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1991 (265)
61Author    Requires cookie*
 Title    D ie Kristallstruktur von [(C H 3)4N ]FeF4 * H 20 mit einem di(/i-fluoro)-verbrückten [Fe2F8(H 20 ) 2]2 -Anion  
  Reference    Z. Naturforsch. 46b, 395 (1991) 
  Published    1991 
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 Identifier    ZNB-1991-46b-0395_n 
 Volume    46 
62Author    J. Voss, M. Altrogge, H. Wilkes, W. FranckeRequires cookie*
 Title    Electroreduction of Organic Compounds, XVIII [1] 2H* 2e~ / 4H*4e~ -HC I / -2H C I -2 .2 0 V / -2 .3 0 V Electrochemical Dehalogenation of Chlorinated Dibenzofurans and Dibenzo-/;-dioxins in Methanol  
  Reference    Z. Naturforsch. 46b, 400 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0400_n.pdf 
 Identifier    ZNB-1991-46b-0400_n 
 Volume    46 
63Author    Requires cookie*
 Title    Alkoxigermanate(II), -stannate(II) und -plumbate(II) zweiwertiger Metallionen, I [1]  
  Reference    Z. Naturforsch. 46b, 403 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0403.pdf 
 Identifier    ZNB-1991-46b-0403 
 Volume    46 
64Author    Requires cookie*
 Title    Niob-Stickstoff-Verbindungen: Synthese und Struktur der Halbsandwichkomplexe Ph3P = N -N b ( i/5-C5EtM e4)Cl3 und [(i^-C5EtMe4)Cl3N b -N = P P h 2l2C2H 2  
  Reference    Z. Naturforsch. 46b, 425 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0425.pdf 
 Identifier    ZNB-1991-46b-0425 
 Volume    46 
65Author    Ekkehard Lindner, Johannes DettingerRequires cookie*
 Title    Neuartige basische Liganden für die homogenkatalytische Methanolcarbonylierung, XXXI [1] Kationische Bis(Ether-Phosphan)metall-Komplexe der Nickeltriade mit fluktuierendem Verhalten Novel Basic Ligands for the Homogeneous Catalytic M ethanol Carbonylation, XXXI [1] Cationic Bis(Ether-Phosphine)M etal Complexes of the Nickel Triad with Fluxional Behavior  
 Abstract    In stitu t für A norganische Chem ie der U niversität T übingen, A u f der M orgenstelle 18, D-7400 T übingen 1 
  Reference    Z. Naturforsch. 46b, 432 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0432.pdf 
 Identifier    ZNB-1991-46b-0432 
 Volume    46 
66Author    Willi Brandt, Joachim Wirbser, AnneK. Powell, Heinrich VahrenkampRequires cookie*
 Title    Zinkkomplexe des Liganden Tris(methylaminomethyl)-ethan Zinc Complexes of the Ligand Tris(methylaminomethyl)ethane  
 Abstract    Institut fü r A norganische und A nalytische C hem ie der U niversität F reiburg, A lbertstraß e 21, D-7800 F reib u rg Zinc C om plexes, T rid en tate L igand, P rep aratio n , S tructure D eterm ination T he title ligand C H 3C (C H 2-N H C H 3)3 was used to prepare com plexes w ith zinc salts. In a d ­ dition to the know n 1 :1 com plexes o f Z n C l2 and Z n B r2, those o f Z n l2, Z n (S C N)2, Z n (C H 3C O O)2, and Z n (N 0 3)2, an d the bis-ligand com plex o f Z n(C 104)2 were o b tain ed and characterized. C rystal stru ctu re determ in atio n s revealed a tetrah ed ral co o rd in a tio n with two nitrogen ato m s o f the ligand an d tw o anions bo u n d to zinc fo r the acetate com plex an d for the thiocyan ate com plex, upon crystallization o f which the ligand was converted to an acetone am inal. In the bis-ligand zinc perchlorate com plex the ligand is trid en tate, a n d zinc has an o ctahedral co o rd in atio n . 
