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1998[X]
181Author    Helical Borate, AnionA. Wiesch, K. BluhmRequires cookie*
 Title    Ag2Cs[B1 5 0 2 4]* Ein wasserfreies quaternäres SiIber(I)-Borat mit einem neuartigen Boratanion mit helixartigem Aufbau Ag2C s[B 150 24]: An Anhydrous Quaternary Silver(I)-Borate with a New  
 Abstract    Single crystals o f Ag2C s[B ,50 24] were prepared by using a B 20 3 flux technique with Ag2C 0 3 and Cs2C 0 3 in a closed silver tube at 650 °C. X-Ray investigations led to a new crystal structure in the space group P 2 ,2 ,2 (Nr. 18) with lattice parameters a = 1778.7 (4); b = 2219.2 (4); c = 512.2 (1) pm, Z = 4. The silver atoms are part of distorted A g 0 4 tetrahedra and planar A g 0 3 units while the caesium atoms are eightfold coordinated by oxygen. The compound contains an as yet unknown borate anion [B,50 24] with twelve B 0 3-and three B 0 4 units per formula. The B 0 3 units are connected to eight cords twisted to helices which are combined via B 0 4 tetrahedra to a three dimensional framework with large tunnels occupied by the cations. 
  Reference    Z. Naturforsch. 53b, 157—160 (1998); eingegangen am 23. Oktober 1997 
  Published    1998 
  Keywords    Silver, Caesium, Borate, Synthesis, Crystal Structure 
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 Identifier    ZNB-1998-53b-0157 
 Volume    53 
182Author    G. Waidmann, M. JansenRequires cookie*
 Title    Synthese und Charakterisierung des Fulleren-Kokristallisats C60*SiH(C6H5)3 Synthesis and Characterisation of the Fullerene Co-Crystal C60*SiH(C6H5)3  
 Abstract    A new fullerene co-crystal C60*SiH(C6H5)3 has been synthesized by crystallisation from a melt of SiH(C6H5)3 and C60 in sealed duran tubes at 80°C. X-ray investigations led to triclinic symmetry, space group P i, a = 10.086(1),/? = 14.431(2), c = 14.911(2) Ä, a = 79.13(1), ß = 74.943(9), 7 = 88.33(1)°, V = 2058.0(4) A 3, Z = 2. The crystal structure consists of isolated fullerene and silane molecules. At -80°C, C60 is still rotationally disordered. Temperature dependent Guinier powder diagrams do not show any phase transformation between 25 and -165°C. The compound is stable in air. 
  Reference    Z. Naturforsch. 53b, 161—164 (1998); eingegangen am 14. November 1997 
  Published    1998 
  Keywords    Fullerene C60, Synthesis, Crystal Structure 
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 Identifier    ZNB-1998-53b-0161 
 Volume    53 
183Author    Insan Boy, Gerhard Cordier, Brigitte Eisenmann, Rüdiger KniepRequires cookie*
 Title    Oligomere Tetraeder-Anionen in Borophosphaten: Darstellung und Kristall­ strukturen von NaFe[BP20 7(0H )3] und K2 Fe2 [B2 P4 0 1 6 (0 H)2 ] Oligomeric Tetrahedral Anions in Borophosphates: Synthesis and Crystal Structures of NaFe[BP20 7(0 H )3] and K2Fe2[B2P40 16(0 H )2]  
 Abstract    Crystals of the title compounds were grown under hydrothermal conditions. The crystal structures were determined by single crystal data. NaFe[BP20 7(0 H)3] (monoclinic, C 2/c, a = 1042.0(2), b = 821.5(1), c = 921.7(1) pm, ß = 116.60(1)°, Z=4): The crystal structure contains isolated anions [BP20 7(0 H)3]4~, which correspond to trinuclear units P 0 l/20 3-B 0 2/ 2(0 H)2-P 0 1/ 20 2(0 H) of corner sharing tetrahedra. Fe3+ is coordinated octahedrally by oxygen, Na+ is 8 -fold coordinated by oxygen forming cubes. K2Fe2 [B2P40 16(0 H)2] (triclinic, P i, a = 516.7(1), b = 808.9(1), c = 834.0(1) pm, a = 87.06(f), ß = 80.21(1), 7 = 86.59(1)°, Z = 1): The crystal structure contains isolated anions [B2P40 16(0 H)2]8_. Four-membered rings of tetrahedra with two additional terminal phosphate groups are formed by condensation of two trinuclear units P 0 1/ 20 3-B 0 3/ 2(0 H)-P 0 2/ 20 2. Fe3+ is in an octahedral and K+ in an irregularly 10-fold coordination by oxygen. 
