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1996 (295)
121Author    Wolfgang Petz, Frank WellerbRequires cookie*
 Title    Uber die Reaktion von  
 Abstract    KPPh2 mit Fe(CO)5 und Fe(CO)4CS; Molekülstruktur von [(CO)4FePPh2]' On the Reaction of KPPh-, with Fe(CO)5 and Fe(CO)4CS; Molecular Structure of [(CO)4FePPh2]~ Crystal Structure, Phosphinocarbonyl, (Diphenylphosphido)tetracarbonyliron, Low Temperature 11P NMR Fe(CO)5 reacts with [PPh2]~ in THF at -78 °C to give the adduct [(CO)4FeCOPPh2]~ 
  Reference    Z. Naturforsch. 51b, 715—721 (1996); eingegangen am 28. August 1995 
  Published    1996 
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 Identifier    ZNB-1996-51b-0715 
 Volume    51 
122Author    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 
123Author    J. Beck, P. Biedenkopf, K. Müller-BuschbaumRequires cookie*
 Title    Synthese und Kristallstruktur von (TeCl3)2MoCl6 und /?-(TeCl3)2ReCl6 Synthesis and Crystal Structure of (TeCl3)2M oCl6 and /?-(TeCl3)2ReCl6  
 Abstract    Single crystals of (TeCl3)2M oCl6 and /?-(TeCl3)2 ReClft are obtained by the reactions of TeCl4 with MoC14 at 195 °C and o f TeCl4 / Te with ReCl5 at 150 °C, respectively. The com ­ pounds form dark-red moisture sensitive crystals. The crystal structure determinations show, that both crystallize isotypically (rhombohedral, space group R 3, (TeCl3)2M oCl6: a = 1116,9(1), c = 3539,5(5) pm. 1966 unique reflections for 69 parameters, final R = 0.058; /?-(TeCl3)2ReCl6: a = 1113,3(3), c = 3546(2) pm. 1653 unique reflections for 70 parameters, final R = 0.034). The structures consist of octahedral MC162_ anions (with M =M o,Re) and pyramidal TeCl3+ cations. The ions are interconnected through long Te-Cl bridges (2 9 1 ,1 -295,6 pm) to give distorted TeClA octahedra. MC16 and TeCl6 units are connected via edges and corners, resulting in a complex layer structure with layers parallel to the ab-plane. In the previously reported a-form of (TeCl3)2R eCl6, only connections via corners are observed. 
  Reference    Z. Naturforsch. 51b, 727 (1996); eingegangen am 2.Oktober 1995 
  Published    1996 
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 Identifier    ZNB-1996-51b-0727 
 Volume    51 
124Author    Z. NaturforschRequires cookie*
 Title    A -P r 2S3, D -H o2S3 und E -Y b 2S3: Synthese und Einkristallstrukturuntersuchungen  
 Abstract    The oxidation of reduced chlorides (MC12) or chloride-hydrides (MC1HV) of the lanthani­ des with sulfur (700-850 °C, 7 d, sealed tantalum capsules or evacuated silica vessels) usually results in the formation of the sesquisulfides M2S3 as the main products. In the presence of appropriate fluxes (e.g., alkali halides), the products often are obtained as single crystals, and the flux decides which modification is favoured. Ternary halides of the trivalent lanthanides with the corresponding alkali metal can mostly be found as the second components. Crystal growth and structural investigations of thus produced single crystals of Pr2S3 (from PrClH() 67 + S + NaCl, 5:5:1, A type: orthorhombic, Pnma (No. 62), Z = 4, a = 748.22(5), b = 405.51(3), c = 1560.74(9) pm, R = 0.024, Rw = 0.020), Ho^S, (from U -H o^S , + KI, 1:1, D type: mono­ clinic, P 2xim (No. 12), Z = 6, a = 1746.15(9), b = 400.23(3), c = 1012.43(6) pm, ß = 98.529(4)°, R = 0.041, Rw = 0.035), and YbiS3 (from T-Yb^S^ + KI, 1:1, E type: trigonal, R 3c (No. 167), Z = 6, a = 674.97(2), c = 1820.11(9) pm'. R = 0.019, Rw = 0.018) are reported here. In accordance with the lanthanide contraction, the trivalent cations (M3+) exhibit sulfur coordination numbers of 7 and 8 in A -P r 2S3, 6 and 7 in D -H o 2S3, and 6 in E -Y b 2S3 (corundum-type structure). 