  Reference    Z. Naturforsch. 46b, 440 (1991); eingegangen am 24. A ugust 1990 
  Published    1991 
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 Identifier    ZNB-1991-46b-0440 
 Volume    46 
67Author    JonR. Dilworth, Panna Jobanputra, RussellM. ThomRequires cookie*
 Title    Crystal Structure of a Diazenido-Dithiocarbamate Complex of Technetium, [Tc(NNC6H4Cl)((CH3)2N C S2)2(PPh3)|  
  Reference    Z. Naturforsch. 46b, 449 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0449.pdf 
 Identifier    ZNB-1991-46b-0449 
 Volume    46 
68Author    Ulrich Abram, Sonja AbramRequires cookie*
 Title    Synthesis, Characterization and Crystal Structure of {N-(2-Mercaptoacetyl)-N'-[4-(pentene-3-one-2)|ethane-l,2- diaminato}oxotechnetium(V)  
  Reference    Z. Naturforsch. 46b, 453 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0453.pdf 
 Identifier    ZNB-1991-46b-0453 
 Volume    46 
69Author    Michael Rannenberg, Johann WeidleinRequires cookie*
 Title    Methylzinn-und Methylindium-bis(trimethylsilyl)amide Methyltin and Methylindium Bis(trimethylsilyl)amides  
 Abstract    In stitu t für A norganische Chem ie d er U n iversität S tu ttg art, P faffenw aldring 55, D-7000 S tu ttg art 80 Axel Obermeyer 
  Reference    Z. Naturforsch. 46b, 459 (1991) 
  Published    1991 
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 Identifier    ZNB-1991-46b-0459 
 Volume    46 
70Author    Requires cookie*
 Title    Dimere und polymere Kupfer(I)-Komplexe von Dithiocarbaminsäureestern. Strukturen von [CuI(L1)2]2 und [CuC1(L2)212, [CuCKL1)!« und |CuI(L2)]n (L 1 = N-Methyl-S-methyldithiocarbaminsäureester, L2 = N-Phenyl-S-methyl- dithiocarbaminsäureester)  
  Reference    Z. Naturforsch. 46b, 468 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0468.pdf 
 Identifier    ZNB-1991-46b-0468 
 Volume    46 
71Author    U. Lf Thewalt, Reinhard FriedrichRequires cookie*
 Title    Cp2Ti,v-Komplexe mit Oximatoliganden Cp2TiIV Complexes with Oxim ato Ligands  
 Abstract    The reaction of Cp2TiCl2 with oximes in the two phase system (CHC13, Cp2TiCl2)/(H20 , NaOH, oxime) leads to ionic complexes of the type [Cp2TiIV (H20)(oximato)]+X". Several com­ plexes of this type were prepared. They are surprisingly stable against air and water. The fol­ lowing compounds are described in detail: [Cp2Ti(H2O)(ONC6H l0)]NO3 (8) containing a cy-clohexanoneoximato ligand, and two complexes with 1,4-cyclohexanedionedioximato ligands, namely the mononuclear complex [Cp2Ti(H20)(0 N C 6H8N0H)]Cl • H20 (9) and the dinuclear complex [Cp,Ti(H20)(0 N C 6H8N 0)(H ,0)TiC p2](N 0 3)2-4H20 (10). X-ray structure determi­ nations show, that the ON fragment of the oximato ligand acts as side-on bonded three-elec­ tron donating ligand. The Ti atom thus has an 18-electron configuration. Einführung 
  Reference    Z. Naturforsch. 46b, 475—482 (1991); eingegangen am 9. Oktober 1990 
  Published    1991 
  Keywords    Titanium Complexes, Organotitanium Compounds, Oximato Complexes 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0475.pdf 
 Identifier    ZNB-1991-46b-0475 
 Volume    46 
72Author    Gabriele Schatte, Helge WillnerRequires cookie*
 Title    Die Wechselwirkung von N 3F mit Lewis-Säuren und HF. N 3F als möglicher Vorläufer für die Synthese von N 3+-Salzen The Interaction of N 3F with Lewis-Acids and HF. N 3F as Possible Precursor for the Synthesis of N 3+ Salts  
 Abstract    Triazadienyl fluoride, N 3F, forms stable adducts with BF3 and AsF5 at low temperatures, as demonstrated by infrared measurements. The Lewis acids are bonded to the Na-atom of N 3F, as deduced from the data for 15N-isotopically enriched N 3F. The basicity of N 3F is comparable to that of ethine and ethene, according to the HF stretching frequency of the N 3F/HF complex isolated in an argon matrix. Despite the low NF bond energy (<150 kJ/mol), abstraction of the fluoride ion and formation of an N 3+ salt was not possible. The different behavior of N 3F and C1N3 towards Lewis acids is discussed. 
  Reference    Z. Naturforsch. 46b, 483—489 (1991); eingegangen am 3. September 1990 
  Published    1991 
  Keywords    Triazadienyl Fluoride, IR Spectra, Lewis Acids, Proton Affinity 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0483.pdf 
 Identifier    ZNB-1991-46b-0483 
 Volume    46 
73Author    Eberhard Bessler, BrowdoM. Arins Barbosa, Wolfgang Hiller, Johann WeidleinRequires cookie*
 Title    Synthese und Eigenschaften von Tetrakis(trimethylsilylisocyanid)nickel(0), N i(C = N -S iM e 3)4 Synthesis and Properties of Tetrakis(trimethylsilylisocyanide)nickel(0), N i(C = N -S iM e 3)4  
 Abstract    Ni(CNSiMe3)4 (Me = CH,), the first homoleptic isocyanosilane complex, has been prepared by reaction of bis(1,5-cyclooctadiene)nickel(0) with trimethylcyanosilane in ether and charac­ terized by its infrared, Raman spectra, ,3C NMR spectra. 
