Go toArchive
Browse byFacets
Bookbag ( 0 )
Search Crystal andstructure in keywords [X]
Facet   section ZfN Section B  [X]
Facet   Publication Year 1994  [X]
Results  62 Items
Sorted by   
Publication Year
1994[X]
1Author    Mit Unterschiedlich, Koordinierten Zinkionen, Joachim Pickardt, Gill-Taik Gong, Sabine Wischnack, Christina SteinkopffRequires cookie*
 Title    Kristallstruktur zweier Zinkthiocyanat-Hexamethylentetramin-Addukte, Zn(SCN)2» (Q H ^N,), und {Zn(SCN)2 C6HnN4 2H 20}(SCN)2-(C6H 12N4)2, and {Zn(SCN)2-C6H 12N4-2H 20}", with Differently Coordinated Zinc Ions  
 Abstract    of the adducts Zn(SCN),-(C6H12N4)2 (1), and {Zn(SCN)2-C6H 12N4-2H20}" (2) were obtained by crystallization from aqueous solutions containing hexamethylenetetrami­ ne, potassium thiocyanate and zinc nitrate or zinc sulfate, resp., under identical conditions, as two totally different products. 1 crystallizes orthorhombically, space group P nmm, Z -2, a -622.4(5), b -1152.3(7), c = 1394.0(9) pm; 2 is monoclinic, space group C2/c, a = 984.4(3), b = 1217.0(5), c = 1257.4(6) pm, andß = 111.69(5)°. The crystal structure of 1 contains discrete molecules of the complex, in which the zinc ion is tetrahedrally coordinated by two NCS li­ gands, and two hexamethylenetetramine molecules, which act as monodentate ligands. In 2 however, the zinc ions are octahedrally coordinated. A "supramolecular" structure is form­ ed: The hexamethylenetetramine molecules act as bridging bidentate ligands and connect [Zn(H20) 2(NCS)2] units forming zig-zag chains. Adjacent chains are interconnected via hydrogen bonds. The formation of the two compounds with different coordination may be due to the fact, that the educts Zn(N03)2-4H20 and ZnS04-7H20 contain Zn(H20) 4 and Zn(H20) 6 moieties, resp., and that these species are retained in solution. 
  Reference    Z. Naturforsch. 49b, 325—329 (1994); eingegangen am 24. August 1993 
  Published    1994 
  Keywords    Hexamethylenetetramine Complexes, Zinc Thiocyanate Adducts, Crystal Structure Crystals 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0325.pdf 
 Identifier    ZNB-1994-49b-0325 
 Volume    49 
2Author    Enno Lork, Ulrich Behrens, G. Ünter Steinke, Rüdiger MewsRequires cookie*
 Title    Die Kristallstruktur von trans-l,3?5-Trichloro-l,3>5-trioxo  
 Abstract    1 A6, 3 A6, 5 A6,2,4,6-trithiatriazin (/?-Sulfanurchlorid) The Crystal Structure o f /raws-1,3,5-Trichloro-1,3,5-trioxo-1 X6, 3/i6, 516, 2,4,6-trithiatriazine (/?-Sulfanuric Chloride) The crystal structure o f /?-(N S(0)C l)3 is reported. 
  Reference    Z. Naturforsch. 49b, 437 (1994); eingegangen am 22. November 1993 
  Published    1994 
  Keywords    Trichlorotrioxotrithiatriazines, Sulfanuric Chlorides, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0437.pdf 
 Identifier    ZNB-1994-49b-0437 
 Volume    49 
3Author    Müller-BuschbaumRequires cookie*
 Title    Zur Kristallchemie der Oxoplatinate. Eine neue Phase der Zusammensetzung Sr4_j.Naj.PtO6 (jt = 0,33)  
 Abstract    On the Crystal Chemistry of Oxoplatinates. A New Phase of the Composition Sr4 _xN avP t0 6 (x -0.33) G. Tams, Hk. Single crystals of Sr3 67Na() 33PtO fi were prepared by heating oxide mixtures in closed silver tubes and investigated by X-ray single crystal techniques. It crystallizes with trigonal symme­ try, space group Dfd-R 3 c (Nr. 167) with a = 9.6617, c = 11.6580 Ä, Z = 6. Sr367Na()33P t0 6 belongs to the Sr4P t0 6 type and is isotypic to K4CdCl6. One point position characterized by a trigonal prismatic O 2-coordination is occupied by N a+ and Sr2+ statistically. The crystal structure is discussed with respect to the related compounds Sr3C u P t0 6 and Ca3 5Cu() 5P t0 6. 