  Reference    Z. Naturforsch. 51b, 733—738 (1996); eingegangen am 4. Oktober 1994 
  Published    1996 
  Keywords    Lanthanides, Sesquisulfides, Synthesis, Crystal Structure 
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 Identifier    ZNB-1996-51b-0733 
 Volume    51 
125Author    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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 Identifier    ZNB-1996-51b-0739 
 Volume    51 
126Author    P. ReetzRequires cookie*
 Title    Darstellung und n B-NMR-Spektrum von  
 Abstract    Heptabromo-c/oso-heptaborat, [B7Br7]2_ sowie Kristallstruktur von [(C5H5N)2CH2][B7Br7] P re p a ra tio n an d n B N M R S p ectru m o f H e p ta b ro m o -c /o s o -h e p ta b o ra te , [B7B r7]2~, an d th e C ry stal S tru c tu re o f [(C 5H 5N)2C H 2][B 7B r7] A . F ra n k e n , H . T h o m se n , W. Heptabromo-c/c>so-heptaborate(2-), Crystal Structure, n B NMR Spectra By reaction of co/7y///7cto-[B6H6-B6H6]2-in alkaline solution with excess bromine the heptabromo-c/oso-heptaborate, [B7Br7]2 is formed. The crystal structure of [(CsH3N)2CH2][B7Br7] has been determined by single crystal X-ray diffraction analysis (mo­ noclinic, space group P2t/a with a = 15.0843(14), b = 9.8882(14), c = 17.057(2) Ä, ß = 114.039°(7)). In accordance with the D5h point symmetry, the anion shows two singlets at -23.3 and -0.1 ppm with the intensity ratio 2:5 in 
  Reference    Z. Naturforsch. 51b, 744—746 (1996); eingegangen am 29. September 1995 
  Published    1996 
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 Identifier    ZNB-1996-51b-0744 
 Volume    51 
127Author    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 
128Author    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 
129Author    K. Arl, P. Ete Rs, -M A Ria, P. Ete RsRequires cookie*
 Title    5-B rom o-2-(chloroacetam ido)b en zo- p henon e -a Synthetic Precursor to 6-B rom oviridicatina Crystal Structure, Naturally Occurring Benzo­ diazepines, 5-Bromo-2-(chloroacetamido)-benzo- phenone. Intramolecular Hydrogen Bonding  
 Abstract    G e rh a rd B rin g m a n n , T h o m a s M a d e r 
  Reference    Z. Naturforsch. 51b, 754—755 (1996); received November 20 1995 
  Published    1996 
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 Identifier    ZNB-1996-51b-0754_n 
 Volume    51 
130Author    M. M. Öbius3, R. R. Ichter3, R. Szargan3, V. Fernandez, J. L. OsadabRequires cookie*
 Title    Metallkomplexe von N-(Pyrrol  
 Abstract    -l-yl)salicylaldiminen und deren Strukturbestimmung mittels Röntgendiffraktometrie und Röntgenabsorptionsspektroskopie (XANES) M etal C helates o f N -(P yrro l-l-y l)salicy lald im in es and their Structure D eterm ination by X -R ay Structure A nalysis and X -R ay A bsorption Spectroscopy (X AN ES) N -(Pyrrol-l-yl)salicylaldim ines, Salicylaldiminato Chelates, Synthesis, Molecular Structure, XANES A series of three N -(pyrrol-l-yl)salicylaldim ines 1-3 has been prepared an d characte­ rized. Their metal chelate complexes with Cu, Ni and Co are described. The molecular structures of bis[N-(pyrrol-l-yl)salicylaldim inato]copper(lI) la, bis{N-[3-(pyrrol-l-yl)propyl]-salicylaldiminato}nickel(II) 2b and tris{N -[3-(pyrrol-l-yl)propyl]salicylaldiminato}cobalt(III) 2d were determined by X-ray structure analysis. The chelates with tetracoordinated copper and nickel show a square planar coordination with the characteristic trans configuration. The chelate with hexacoordinated cobalt has a meridional coordination sphere. The complexes have also been investigated by X-ray absorption spectroscopy (X-ray Absorption Near Edge Structure, XANES) at the K edges of the 3d metals. Analyzing the relative intensities of the Is — 3d pre­ peak and the K edges of the line shape, it was possible to distinguish between planar, tetrahedral and octahedral coordination of the chelates. 