  Reference    Z. Naturforsch. 46b, 490—494 (1991); eingegangen am 8. November 1990 
  Published    1991 
  Keywords    Tetrakis(trimethylsilylisocyanide)nickcl(0), Synthesis, Vibrational Spectra, 13C NMR Spectra 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0490.pdf 
 Identifier    ZNB-1991-46b-0490 
 Volume    46 
74Author    Rainer Bartscha, O. Thm Ar Stelzerb, Reinhard SchmRequires cookie*
 Title    Dialkylaminosubstituierte Phosphiniminophosphonium-Organofluorphosphate und Mono-bzw. Dichlorphosphazene Dialkylamino Substituted Phosphine Im inophosphonium Organofluorophosphates and M ono-and Dichlorophosphazenes N-Trimethylsilylphosphine Imines, Phosphorus(III) and Phosphorus(V) Halides, Organofluorophosphates, Mono-and Dichlorophosphazenes  
 Abstract    The reaction of N-trimethylsilylphosphine imines, Me3SiN = PR'R2R3, and Me3SiN = P(RlR2) -N = PR'R2R3 (R1, R2, R3 = hydrocarbon or NR-, groups) with the fluoro-phosphoranes PhPF4 and Ph2PF3 and with phosphorus trichloride has furnished phosphine iminophosphonium organofluorophosphates, involving the anions [PhPF5]~ or [Ph2PF4]_, and mono-or dichlorophosphino diphosphazenes, respectively. The characterization of these com­ pounds by 'H, 19F and 3IP NMR spectroscopy is described. 
  Reference    Z. Naturforsch. 46b, 495—499 (1991); eingegangen am 13. Februar/21. August 1990 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0495.pdf 
 Identifier    ZNB-1991-46b-0495 
 Volume    46 
75Author    Max Herberhold, Guo-X In, Jin+, W. Alter Kremnitz, ArnoldL. Rheingold, BrianS. HaggertyRequires cookie*
 Title    Halfsandwich cyc/o-Pentasulfido and cyc/o-Pentaselenido Complexes, (ir, -C5M e5)lVl(NO)(E5) (E = S, Se; M = Cr, Mo, W)  
 Abstract    Polychalcogenido Complexes, cvr/o-Pentasulfido and cjr/o-Pentaselenido Chelate Ligands The reactions of the pentamethylcyclopentadienyl halfsandwich nitrosyl complexes Cp*Cr(NO)2I and Cp*M(NO)I2 (M = Mo, W) with either methanolic ammonium polysulfide solutions or hydrogen selenide solutions (generated by hydrolysis of Al2Se3) can be used to prepare cyc/o-pentachalcogenido compounds such as Cp*M(NO)(S5) (M = Cr (la), Mo (2a), W (3a)) and Cp*M(NO)(Se5) (M = Cr (lb). W (3b)). The chromium complex Cp*Cr(NO)(S5) (la) is also formed in high yield by photodecarbonylation of Cp*Cr(CO)2NO in acetonitriie solution in the presence of excess sulfur. An X-ray structure analysis of Cp*W(NO)(S5) (3a) revealed a cyclo-S5 chelate ligand in the chair conformation and an almost linear nitrosyl group. 
  Reference    Z. Naturforsch. 46b, 500—506 (1991); received October 23 1990 
  Published    1991 
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 Identifier    ZNB-1991-46b-0500 
 Volume    46 
76Author    R.Alf Fuchs, Peter KlüfersRequires cookie*
 Title    Heteronukleare Komplexverbindungen mit M etall-M etall-Bindungen, V [1]  
 Abstract    Umsetzungen mit [(NH3)2CuCo(CO)4l: Synthese und Struktur von |(PPh3)2CuCo(CO)4|, [Cu{P(OM e)3}4][Cu{Co(CO)4}2] und (Ph3P)2N |C u{C o(C O)4}2] H eteronuclear C o-ordination Com pounds with M e ta l-Metal-Bonds, V [1] Reactions with [(NH3)2CuCo(CO)4]: Synthesis and Structure of [(PPh3)2CuCo(CO)4], [Cu{ P(OM e)3}4][Cu{Co(CO)4}2] and (Ph3P)2N[Cu{Co(CO)4}2] The heteronuclear carbonyl complex [(NH3)2CuCo(CO)4] 1 reacts with the phosphane li­ gands PPh3, PEt3 and P(OMe)3. A dinuclear complex, [(PPh3)2CuCo(CO)4] 2, is formed with PPh3, while trinuclear anionic [Cu{Co(CO)4}2]~ species are formed with the other phosphane ligands. The crystal structure of 2 (C u-C o = 255.2(2) pm) and the structures of two com­ pounds with trinuclear anions, [Cu{P(OMe)3}4][Cu{Co(CO)4}^] 3 (C u-C o = 232.64(8) and 233.10(8) pm) and PPN[Cu{Co(CO)4}2] 6 (C u-C o = 238.1(l)"and 234.3(1) pm), have been determined by X-ray crystallography. The angle Cax-C o -C eq of tetracarbonyl cobalt com­ pounds (i.e. the deviation from tetrahedral geometry) depends on the charge of the Co(CO)4 fragment, as calculated with the electronegativity equalization scheme of Bratsch (J. Chem. Ed. 61, 588 (1984)). 