  Reference    Z. Naturforsch. 49b, 581—584 (1994); eingegangen am 12. Januar 1994 
  Published    1994 
  Keywords    Strontium, Sodium, Platinum Oxide Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0581.pdf 
 Identifier    ZNB-1994-49b-0581 
 Volume    49 
4Author    Siegfried Pohl, Michael Peters, Detlev Haase, Wolfgang SaakRequires cookie*
 Title    Bildung von Iodoantimonaten und -bismutaten. Kristallstrukturen von (PhCH2NEt3)4 [Sb6l 2 2 L (PhCH2NEt3)4 [Bi6l 2 2 ] und (Ph4P)3[Bi5I18] Form ation of Iodoantim onates and Bismutates. Crystal Structures of (PhCH 2N E t3)4[Sb6I22], (PhC H 2N Et3)4[Bi6l22] and (Ph4P)3[Bi5I 18]  
 Abstract    The formation and the crystal structures of the title compounds are reported. (PhCH2N E t3)4[Sb6l 22] and (PhCH 2N E t3)4[Bi6l 22] are isotypic and contain a novel [E6I22]4~ anion (E = Sb, Bi). The anion of (Ph4P)3[Bi5I18] consists of a linear chain of five face-sharing [B il6] octahedra. 
  Reference    Z. Naturforsch. 49b, 741—7 (1994); eingegangen am 27. Januar 1994 
  Published    1994 
  Keywords    Iodoantimonates, Iodobismutates, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0741.pdf 
 Identifier    ZNB-1994-49b-0741 
 Volume    49 
5Author    Viktor Keimes, Albrecht MewisRequires cookie*
 Title    MgNi2P -das erste ternäre Phosphid mit geordneter Fe3C-Struktur MgNi2P -The First Ternary Phosphide with an O rdered Fe3C Type Structure  
 Abstract    MgNi2P was prepared by heating a mixture of the elements and investigated by means of single crystal X-ray methods. The compound crystallizes in an ordered Fe3C-type structure 
  Reference    Z. Naturforsch. 49b, 1071—1073 (1994); eingegangen am 00. 00. 0000 
  Published    1994 
  Keywords    Ternary Nickelphosphide, Magnesium, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1071.pdf 
 Identifier    ZNB-1994-49b-1071 
 Volume    49 
6Author    Holger Szillat, Hanskarl Müller-BuschbaumRequires cookie*
 Title    Synthesis and Crystal Structure of Cuq^sH oj 25w 2o 8  
 Abstract    Single crystals of Cu(l.2sHO|.2sW20 8 were prepared by recrystallization from melts and investigated by X-ray diffractometer technique. Cuo^sHoj 25W 2Os crystallizes with m ono­ clinic symmetry, space group C2/c, o -19.123, b -5.613, c = 11.479 Ä , ß = 111.44°. Z = 8. It represents a new structure type characterized by W40 18 groups and Cu+/H o3+ at one point position in statistical distribution. Cu+/H o3+ show an octahedral coordination. A nother point position is occupied by Ho3+ with C. N. = 7. 
