared by crystallization from melts in closed silver tubes. The crystal structure was investigated by X-ray techniques. Na^Cd^IrOf, crystallizes with monoclinic symmetry, space group Cih-C2/m; a = 5.663(2), b = 9.783(3), c = 5.689(2) A, ß = 109.95(2)°, Z = 2. It is isotypic to M+5A7+0 6 (M = Li, Na; A = Re, Os) and shows relations to the sodium chloride structure in spite of an ordered distribution of Na+, Cd2+ and Ir5+. 
  Reference    Z. Naturforsch. 51b, 822—825 (1996); eingegangen am 29. November 1995 
  Published    1996 
  Keywords    Sodium, Cadmium, Iridium Oxide, Crystal Structure 
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 Identifier    ZNB-1996-51b-0822 
 Volume    51 
55Author    R.Alf Feldhaus, JensK. Öppe, R. Ain, ErM. AttesRequires cookie*
 Title    Komplexe eines vierzehngliedrigen Tetraazadibenzo  
 Abstract    Makrocyclus. Strukturen des freien und zweifach protonierten Liganden und seiner Nickel(II)-, Kupfer(II)-, Zink(II)-und Palladium(II)-Komplexe C om plexes of a 14-M em bered N 4 D ibenzo M acrocycle. Crystal S tructures of the Free and D ip ro to n ated Ligand and of its N ickel(II), C o p p er(II), Z in k (II) and P alladium (II) C om plexes The synthesis and structural characterisation of complexes of the 14-membered macrocy­ clic trans-N4 dibenzo ligand 5,6,7,8,9,14.15,16,17,18-decahydrodibenzo[e,l][l,4, 8,1 l]-tetraaza-cyclotetradecine (L2) is described. The crystal structures of six compounds were determined by single crystal X-ray diffraction. The free ligand L2 has a saddle-shaped structure with short intramolecular hydrogen bonds. The N —N distances are 289 pm. The diprotonated species [H2L2]2+ has a different conformation due to intra-and intermolecular hydrogen bonds. TTie ligand is folded along an N —N axis in c/s-[Ni(L2)(H 20) 2]2+, but displays a saddle­ shaped structure in the Cu(II), Z n(II) and Pd(II) complexes with a more or less planar arrangem ent of the four N donor atoms. The metal atoms are incorporated within the macro-cyclic cavity in [Cu(L2)(CF3S03)]+ and [Pd(L2)]2+. The metal-to-nitrogen bond lengths herein are rather small. Zn(II) is five-coordinate in [Zn(L2)(Cl)]+. The coordination polyhedron is intermediate between a trigonal bipyramid and a square pyramid. In all complexes the metal-to-ligand distances originating at the nitrogen atoms in /^-position (with respect to the arom a­ tic ring) are significantly shorter then the donor bonds of the 1 anilinic' N atoms. 
  Reference    Z. Naturforsch. 51b, 869—878 (1996); eingegangen am 6. November 1995 
  Published    1996 
  Keywords    Macrocyclic N4-Donor Ligands, Transition Metal Complexes, Crystal Structures 
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 Identifier    ZNB-1996-51b-0869 
 Volume    51 
56Author    D. Trinschek, M. JansenRequires cookie*
 Title    Eine neue M odifikation von Na2 Zn2 0 3 A New M odification o f N a2Z n20 3  
 Abstract    A new modification of Na2Zn20 3 has been synthesized via solid state reaction. According to the single crystal structure determination, the compound crystallizes in the space group P432|2 (No. 96) with lattice parameters a = 6.1812(2), c = 9.4479(4) A, Z = 4. The structure consists of Z n 0 4 tetrahedra connected via edges and corners forming a threedimensional network. The structure can be described as an distorted anti spinel. 