  Reference    Z. Naturforsch. 53b, 165—170 (1998); eingegangen am 13. Oktober 1997 
  Published    1998 
  Keywords    Boron, Tetrahedral Anions, Phosphorus 
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 Identifier    ZNB-1998-53b-0165 
 Volume    53 
184Author    UpendraM. Tripathi, Annette Schier, Hubert SchmidbaurRequires cookie*
 Title    (Triphenylarsine)gold(I) Complexes: Synthesis of an Oxonium Salt and Redistribution of the Arsine Ligands  
 Abstract    The reaction of [(Ph3As)AuCl] with Ag20 in the presence of NaBF4 in tetrahydrofuran affords three products, identified as [(Ph3As)4.Au]BF4 (40.3%), [(Ph3As)2Au]BF4 (16.4%) and {[(Ph3As)Au]3 0 }BF4 (17.3%). The properties of the main product agree well with recent literature data. The other two compounds are new and have been identified by their analytical, spectroscopic, and crystallographic data. The structures are isomorphous with those of the analogous Ph^P complexes. Variations in the stabilities are discussed in terms of kinetic and thermodynamic effects. 
  Reference    Z. Naturforsch. 53b, 171—174 (1998); received December 23 1997 
  Published    1998 
  Keywords    Gold(I) Complexes, Arsine Complexes, Oxonium Salts, Gold Clusters 
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 Identifier    ZNB-1998-53b-0171 
 Volume    53 
185Author    C. Hennig, H. OppermannRequires cookie*
 Title    Thermische Zersetzung und Lösungskalorimetrie von Ammoniumneodymchloriden Thermal Decomposition and Solution Calorimetry of Ammonium Neodymium Chlorides  
 Abstract    The thermodynamical data of ammonium neodymium chlorides (NH4)2NdCl5 and NH4Nd2Cl7 were derived by the determination of their decomposition equilibria by total pres­ sure measurements. Moreover, solution calorimetry was applied. The enthalpies of formation of these phases were calculated from their heats of solution and from the enthalpies of formation and the heats of solution of NdCl3 and NH4C1. D ata by total pressure measurement: Z\H£((NH4)2NdCl5,f)298) = — 412,5 dh 3,6 kcal/mol; S°((NH4)2NdCl5 f 298) = 80,1 ± 5,8 cal/K m ol; Z\H£(NH4Nd2Cl7,f,298) = -579,5 ± 3,5 kcal/mol; S°(NH4Nd2Cl7,f,298) 101,8 ± 5,6 cal/K mol. D ata by solution calorim etry: 4H £(N dC l3;f,298) -251,2 ± 0,7 kcal/mol; /\H £((N H 4)2NdCl5,f,298) = -105,5 ± 1,0 kcal/mol; Z\Hß(NH4Nd2Cl7f 298) = -576,8 ± 1,7 kcal/mol. 