  Reference    Z. Naturforsch. 49b, 1145—1149 (1994); eingegangen am 25. März 1994 
  Published    1994 
  Keywords    Crystal Structure Copper Holmium, Tungsten, Oxide 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1145.pdf 
 Identifier    ZNB-1994-49b-1145 
 Volume    49 
7Author    Jörn Müller, PetraEscarpa Gaede, Ke QiaoRequires cookie*
 Title    ^-Olefin-Iridium-Komplexe, XXII [1] C -H -Aktivierung von aromatischen und aliphatischen Solvensmolekülen RH bei der Reaktion von [Cp*IrCI2 ] 2 mit Butadienmagnesium unter Bildung von [Cp*Ir(773-C4H 7)R] sowie Kristallstruktur von [Cp*Ir(i/3-C4H 7)C6H 5] jr-Olefin Iridium Complexes, XXII [1] C -H Activation of Aromatic and Aliphatic Solvent Molecules RH in the Reaction of [Cp*IrCl2 ] 2 with Butadienemagnesium with Formation of [Cp*Ir(?;3 -C4 H 7 )R], and Crystal Structure of [Cp*Ir(773 -C4 H 7 )C6 H 5] Activation of C -H , (l-Methylallyl)(pentamethylcyclopentadienyl)iridium-a-organyl Com­ plexes  
 Abstract    Reactions of [Cp*IrCl2]2 (Cp* = ^3-C5M e5) with [MgC4H6 -2 THF]" at low temperature give [Cp*Ir(^4-C4H6)] together with [Cp*Ir(/73-C4H 7)R] compounds, the latter being formed via C -H activation of solvent molecules RH (RH = benzene, toluene, anisole, thiophene, furane, N-methylpyrrole, pentane, cyclohexane. THF). In the case of pyrrole, C -N -activation occurs. The ratio of syn and anti isomers of the 1-methylallyl com plexes as well as the sites o f C -H activation of RH were investigated by NM R spectrometry. An enantiomorphous crystal of [Cp*Ir(773-C4H7)C6Hs] was characterized by X-ray diffraction analysis which reveals trigonal planar coordination at the Ir atom and an exo, syn conformation o f the 1-methylallyl ligand. A mechanism of the reaction which involves 16-electron intermediates is discussed. The corresponding system [Cp*RhCl2]2/butadienemagnesium/RH gives only [Cp*Rh(>/4-C4H6)], and no C -H activation is observed. 
  Reference    Z. Naturforsch. 49b, 1645—1653 (1994) 
  Published    1994 
  Keywords    Synthesis, NMR Spectra, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1645.pdf 
 Identifier    ZNB-1994-49b-1645 
 Volume    49 
8Author    F.-D Martin, Hk Müller-BuschbaumRequires cookie*
 Title    Synthese und Kristallstruktur von NaM g1?64Cu0 ,36^3^10 Synthesis and Crystal Structure of NaM glt64Cuoi36V 3 0 1o  
 Abstract    Single crystals of NaMg] 64Cu().36V 3O 10 have been prepared by heating mixtures of Na2C 0 3, M gC 03, CuO and V 20 5 above the melting point. The yellow crystals show triclinic symmetry, space group Cj-PT, a = 6.726(8), b = 6.743(7), c = 9.625(2) Ä , a = 100.705(9), ß -104.57(1), y = 101.700(9)°, Z = 2. N aM g164Cu0.36V 3O 10 represents a new structure type showing V 3O 10 groups, a statistical distribution of Mg2+ and Cu2+ on two point positions, and N a+ in an irregular coordination. 
  Reference    Z. Naturforsch. 49b, 1329—1333 (1994); eingegangen am 6. Mai 1994 
  Published    1994 
  Keywords    Sodium Magnesium, Copper, Vanadium Oxide, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1329.pdf 
 Identifier    ZNB-1994-49b-1329 
 Volume    49 
9Author    YueQing Zheng, Arnold AdamRequires cookie*
 Title    Ein neues Carbonat mit Baylissit-Struktur: Rb2[M g(C 03)2(H 20 )4] A New Carbonate with Baylissite Structure: Rb2 [Mg(C0 3 )2(H 2 0 )4]  
 Abstract    The new complex carbonate Rb2[M g (C 0 3)2(HoC))4] crystallizes in the Baylissite-tvpe structure with a = 1130,4(3), b = 641,9(1), c = 703,3(2) pm, ß = 99,62(1)°, V EZ = 503,2(2), space group P2l/n (No. 14) and Z = 2. In comparison with the isostructural potassium compound the cell dimensions increase in b-and c-and decrease in ö-direction. This effect depends on the greater coordination number of Rb+ and the rigidity of strong hydrogen bonds. The carbonate anion exhibits significant deviations from D 3h-symmetry (C -O : 127,1(5)-130,2(5) pm, Z_ O -C -O : 117.9(4)-121,1(3)°). 