  Reference    Z. Naturforsch. 51b, 757—764 (1996); eingegangen am 15. November 1995 
  Published    1996 
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 Identifier    ZNB-1996-51b-0757 
 Volume    51 
131Author    Z. NaturforschRequires cookie*
 Title    Polynuclear Gold(I) Complexes of Mercaptocarboxylic Acids  
 Abstract    A lex a n d er S ladek, W olfg an g S ch n eid er, K laus A n g erm a ier, A n d re as Bauer, H u b ert S chm idbaur* Gold(I) Thiolates, (Benzylthiolato)gold(I) Complexes, Gold(I) Mercaptocarboxylates, Polynu­ clear Gold(I) Complexes 
  Reference    Z. Naturforsch. 51b, 765—772 (1996); received January 17 1996 
  Published    1996 
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 Identifier    ZNB-1996-51b-0765 
 Volume    51 
132Author    P.Requires cookie*
 Title    Phosphonio-substituierte 1,3-Diphosphanaph thaline aus der a,o-Kondensation von Phosphonium-benzyliden  
 Abstract    h o sp h o n io -S u b stitu te d 1 .3 -D ip h o sp h a n ap h th a le n es from th e a,o -C o n d e n sa tio n o f P h o sp h o n iu m -b en z y lid e s G eo rg Jo ch em , A lfred S chm idpeter* 
  Reference    Z. Naturforsch. 51b, 773—777 (1996); eingegangen am 21. Dezember 1995 
  Published    1996 
  Keywords    Phosphonium Ylides, Electrophilic Aromatic Substitution, 1, 3-Benzodiphosphinines, Spontaneous Chlorophosphine Dissociation, Selective Oxidation by Elemental Sulfur 
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 Identifier    ZNB-1996-51b-0773 
 Volume    51 
133Author    JosephG. Robe, Duc Le Van, JostW. Innemöller, Bernt Krebs, M. Echtild LägeRequires cookie*
 Title    Reaktive E=C(p-p)7r-Systeme, XLIII [1] Darstellung und Charakterisierung P-Phosphino-oder P-Arsino-substituierter Fluorphosphaalkene des Typs R2E-P=C(F)NEt2 (R = Me, CF3, Me2N; E = P, As)  
 Abstract    Reactive E=C(p-p)-7r System s XLIII [1] Synthesis and Characterization o f P -Phosphino or P-A rsino Substituted Fluoro-phosphaalkenes of the Type R 2E -P=C (F)N Et2 (R = Me, C F 3, M e7N; E = R As) The easily accessible phosphaalkene HP=C(F)NEt2 (lb) reacts with halophosphanes or -arsanes R2EX (X = Cl, I) in the presence of NEt3 to give P-phosphino-or -P-arsino sub­ stituted fluorophosphaalkenes of the type RiE-P=C(F)NEti (2 -6) in high yields (60 -85 %) [R2E: (CF3)2P (2), Me2N(CF3)P (3), Me2P (4), (CF3)2As (5), M e2As (6)]. The analogous re-action of ib with CF3PI2 (molar ratio 1:2) unexpectedly leads to the triphosphetene Et2N 
  Reference    Z. Naturforsch. 51b, 778—784 (1996); eingegangen am 30. November 1995 
  Published    1996 
  Keywords    Phosphaalkenes, 1, 2, 3-Triphosphetenes, NMR Spectra, Crystal Structure 
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 Identifier    ZNB-1996-51b-0778 
 Volume    51 
134Author    N. Berand, H. H. Aeuseler, K.-J RangeRequires cookie*
 Title    Hochdruckreaktionen quaternärer Chalkogenide mit Schichtstruktur H igh-Pressure Reactions o f Q uaternary Layered Chalcogenides  
 Abstract    M nIn2S, 6Se2 4 and CdIn2S2 , Se, 9 have been investigated under high-pressure -high-temperature conditions (p < 60 kbar, T < 1600°C). M nIn2S, 6Se2 4 and CdIn2S2.,S eL9 oshow a phase transition to spinel-type compounds (a = 11.022(2) and a = 11.059(1) A, respectively). MnGao 8In, 2S4 forms a high-pressure polymorph with an olivine-type structure (a = 12. 856(3), b = 7.500(3), c = 6.128(2) A). All other compounds decompose under the conditions applied. The results of a Rietveld structure refinement for the two high-pressure spinels are presented. 