  Reference    Z. Naturforsch. 53b, 175—183 (1998); eingegangen am 16. Oktober 1997 
  Published    1998 
  Keywords    Ammonium Neodymium Chlorides, Neodymium Chloride, Thermodynamical Data, Solution Calorimetry, Heat of Solution 
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 Identifier    ZNB-1998-53b-0175 
 Volume    53 
186Author    J. Feller1, H. Oppermann, M. Binnewiesb, E. MilkebRequires cookie*
 Title    On the Chemical Transport o f Rhenium and Rhenium Oxides  
 Abstract    Synthesis and single crystal growth by chemical transport reactions o f rhenium and rhenium oxides is reported. Several transport agents like the mercury halides H gC l2, HgBr2, H g l2, tellurium tetrachloride and iodine have been employed the transport o f the rhenium compounds. Mass spectrometric experiments gave informations about the composition o f the gas phase. The transport reactions were traced by calculations based on the knowledge o f the gas phase species and their thermodynamical data. 
  Reference    Z. Naturforsch. 53b, 184—190 (1998); eingegangen am 7. November 1997 
  Published    1998 
  Keywords    Chemical Transport Reaction, Rhenium Oxides, Thermodynamic Calculation, Mass Spectra 
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 Identifier    ZNB-1998-53b-0184 
 Volume    53 
187Author    Andreas Böhm, Bernhard Schreiner, Norbert Steiner, Reinhold Urban, Karlheinz Sünkel, Kurt Polborn, Wolfgang BeckRequires cookie*
 Title    Cyclopalladierte Schiff-Basen von a-Am inosäure-und Peptidestem Metal Complexes o f Biologically Important Ligands, X C V III [1] Cyclopalladated Schiff Bases o f a-Am ino Acid and Peptide Esters  
 Abstract    The reactions o f Schiff bases from benzophenone and a-amino acid and peptide esters with tetrachloropalladate afford the chloro bridged ortho palladated complexes 1-8 and 11-18. The chloro bridges are cleaved by P and N donors (P R 3, pyridine, a-amino acid ester) to give the 
  Reference    Z. Naturforsch. 53b, 191—205 (1998); eingegangen am 21. Oktober 1997 
  Published    1998 
  Keywords    N-Diphenylmethylene a-Am ino Acid Esters, Peptide Esters, Ortho Palladation 
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 Identifier    ZNB-1998-53b-0191 
 Volume    53 
188Author    D. Sonnak, W. PreetzRequires cookie*
 Title    Kristallstrukturen der iodierten c/osö-Hexaborate fraws-(Ph4P )2[B 6H 4I2], m6T-(Ph4P )2[B 6H 3I3] * 2 C H 2C12, *rörts-(Ph4P )2[B 6H 2I4] * 2 C H 3C N  
 Abstract    (C H 2Py2)[B 6H I5] Crystal Structures o f the Iodized c/oso-Hexaborates rrans-(Ph4P)2[B6H4lT], mer-(Ph4P)2[B6H 3I3] • 2 CH2C12, frans-(Ph4P)2[B6H2I4] • 2 CH 3CN and (C H 2Py2)[B 6H I5] Iodized c/o5o-Hexaborates(2 -), Crystal Structure X-ray structure determinations have been performed on single crystals o f trans-(Ph4P)2-[B 6H 4I2] (1) (triclinic, space group P I, a = 9.9680(12), b = 10.9690(11), c = 11.0470(14) A, 
  Reference    Z. Naturforsch. 53b, 206—210 (1998); eingegangen am 7. November 1997 
  Published    1998 
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 Identifier    ZNB-1998-53b-0206 
 Volume    53 
189Author    Ulrich Nagel, Christoph RollerRequires cookie*
 Title    Enantioselektive Katalyse, X V III [1] Der Einfluß nicht koordinierter Stereozentren auf die enantioselektive Hydrierung Enantioselective Catalysis, X V III [1] The Influence o f Non-Coordinated Stereocenters on the Enantioselective Hydrogenation  
 Abstract    Enantioselective Hydrogenation, Chiral Phosphane Oxides, Z-a-Acetamidocinnamic Acid, K e­ tones, Rhodium Catalyst 3,4-Bis{[2-(methyl-phenyl-oxophosphanyl)-ethyl]phenyl-phosphanyl}pyrrolidines have be­ en synthesized by Michael Addition from the corresponding methyl-phenyl-vinyl-phosphane oxides and 3,4-bis(phenylphosphino)pyrrolidines. For purification o f the ligands palladium complexes were used and with the enantiomerically pure ligands Rh complexes have been pre­ pared. The catalyst has 6 stereogenic centers. In the hydrogenation o f Z-ct-acetamidocinnamic acid all six stereogenic centers have an influence on the enantioselectivity. The influence is strongest from the C stereocenters o f the pyrrolidine ring. Less important are the stereogenic centers on the coordinated P atoms. The influence o f the stereocenters on the non-coordinated 