  Reference    Z. Naturforsch. 49b, 1368—1372 (1994); eingegangen am 25. April 1994 
  Published    1994 
  Keywords    M etal-Carbonato-Complex, Baylissite Type, Synthesis, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1368.pdf 
 Identifier    ZNB-1994-49b-1368 
 Volume    49 
10Author    Stefan Peschel, Dietrich BabelRequires cookie*
 Title    Zur Kristallstruktur der Cyanoelpasolithe [N(CH3)4]2CsCo(CN)6 und [H3NCH3]2NaFe(CN)6 Concerning the Crystal Structures of the Cyano-Elpasolites [N(CH3 )4]2CsCo(CN) 6 and [H3NCH3]2NaFe(CN) 6  
 Abstract    Single crystals of the cyano com plexes [N (C H 3)4]2C sC o(C N)6 and [H3NCH 3]2N aFe(C N)6 were prepared and their structures determined by X-ray methods. The cobalt compound is monoclinic, a -885.5(1), b = 892.6(2), c = 1259.9(5) pm, ß = 90.29(4)°, space group 12Im, Z = 2; R l = 0.048 for 861 independent reflections. The resulting average distances in the nearly undistorted octahedra are C o -C = 189.8, C -N = 114.1, C s -N = 325.6 pm. The iron compound exhibits a cubic elpasolite type structure, a = 1105.2(1) pm, space group Fm 3m , Z = 4; R l = 0.040 for 127 independent reflections; F e -C = 193.4(6), N a -N = 247.7(8) pm. The orientation of the librating tetramethyl-ammonium group within the cages of the cobalt compound and the disorder of the monomethyl-ammonium cation around the special site (1/4, 1/4, 1/4) of the iron complex are discussed. 
  Reference    Z. Naturforsch. 49b, 1373—1380 (1994); eingegangen am 31. März 1994 
  Published    1994 
  Keywords    Hexacyanometallates(III), Crystal Structure, Elpasolite 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1373.pdf 
 Identifier    ZNB-1994-49b-1373 
 Volume    49 
11Author    F.-D Martin, Hk Müller-BuschbaumRequires cookie*
 Title    Zur Kenntnis von K4CuV50 15C1 On K4 CuV5 0 1 5 C1  
 Abstract    Single crystals of K4CuV50 15C1 were prepared by crystallization from the melt. The yellow brown crystals show tetragonal symmetry, space group C 4-P 4, a = 8.8690, c = 5.4196 A , Z = 1. K4CuV50 15C1 is strongly related to KBaCuV20 7Cl and K2V 30 8. V (l) shows V 20 7 double tetrahedra connected by square V 0 5 and C u 0 4Cl pyramids. The crystal structure is discussed with respect to the related compounds. 
  Reference    Z. Naturforsch. 49b, 1459—1462 (1994); eingegangen am 9. Juni 1994 
  Published    1994 
  Keywords    Potassium, Copper, Vanadium Oxide-Chloride, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1459.pdf 
 Identifier    ZNB-1994-49b-1459 
 Volume    49 
12Author    D. Frerichs, Hk Müller-BuschbaumRequires cookie*
 Title    Ein Beitrag zur Kristallchemie von Verbindungen mit Johillerit-Struktur: On the Crystal Chemistry of Compounds with Johillerite Structure: KCo3 Cu(As2 5 8 V0 4 2 )O i2  
 Abstract    Single crystals of KCo3Cu(As2.58Vo42) 0 12 were prepared by solid state reactions below the melting point of the reaction mixture (K 2C 0 3, CuO, CoC20 4, V 20 5 and 3 A s20 5 -5 H 20) . It crystallizes with m onoclinic symmetry, space group C |h-C 2 lc, a = 12.207, b = 12.730, c = 6.811 A , ß = 113.69°, Z -4. The structure type is characterized by isolated twisted-square C u 0 4-polygons, C o 0 6-octahedra and a special 4+4-coordination o f the potassium ion. A s5+ and V*+ are in tetrahedral coordination with a partly statistical distribution of these ions. 