  Reference    Z. Naturforsch. 51b, 785—789 (1996); eingegangen am 17. November 1995 
  Published    1996 
  Keywords    High-Pressure Phase Transitions, Spinel-Type Chalcogenides, Olivine-Type Chalcogenides, Layered Chalcogenides The layered chalcogenides CoGa 
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 Identifier    ZNB-1996-51b-0785 
 Volume    51 
135Author    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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 Identifier    ZNB-1996-51b-0790 
 Volume    51 
136Author    W. Schneider, K. Angermaier, H. SchmidbaurRequires cookie*
 Title    Polynuclear Gold Complexes of the Carbodiimide Unit [N=C=N]2  
 Abstract    The reaction of N,N'-bis(trimethylsilyl)carbodiimide with equimolar quantities of tris[(triphenylphosphine)gold]oxonium tetrafluoroborate in dichloromethane at -40°C gives high yields of a trinuclear complex {[(Ph3P)Au]2NCN[Au(PPh3)]}+ BF4~(1). According to variable temperature NMR data the cation is fluxional in solution with a rapid site exchange of the [(Ph3P)Au] units, but has an unsymmetrical (N,N,N') low temperature ground state configu­ ration. A single crystal X-ray diffraction study has shown that in the crystal lattice these cations are associated further into cyclic, hexanuclear dimers through two short head-to-tail Au-Au contacts (auriophilicity). Treatment of complex 1 with one equivalent of [(Ph3P)Au]+ BF4_ in tetrahydrofuran affords a tetranuclear complex {[(Ph3P)Au]2NCN[Au(PPh3)]2}2+ 2BF4_ (2). The ambient temperature NMR spectra of 2 suggest a fluxional, pseudo-symmetrical structure, but at low temperature a set of three 11P signals (1:2:3 intensity) indicates an aggregation into higher nuclearity species with non-equivalent [Au(PPh3)] units. 
  Reference    Z. Naturforsch. 51b, 801—805 (1996); received December 4 1995 
  Published    1996 
  Keywords    Carbodiimide, Gold Complexes, (Phosphine)gold Carbodiimides 
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 Identifier    ZNB-1996-51b-0801 
 Volume    51 
137Author    Rainer PöttgenRequires cookie*
 Title    The Stannides EuPdSn and EuPtSn  
 Abstract    EuPdSn and EuPtSn were prepared from the elements in tantalum tubes at 1070 K and in­ vestigated by X-ray diffraction on both powder as well as single crystals. They crystallize with the TiNiSi type structure of space group Pnma and with Z = 4 formula units per cell. Both structures were refined from single-crystal diffractometer data: a = 751.24(9), b = 469.15(6), c = 804.31(9) pm, V = 0.2835(1) nm3 for EuPdSn, and a = 753.38(7), b = 467.72(4), c = 793.08(7) pm, V = 0.2795(1) nnr for EuPtSn. The structures consist of three-dimensional [PdSn] and [PtSn] polyanionic networks in which the europium atoms are embedded. The crystal chemistry of these stannides is briefly discussed. 
  Reference    Z. Naturforsch. 51b, 806—810 (1996); received November 9 1995 
  Published    1996 
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 Identifier    ZNB-1996-51b-0806 
 Volume    51 
138Author    M. Steiner, A. Artina, Klaus-Jürgen Ndratschke, RangeRequires cookie*
 Title    C laudia  
 Abstract    Single crystals of Nd4Au20 9 and Gd4Au20 9 have been prepared by oxidizing mixtures of gold metal and Nd20 3 or Gd20 3, rsp., with K 0 2 under high-pressure high-temperature conditions (40 kbar, 1200°C) in a modified Belt-type apparatus. The X-ray structure analyses have been carried out on twinned crystals. The compounds crystallize in the orthorhombic space group Pbcn (Nd4A u ,0 9: a = 11.938(7) , b = 6.126(2),c = 11.928(3) A ,Z = 4,/?1 = 0.0443; Gd4A u ,0 9: a = 11.922(2), 6 = 6.1242(7), c = 11.917(2) A, Z = 4. R\ =0.0232). The title compounds are isostructural with La4Au20 9. Their structure comprises isolated square-planar A u04 groups, stacked along [010] to form a columnar structure. The Au-Au distance along the columnar direction is 3.10 A. Structural relations to Bi2C u04 und (Nd, Pr)2A u05 are discussed. Hochdrucksynthese und K ristallstruktur von Nd4Au2 C>9 und Gd4Au2 C>9 
  Reference    Z. Naturforsch. 51b, 811—816 (1996); eingegangen am 1. Dezember 1995 
  Published    1996 
  Keywords    Lanthanoide Aurates(III), High-Pressure Synthesis, Crystal Structure, Columnar Stacking 
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 Identifier    ZNB-1996-51b-0811 
 Volume    51 
139Author    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 
140Author    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 
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