  Reference    Z. Naturforsch. 51b, 917—921 (1996); eingegangen am 24. November 1995 
  Published    1996 
  Keywords    Sodium Zincates, Crystal Structure, Anti Spinei Type 
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 Identifier    ZNB-1996-51b-0917 
 Volume    51 
57Author    O. Laf Walter, G. Ottfried Hüttner, R. Ainer KernRequires cookie*
 Title    D a r s  
 Abstract    t e llu n g u n d C h a r a k t e r is ie r u n g v o n N (C H 2P P h 2)3, N (C H 2P P h 2)3M o (C O)3 u n d [ H N (C H 2P P h 2)3M o (C Ö) 3 ] B F 4 Preparation and Characterisation o f N (C H 2PPh-,)3, N (C H 2P P h i)3M o(C O)3 and [H N (CH 2PPh2)3M o(C O)3]BF4 The synthesis of N(CH2PPh2)3 (1) and its spectroscopic properties are reported. Reaction of N(CH2PPh2)3 with (CH3CN)3M o(CO)3 leads to N(CH 2PPh2)3M o(CO)3 (2). The cationic complex [HN(CH2PPh2)3Mo(CO)3]+ (3) is obtained by protonating the N atom of 2 with aqueous HBF4. The spectroscopic and structural properties of 2 and the cation 3 are compared. The results indicate an interaction of the ligand N atom and the Mo atom through space over more than 350 pm. It is shown from IR data that 2 
  Reference    Z. Naturforsch. 51b, 922—928 (1996); eingegangen am 18. Januar 1996 
  Published    1996 
  Keywords    Tripod Ligands, Phosphorus Ligands, Molybdenum Complexes, Crystal Structure 
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 Identifier    ZNB-1996-51b-0922 
 Volume    51 
58Author    C. W. Adewitz, HkM. Üller-BuschbaumRequires cookie*
 Title    Synthese und Struktur eines Strontium -V anadyl-Phosphats: Sr2( V 0 ) (P 0 4)2 Synthesis and Structure o f a Strontium Vanadyl Phosphate: Sr2(V 0 )(P 0 4)2  
 Abstract    Dark green single crystals of Sr2(VO)P2Ox have been prepared by solid state reactions in closed quartz tubes. X-ray investigations led to monoclinic symmetry, space group C2h-I2/c/, a = 6.744(4), b = 15.866(4), c = 7.032(2) Ä, ß = 115.41(2), Z = 4. Sr2(VO)P2O s is isotypic to Sr2(VO)V2Os and shows V4+ in split positions. The split positions are in non-centric octahedral coordination forming a short vanadium to oxygen distance typical for the vanadyl group. The crystal chemistry of the monovanadyl orthophate Sr2(VO)P2O x is discussed considering related divanadyl phosphates. 
  Reference    Z. Naturforsch. 51b, 929—933 (1996); eingegangen am 17. Januar 1996 
  Published    1996 
  Keywords    Strontium, Vanadium, Phosphorus, Oxygen, Crystal Structure 
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 Identifier    ZNB-1996-51b-0929 
 Volume    51 
59Author    C. W. Erner1, E. K. Em Nitza, H. W. Orzalab, S. TrojanovaRequires cookie*
 Title    Synthese und Kristallstruktur von Ba(H S04)2(H2S 0 4)3 und Sr(H S04)2(H2S 0 4) Synthesis and Structure o f B a (H S 0 4)2(H 2S 0 4)3 and S r(H S 0 4)2(H 2S 0 4)  
 Abstract    From the binary systems M 2S 0 4/H 2S 0 4 (M = Ba. Sr), two new hydrogen sulfates, (Ba(HS0 4)2(H 2S0 4)3 and S r(H S 04)2(H 2S 0 4), have been synthesized and structurally char­ acterized. Ba(HS0 4)2(H2S0 4)3 crystallizes in the orthorhombic space group P 2 12 12 , with unit cell parameters a = 4.680(1), b = 11.267(2), c = 29.188(6)A, Z = 4. B a 0 9 trigonal prismatic polyhedra with Ba-O distances of 2.68 -3.02 A from nine different S 0 4 tetrahedra are connected via common bases and build "isolated" columns consisting of O-S-O bridged double chains along the .r-axis. H S 0 4 and H2S 0 4 tetrahedra are linked via hydrogen bonds to form columns. S r(H S 04)i(H TS04) crystallizes in the triclinic space group P i with unit cell parameters a = 5.971(1), b = 8.468(2), c = 10.226(2)A, a = 81.71(3), ß = 83.30(3), 7 = 70.69(3)°, Z = 2. Sr is coordinated by nine oxygen atoms from seven different S 0 4 tetrahedra with S r-0 distances of 2.47 -2.84 A. The S r0 9 polyhedra build layers consisting of O-S-O bridged chains. Three crystallographically different S 0 4 tetrahedra are linked via hydrogen bonds to form a kind of flattened cylinder along the .v-axis. 
  Reference    Z. Naturforsch. 51b, 952—958 (1996); eingegangen am 15. Januar 1996 
  Published    1996 
  Keywords    Barium Hydrogen Sulfate Strontium Hydrogen Sulfate, Synthesis, Crystal Structure 
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 Identifier    ZNB-1996-51b-0952 
 Volume    51 
60Author    Z. NaturforschRequires cookie*
 Title    Zwei Metasilicate mit Vierer-Einfach-Ketten: Hochdrucksynthese und Strukturverfeinerung von Sr2(VO)2 Si4O i2 (Haradait) und Sr2(Ti0)2Si40 12  
 Abstract    Two M etasilicates w ith Vierer Single Chains: H igh-Pressure Synthesis and Structure R efinem ent o f Sr-,(V 0)2Si40 12 (H aradaite) and Sr2(TiO)2Si4O i2 Thom as Berger, K laus-Jürgen Range* Single crystals o f Sr2(V 0)2Si40 |2 could be obtained by high-pressure high-temperature reaction of a SrSiCVSiÖ 2/V 205 mixture in a modified Belt-type apparatus. The green crystals 
  Reference    Z. Naturforsch. 51b, 1099—1103 (1996); eingegangen am 1. März 1996 
  Published    1996 
  Keywords    Metasilicates, Vierer Single Chains, High-Pressure Synthesis, Crystal Structure 
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 Identifier    ZNB-1996-51b-1099 
 Volume    51 
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