  Reference    Z. Naturforsch. 49b, 1463—1466 (1994); eingegangen am 13. Juni 1994 
  Published    1994 
  Keywords    Potassium, Cobalt, Arsenic, Vanadium Oxide, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1463.pdf 
 Identifier    ZNB-1994-49b-1463 
 Volume    49 
13Author    Christian Robl, VolkerG. ÖbnerRequires cookie*
 Title    Kristallstruktur und hydrothermale Darstellung der Schichtverbindung B e2( P 0 4)(0 H )* 2 H 20 Crystal Structure and Hydrotherm al Synthesis of the Layered Com pound Be2 ( P 0 4 ) (0 H ) * 2 H 20  
 Abstract    Colourless monoclinic single crystals of B e2(P 0 4) (0 H) -2 H 20 (space group P 2 Jn) have been prepared under hydrothermal conditions in aqueous solution. Crystal data: a = 631.7(1), b = 1108.7(2), c = 812.7(2) pm, ß = 105.83(2)°, 910 unique reflections, 108 parameters, Rg = 0.0233. P is tetrahedrally coordinated by 4 oxygen atoms. Each of the two crystallographically unique Be atoms has two phosphate oxygen atoms, one water molecule, and one OH group as coordination partners. The tetrahedra share common vertices and build up a two-dim ensionally infinite pattern. The OH group links the two unique Be centered tetrahedra. Loss of water com m ences at 300 °C and is finished at 580 °C. 
  Reference    Z. Naturforsch. 49b, 1499—1502 (1994); eingegangen am 23. Juni 1994 
  Published    1994 
  Keywords    Beryllophosphate, Crystal Structure, Differential Thermal Analysis, Layered Compound 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1499.pdf 
 Identifier    ZNB-1994-49b-1499 
 Volume    49 
14Author    S. Mann, M. JansenRequires cookie*
 Title    Ein neuer Zugang zu ionischen Thionylimiden. Einkristallstruktur von N(CH3)4NSO A New Access to Ionic Thionylimides. Single Crystal Structure of N(CH3)4NSO  
 Abstract    Single crystals of N (C H 3)4NSO have been prepared via ion exchange from RbNSO or CsNSO and tetraalkylammonium halides in liquid ammonia and investigated by X-ray single crystal techniques (14, a = 1137.6(1), c = 1134.9(2) pm, Z = 8, T = -1 0 0 °C). The crystal structure of N (C H 3)4NSO is related to the CsCl-type of structure. Using the same preparative route N M e3B zN SO has been obtained. Its lattice powder data (orthorhombic primitive; a = 896.3(2) 
  Reference    Z. Naturforsch. 49b, 1503—1506 (1994); eingegangen am 13. Juni 1994 
  Published    1994 
  Keywords    Thionylimide, Ion Exchange, Tetramethylammonium, Crystal Structure, Benzyltrimethylammonium 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1503.pdf 
 Identifier    ZNB-1994-49b-1503 
 Volume    49 
15Author    Oliver Heilmann, Hans-Dieter Hausen, Wolfgang KaimRequires cookie*
 Title      
 Abstract    The crystal structure determination of the new rhodium(III)-complex [(DM L)(C5Me5)ClRh](PF6). DML = 1,3-dimethyllumazine, reveals 0 4,N5 coordination of the metal to DML with not very different bond lengths of 213.0(2) pm (R h -N) and 219.2(2) pm (R h -O). This result stands in contrast to the previously reported structure of a cationic dihydrobiopterin bound to [Mo(0)C13] which exhibited a very unsymmetrical chelate ar­ rangement. Chemical and electrochemical two-electron reduction of the Rh(III) complex led to a very labile Rh(I) species (DM L)(C5Me5)Rh which is distinguished by an intense charge transfer band in the visible. The results confirm the characterization of DML as a weak o donor In acceptor ligand with a rather low-lying tc* orbital. 
  Reference    Z. Naturforsch. 49b, 1554—1560 (1994); received July 8 1994 
  Published    1994 
  Keywords    Crystal Structure, Pteridine Heterocycles, Rhodium, Electrochemistry, Coordination 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1554.pdf 
 Identifier    ZNB-1994-49b-1554 
 Volume    49 
16Author    M. Arkus Wieber, Stefan Lang, StefanRalph Rohse, Christian Habersack, BurschkaRequires cookie*
 Title    Synthese und Kristallstruktur von Triphenyltelluroniumsulfid Synthesis and Crystal Structure of Triphenyltelluroniumsulfide  
 Abstract    The synthesis of triphenyltelluroniumsulfide (Ph3TeS)4 is described together with a NMR-spectroscopic characterization. The structure of the title compound was determined by single crystal X-ray diffraction. Crystals of triphenyltelluroniumsulfide are triclinic (space group P I) with the cell parameters a = 1178.0(3) pm. b = 1295.8(6) pm. c = 1298.7(4) pm, a = 77.67(3)°, ß = 82.18(2)°, y = 66.00(2)° (V = 1766(1) x 106 pm3) and Z = 2. The compound appears to form a step-like structure of two [Ph3TeS]2 units and crystallizes with two m ole­ cules of CH2C12 per unit cell. 