  Reference    Z. Naturforsch. 53b, 211—223 (1998); eingegangen am 10. Oktober 1997 
  Published    1998 
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 Identifier    ZNB-1998-53b-0211 
 Volume    53 
190Author    Horst Kunkely, AmD. VoglerRequires cookie*
 Title    Photoreactivity of Titanocene Pentasulfide  
 Abstract    The electronic spectrum o f Cp2TiSs shows a long-wavelength absorption at Am ax = 492 nm which is assigned to the lowest-energy S52~ ^ T i IV ligand-to-metal charge transfer (L M C T) transition. The photolysis o f the complex in C H 2CI2 leads to the formation o f Cp2T iC l2 and elemental sulfur. It is suggested that L M C T excitation initiates a reductive elimination with the extrusion o f S5 while the reduced titanocene is reoxidized by the solvent. 
  Reference    Z. Naturforsch. 53b, 224—226 (1998); received December 12 1997 
  Published    1998 
  Keywords    Charge Transfer, Titanium Complexes, Sulfide Complexes, Photochemistry 
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 Identifier    ZNB-1998-53b-0224 
 Volume    53 
191Author    K. Dallmann, W. PreetzRequires cookie*
 Title    Darstellung und Schwingungsspektren von  
 Abstract    cis-und fraws-[OsXY(acac)2], X i-Y = Cl, Br, I sowie Normalkoordinatenanalyse von ^ra«s-[O sClBr(acac)2] Synthesis and Vibrational Spectra o f cis-and 7ra/w-[OsXY(acac)2], X ■=/■ Y = Cl, Br, I, and Normal Coordinate Analysis o f frans-[OsClBr(acac)2] Dihalogeno-bis(acetylacetonato)osmium(IV), IR Data, Raman Data, Normal Coordinate Analysis, trans Influence In the reaction o f K 2 [O sX 3 Y 3] with boiling water/acetylacetone (1:1) the six mixed com­ plexes cis-and trans-[O sX2 (acac)2] (X ^ Y = Cl, Br, I) are formed, which have been purified by column chromatography with toluene on silica gel. The IR and Raman spectra (10 K) show the intraligand vibrations o f the acac groups with nearly constant frequencies and the stretching vibrations o f OsO in the range 460-696, o f OsCl at 315-345, o f OsBr at 210-225, and o f Osl at 160-175 cm-1 . A normal coordinate analysis based on a modified valence force field was performed for rra«5-[OsClBr(acac)2] and the vibrational modes have been assigned. With a set o f 32 force constants, taking into account the intraligand vibrations, a good agreement between observed and calculated frequencies has been achieved. The valence force constants are f d (O sC l*) = 1.75, fd(OsBr') = 1.63 and fd (O sO) = 3.27 mdyn/A. 
  Reference    Z. Naturforsch. 53b, 227—231 (1998); eingegangen am 26. November 1997 
  Published    1998 
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 Identifier    ZNB-1998-53b-0227 
 Volume    53 
192Author    K. Dallmann, W. PreetzRequires cookie*
 Title      
 Abstract    Normalkoordinatenanalyse von [Os(acac)3] Synthesis, Crystal Structure, Vibrational Spectra, and Normal Coordinate Analysis o f [Os(acac)3] In the reaction o f K 2[O sCl6] with boiling water/acetylacetone (1:1) a mixture o f different chloro-acetylacetonato complexes is formed, from which [Os(acac)3] can be isolated by column chromatography with dichloromethane on silica gel. The crystal structure o f [Os(acac)3] (m o­ noclinic, space group P2,/c,a = 13.968(5), b = l . 517(5), c = 16.455(5) A ,ß = 98.939(5)°, Z = 4) has been determined by single crystal X-ray diffraction analysis. High resolution IR and Raman spectra were measured at low temperature (10 K). Based on the molecular parameters o f the X-ray structure determination a normal coordinate analysis has been performed and the normal modes o f vibration have been assigned. With a set o f 32 force constants, taking into account the intraligand vibrations, a good agreement between observed and calculated frequencies has been achieved. The valence force constants are fd(OsO) = 3.19 and fd(O C) = 6.74 mdyn/A. 