  Reference    Z. Naturforsch. 49b, 1654—1658 (1994); eingegangen am 5. Mai 1994 
  Published    1994 
  Keywords    Triphenyltelluroniumsulfide, Synthesis, NMR Data, Crystal Structure, Secondary Bonding 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1654.pdf 
 Identifier    ZNB-1994-49b-1654 
 Volume    49 
17Author    Z. NaturforschRequires cookie*
 Title    Die isoelektronischen Molekülkomplexe TiCl3(NPPh3) und TiCl3(OSiPh3)  
 Abstract    The Isoelectronic M olecular C om plexes TiC l3(N P P h 3) and T iC l3(O SiPh3) Thilo R übenstahl, D o ro th ea W olff von G udenberg, F ra n k W eller, K u rt D ehnicke* TiCl3(NPPh3) and TiCl3(OSiPh3) have been prepared from titanium tetrachloride and Me3SiNPPh3 and HOSiPh3, respectively. Both complexes were characterized by IR spectrosco­ py and by crystal structure determmations. TiCl3(N PPhj): Space group R3, Z = 6, structure analysis with 959 observed unique reflec­ tions, R = 0.039. Lattice dimensions at -6 8 °C: a = b = 1370.5(7), c = 1845.9(9) pm. TiCl}(OSiPh3): Space group P2,/c, Z = 8, structure analysis with 4549 observed unique re­ flections, R = 0.049. Lattice dimensions at 19 °C: a = 2127.7(2), b = 947.2(1), c = 2136.8(1) pm, ß = 105.081(5)°. Both complexes form monomeric molecules in which the titanium atom is tetrahedrally coordinated by three chlorine atoms, the nitrogen atom of the phosphorone iminato ligand and the oxygen atom of the silyloxy group, respectively. The bond lengths TiN of 171.9(4) pm and TiO of 171.0(3) (in average) correspond to double bonds. 
  Reference    (Z. Naturforsch. 49b, 15—20 [1994]; eingegangen am 7. September 1993) 
  Published    1994 
  Keywords    Monomerie Titanium Complexes, Synthesis, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0015.pdf 
 Identifier    ZNB-1994-49b-0015 
 Volume    49 
18Author    Z. NaturforschRequires cookie*
 Title    Gold-Alkalimetallsysteme, III. Hochdrucksynthese und Kristallstruktur von Rb3Au7 [1]  
 Abstract    G old-A lkali M etal-System s, III. H igh Pressure Synthesis and C rystal S tructure o f R b 3A u 7 [1] K laus-Jürgen Range*, G eorg H. G rosch, F ran z R au, U lrich K lem ent The intermetallic compound Rb3Au7 could be synthesized from the elements at 4 kbar, 700 °C in a modified Belt-type apparatus. The structure (Cmmm; a = 5.579(1), b = 13.267(5), c = 7.265(2) Ä; Z = 2; R = 0.035, Rw = 0,031) comprises three crystallographically independ­ ent Au atoms, arranged in layers along the c-axis. The shortest interatomic distances are A u -A u = 2.633Ä, A u -R b = 3.438Ä and R b -R b = 3.622Ä. Im System R ubidium -G old [2,3] sind bisher n u r die V erbindungen R b A u [4] und R b A u 5 [5,6] ein­ deutig nachgewiesen und strukturell c h a ra k te ri­ siert w orden. Die Existenz von R b A u 2 [2,3,7] ko n n te bisher nicht verifiziert werden. D ie h o m o ­ logen V erbindungen N aA u 2 [8] und K A u 2 [9] sind Lavesphasen und kristallisieren im kubischen M gC u2-Typ bzw. im hexagonalen M g Z n 2-Typ. Bei unseren V ersuchen zur H ochdrucksynthese einer L avesphase R b A u 2 fanden wir nun eine bisher im System R b -A u unbekannte Phase d er Z u sam ­ m ensetzung R b 3A u 7, über die im folgenden berich­ tet w ird. 
  Reference    (Z. Naturforsch. 49b, 27—30 [1994]; eingegangen am 6. Juli 1993) 
  Published    1994 
  Keywords    Trirubidium Heptagold, High Pressure Synthesis, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0027.pdf 
 Identifier    ZNB-1994-49b-0027 
 Volume    49 
19Author    Thom As Schleid, Falk LissnerRequires cookie*
 Title    Oxidsulfidchloride der Lanthanide vom Typ M 4OS4Cl2 (M = L a-N d ) M 4OS4Cl2-Type Oxysulfide Chlorides of the Lanthanides (M = L a -N d )  
 Abstract    Oxysulfide chlorides, M4OS4Cl2, o f the lanthanides (M = L a -N d) are obtained upon the oxi­ dation o f the metals with sulfur in the presence o f MOC1 (or M 20 3) and MC13 in appropriate molar ratios. Additional NaCl or an excess o f MC13 serving as a flux provide even single crys­ talline material after reactions at 850 °C for seven days in sealed tantalum capsules. The crys­ tal structure o f M4OS4Cl2 (hexagonal, P 6 3mc, no. 186, Z = 2; M = La: a = 933.19(3), c = 701.22(4) pm, c/a = 0.7514, R = RH = 0.020; M = Ce: a = 925.49(3), c = 694.13(3) pm, c/a = 0.7500; M = Pr: a = 919.72(4), c = 688.53(4) pm, c/a = 0.7486; M = Nd: a = 914.25(4), c = 683.12(4) pm, c/a = 0.7472, R = 0.022, Rw = 0.019) contains isolated 0 2--centered (M 3+)4 te-trahedra which are surrounded by twelve S2-and six Cl-, capping vertices, edges, and faces o f each tetrahedron and linking to other [OM4] units. Basically, the structure is identical to that o f Ba4OCl6 if Ba2+ is substituted by M 3+ and 2/3 o f the CL anions are replaced by S2-to secure charge neutrality in M4OS4Cl2. Different models for the C L /S 2-replacement are presented on the basis o f comparisons o f the Madelung part o f the lattice energy (M A PLE) with the M APLE sum o f the binaries (M 20 3, M 2S3, and MC13). 
  Reference    Z. Naturforsch. 49b, 340 (1994); eingegangen am 27. September 1993 
  Published    1994 
  Keywords    Lanthanides, Oxysulfide Chlorides, Synthesis, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0340.pdf 
 Identifier    ZNB-1994-49b-0340 
 Volume    49 
20Author    Frank Weller, Fritjof Schmock, Kurt Dehnicke, Kurt Findeisen Bayer-WerkRequires cookie*
 Title    Synthese, IR-Spektrum und Kristallstruktur von 1.3.5-Trichlortriazinium-hexachloroantimonat, [HC3N3C13]SbCl6 Synthesis, IR Spectrum and Crystal Structure of 1.3.5-Trichlortriazinium Hexachloroantim onate, [HC3N3Cl3]SbCl6  
 Abstract    ,3,5-Trichlortriazinium hexachloroantimonate has been prepared by the reaction of CCl2 = N-COCl with antimony pentachloride in boiling dichloromethane. The compound was characterized by IR spectroscopy and by a crystal structure determination. [HC3N3Cl3]SbCl6 crystallizes in the monoclinic space group P 2 Jn with four formula units per unit cell. 2503 observed unique reflections, R = 0.029. Lattice dimensions at 19 °C: a = 1314.1(1), b = 958.2(1), c = 1329.1(1) pm, ß = 117.113(5)°). The compound forms ion pairs via a linear N -H • • • Cl bridge, thus distorting the SbCl6~ ion from octahedral geometry. The C3N3 skeleton of the [HC3N3C13]+ ion is nearly planar, but the hydrogen atom lies about 30 pm out of this plane. 
  Reference    Z. Naturforsch. 49b, 360—364 (1994); eingegangen am 3. November 1993 1.3. 
  Published    1994 
  Keywords    5-Trichlortriazinium Salt, Synthesis, IR Spectra, Crystal Structure 1 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0360.pdf 
 Identifier    ZNB-1994-49b-0360 
 Volume    49 
1
2
3
4
Next