  Reference    Z. Naturforsch. 53b, 232—238 (1998); eingegangen am 26. November 1997 
  Published    1998 
  Keywords    Tris(acetylacetonato)osmium(III), Crystal Structure, IR Data, Raman Data, Normal Coordinate Analysis 
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 Identifier    ZNB-1998-53b-0232 
 Volume    53 
193Author    Regina Bettenhausen, Wolfgang Milius, Wolfgang SchnickRequires cookie*
 Title    Synthese und Kristallstruktur von [H2NMe2]+[(Me2 NH)2 TiCl4 ]_ Synthesis and Crystal Structure of [H2NMe2]+[(Me2NH)2TiCl4]~  
 Abstract    The title compound has been synthesized as a green solid by the reaction of M eCl2 SiNHSiM e3 and Ti(NM e2)4 in CH2C12. The crystal structure was determined by single crystal X-ray methods at room temperature (C2/c, a = 1825,7(4), b = 909,9(2), c = 1116,1(2) pm, ß = 125,09(3)°, Z = A,R\= 0,047, wR2 = 0,147) to be an ionic salt [H2NMe2]+[(Me2NH)2TiCl4]" . The central titanium(III) atom of the anion is bound to four Cl atoms and weakly coordinated by two Me2NH ligands. 
  Reference    Z. Naturforsch. 53b, 239—241 (1998); eingegangen am 20. November 1997 
  Published    1998 
  Keywords    N-Silyl Amides, Crystal Structure, Titanium 
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 Identifier    ZNB-1998-53b-0239 
 Volume    53 
194Author    Antje Albert, Dietrich MootzRequires cookie*
 Title    8-Krone-6 und kleine Carbonsäuren. Bildung und Struktur binärer Addukte mit Ameisen-und Essigsäure sowie ternärer mit Essigsäure und Wasser 18-Crown-6 and Small Carboxylic Acids. Formation and Structure of Binary Adducts with Formic and Acetic Acid, as well as Ternary Ones with Acetic Acid and Water  
 Abstract    The melting diagrams of the binary systems 18-crown-6/formic acid and 18-crown-6/acetic acid have been set up and the crystal structures of the adducts 18C6 • 2 HCOOH (1, space group P 2 !/c with Z = 2 formula units per unit cell) and 18C6 • 2 CH 3COOH (2, C2/m, Z = 2) determined. Furthermore three ternary phases, 18C6 • CH3COOH • H20 (3, P2!/c, Z = 4) and dimorphic 18C6 • 2 C H 3COOH • 4 H 20 (high temperature form 4, P2,/n, Z = 2; low temperature form 5, P2|/n, Z = 2) have been characterized in the same way. In each structure the crown ether molecule has the (pseudo) D3d conformation common for many of its complexes. Various aspects of the intermolecular hydrogen bonding are described. 
  Reference    Z. Naturforsch. 53b, 242—248 (1998); eingegangen am 29. Oktober 1997 
  Published    1998 
  Keywords    Acetic Acid, Crown Ether, Formic Acid, Hydrate, Melting Diagram 
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 Identifier    ZNB-1998-53b-0242 
 Volume    53 
195Author    Z. NaturforschRequires cookie*
 Title    The Promotive Properties of Alkali Metal Nitrate Melts for the Partial Oxidation of Methane to Methanol  
 Abstract    B o r-Jih L ee, S higeo K itsu k aw a, S h u k u ji A sa k u ra * , K en z o F u k u d a D epartm ent (Na, K)N 0 3 melts of various ratios were used as prom oters for the partial oxidation of methane to methanol. Experiments were perform ed in a flow reactor system under atmo­ spheric pressure and at various tem peratures in the range of 525-600 °C. The influence of reaction temperature, melt composition, and reduced oxygen species on m ethane conversion and methanol selectivity were investigated systematically. The major reaction products were CH 3O H, CO, C 0 2, and trace amounts of C2H 6 and C2H 4. A m ethane conversion of 1.8-12.4% and a methanol selectivity of 0.4-14.1% were obtained under these reaction condi­ tions. Binary melts could achieve higher m ethanol selectivity than a single melt. The amounts of reduced oxygen species 0 2~ and 0 22-were estimated from thermochemical data according to the ion equilibrium in molten nitrates. The promotive effect of nitrate melts was confirmed and the results indicate that superoxide 0 2~ plays an im portant role for methanol formation. 
  Reference    Z. Naturforsch. 53b, 249—255 (1998); received O ctober 7 1997 
  Published    1998 
  Keywords    Partial Oxidation, Conversion, Selectivity, Molten Salt, Reduced Oxygen Species 
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 Identifier    ZNB-1998-53b-0249 
 Volume    53 
196Author    E. Rre, P.A M W IlliamRequires cookie*
 Title    Interaction of the Vanadyl(IV) Cation with L-Ascorbic Acid and Related Systems  
 Abstract    The interaction of V 0 2+ with L-ascorbic acid and dehydroascorbic acid was investigated by electronic spectroscopy in solution at different pH values. In the case of ascorbic acid, two different solid complexes containing one or two m onodeprotonated ascorbate ligands could be isolated and characterized. With dehydroascorbic acid, interaction begins at pH = 4 but at higher pH values the ligand is hydrolysed irreversibly, generating 2,3-diketogulonic acid. A solid complex containing this ligand could be precipitated at pH = 7. Its spectroscopic behavior confirms the interaction of the cation with an enolised form of the acid. 
  Reference    Z. Naturforsch. 53b, 256—262 (1998); received O ctober 24 1997 
  Published    1998 
  Keywords    Vanadyl(IV), Ascorbic Acid, Oxidation Products, Solution Interactions, Solid Complexes 
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 Identifier    ZNB-1998-53b-0256 
 Volume    53 
197Author    Z. NaturforschRequires cookie*
 Title    Untersuchungen an Polyhalogeniden, X X X IY  
 Abstract    [1] Cäsium(18-Krone-6)dichloroiodat(I), [Cs(C12H 240 6)]IC12 S tu d ies o n P olyhalides, X X X IV [1] C e siu m (1 8 -cro w n -6)d ich lo ro io d ate , [C s(C 12H 240 6)]IC12 M e rv a t E l E ssa w i3, K arl-F rie d ric h T e b b e * b a Chemical D epartm ent, The new compound [Cs(18-crown-6)]ICl2 has been prepared by the reaction of cesium chloride and 18-crown-6 with iodine chloride in ethanol and structurally characterized by X-ray diffrac­ tion methods. The geometries of the cation [Cs(18-crown-6)]+ and of the anion IC12~ are as expected. 
  Reference    Z. Naturforsch. 53b, 263—265 (1998); eingegangen am 5. November 1997 
  Published    1998 
  Keywords    Polyhalogenide, Dichloroiodate, Crown Complex, Cesium Compound, Crystal Structure 
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 Identifier    ZNB-1998-53b-0263_n 
 Volume    53 
198Author    Ulrich Nagel, Christoph RollerRequires cookie*
 Title    Enantioselective Catalysis, XVII [1], Enantioselective Catalytic Hydrogenation of Unfunctionalized Ketones  
 Abstract    Three diastereomeric rhodium bisphosphane complexes have been applied to asymmetric hydrogenation of unfunctionalized, non-chelating aliphatic and aromatic ketones. The ee values o f the catalysis products differ considerably for the diastereomerical catalysts. 70% ee were obtained in hydrogenating butyrophenone, and 83.7% ee for pinacoline. The results depend strongly on the solvent used. 
  Reference    Z. Naturforsch. 53b, 267—270 (1998); received January 15 1998 
  Published    1998 
  Keywords    Enantioselective Hydrogenation, Unfunctionalized Ketones, Rhodium, Salt Effect, Solvent Effect 
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 Identifier    ZNB-1998-53b-0267 
 Volume    53 
199Author    B. Steuer, W. PreetzRequires cookie*
 Title    Isoselenocyanatoborate -Kristallstrukturen von (/i-Bu4N)[BH(NCSe)3] und (Ph4P)[B3H7(NCSe)] Isoselenocyanatoborates -Crystal Structures of (n-Bu4N)[BH(NCSe)3] and (Ph4P)[B3H7(NCSe)]  
 Abstract    Triisoselenocyanatohydroborate(1 -), Isoselenocyanato-heptahydrotriborate(1 -), Crystal Structure The treatment of [B6 H6]2-with an excess of (SCN)2 in dichloromethane in the presence of solid KOH gives the hexaisoselenocyanatodiborate anion [B2(NCSe)6]2~ as an intermediate (<$(11B) = -10.3 ppm), from which [BH(NCSe)3] " and elemental selenium are formed. The X-ray structure determinations on single crystals of (rc-Bu4N)2[BH(NCSe)3] (1) (triclinic, space group P i with a = 8.512(2), b = 10.885(3), c = 14.895(4) Ä, a = 79.52(2), ß = 74.86(2), 7 = 86.768(2)°, Z = 2) and (Ph4P)[B3H7(NCSe)] (2) (monoclinic, space group C2, a = 7.686(5), b = 10.366(3), c = 17.533(3) A, ß = 108.89°, Z = 4) show that the selenocyanate groups are coordinated exclusively via the N atoms with average bond lengths of B-N = 1.52, C-N = 1.15, C-Se = 1.75 A and angles N-C-Se = 179°, B-N-C = 168.7 -176.8°. The N-B-N angles o f 1 range from 107.5 to 109.5°. 
  Reference    Z. Naturforsch. 53b, 271—274 (1998); eingegangen am 18. Dezember 1997 
  Published    1998 
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 Identifier    ZNB-1998-53b-0271 
 Volume    53 
200Author    Wolfgang Banße, Jana Fliegner, Stefan Sawusch, Uwe Schilde, Erhard UhlemannRequires cookie*
 Title    Redoxreaktionen von Molybdänverbindungen mit Bis(2-salicyliden- aniinophenvl Klisulfid. Kristallstruktur von Salicylaldehyd-2-mercapto- anilato(2-)-triphenylphosphanoxid-dioxomolybdän(VI) Redox Reactions of Molybdenum Compounds with Bis(2-salicylidene-aminophenyl)disulfide. Crystal Structure of Salicylaldehyde-2-mercaptoanilato(2-)-triphenylphosphaneoxide-dioxo- molybdenum(VI)  
 Abstract    Molybdenum Chelates, Ligand Exchange Reactions, Bis(2-salicylideneaminophenyl)-disulfide, Salicylaldehyde-2-mercaptoanilato(2-)-triphenylphosphaneoxide-dioxomolybdenum(VI), Crystal Structure The reactions of M o(CO)6, Mo(acac)2(NO)2, and M o 0 2(acac) 2 with bis(2-salicylidene-aminophenyl)disulfide in the presence of triphenylphosphane have been studied. The crystal structure of salicylaldehyde-2-mercaptoanilato(2-)-triphenylphosphaneoxide-dioxomolybdenum(VI) was determined by X-ray analysis. 
  Reference    Z. Naturforsch. 53b, 275—278 (1998); eingegangen am 23. Dezember 1997 
  Published    1998 
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 Identifier    ZNB-1998-53b-0275 
 Volume    53 
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