  Reference    Z. Naturforsch. 46b, 507—518 (1991); eingegangen am 18. September 1990 
  Published    1991 
  Keywords    Cobalt Carbonyl Complexes, Bi-and Trinuclear Copper Cobalt Compounds, Phosphorus Ligands, Crystal Structure, Electronegativity Equalization 
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 Identifier    ZNB-1991-46b-0507 
 Volume    46 
77Author    Frank Weller, Irene Pauls, K. Urt Dehnicke, Gerd BeckerRequires cookie*
 Title    Die  
 Abstract    Reaktionen von Wolframhexachlorid mit überschüssigem 2,2-Dimethylpropylidinphosphan; die Kristallstrukturen von WC15P2(C5H9)3, WC14P5(C5H 9)s und |C3(C4H9)3| +|WC1S(C4H9C -C C 4H9)|-The Reactions of Tungsten Hexachloride with Excess 2,2-Dimethylpropylidynephosphane; the Crystal Structures of WC15P2(C5H9)3, WC14P5(C5H 9)5, and [C3(C4H9)3]+[WC15(C4H9C = C C 4H 9)]- The reaction of tungsten hexachloride with excess 2,2-dimethylpropylidynephosphane, C4H9-C = P , leads to the tungsten phosphaalkyne clusters WC15P2(C5H9)3 and WC14P5(C5H9)5, as well as to the tris(/'-butyl)cyclopropenium pentachloro tungsten alkyne complex [C3(C4H9)3]+[WC15(C4H9C=CC4H9)]-. All complexes were characterized by X-ray structure determinations. WC15P2(C5H9)3: Space group P 2,/«, Z = 8, 4653 observed unique reflexions, R = 0.033. Lat­ tice dimensions at 20 C: a = 1577.8(2), b = 1661.3(1), c = 1869.8(2) pm, ß = 110.64(1)°. The compound has a molecular structure, in which the tungsten atom is surrounded by three chlo­ rine atoms, three carbon atoms with W -C distances of 182, 230, and 231 pm. and by one phosphorus atom with W -P = 246 pm. WC14P5(C5H9)5: Space group P2,/c, Z = 4, 3517 observed unique reflexions, R = 0.043. Lat­ tice dimensions at 20 °C: a = 1770.0(2), b = 1032.9(2), c = 1876.0(3) pm, ß = 102.86(1)°. The complex has a molecular structure, in which the tungsten atom is surrounded by two chlorine atoms, two carbon atoms with W -C distances of 189 and 215 pm, as well as by four phospho­ rus atoms with W -P distances of 242, 250, 264, and 268 pm. [C3(C4H9)3]*[WC15(C4H9C=CC4H9)] : Space group P2l/c', Z = 4, 3284 observed unique re­ flexions, R = 0.052. Lattice dimensions at 20 °C: a = 941.5(3), b = 1762.2(6), c = 1903.5(7) pm, ß = 92.27(3)°. The compound consists of tris(/-butyl)cyclopropenium ions, and anions [WC15(C4H9C=CC4H9)]_, in which the bis(r-butyl)alkyne ligand is coordinated side-on, corre­ sponding to a cyclopropene type structure with W -C distances of 198 pm. 
  Reference    Z. Naturforsch. 46b, 519—529 (1991); eingegangen am 8. November 1990 
  Published    1991 
  Keywords    Phosphaalkyne Clusters of Tungsten, Syntheses, Crystal Structure 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0519.pdf 
 Identifier    ZNB-1991-46b-0519 
 Volume    46 
78Author    Frederick Kurzer, JayantilalN. PatelRequires cookie*
 Title    Diisophorone and Related Compounds, Part 29 [1] 3-Aminodiisophorane Derivatives  
 Abstract    Amino-tricyclo[7.3.1.02-7]tridecanes, 3-Aminodiisophoranes, Diisophorone 3-Aminodiisophor-2(7)-en-l-ol and homologues are obtained from the readily accessible 3-ketones by reduction of their respective ketoximes, and are characterized as suitable deriva­ tives. The 3-(a>-phenylthioureido) compound undergoes cyclodehydration to a substituted 8,1 la-methanocycloocta[d,e][3.1]benzthiazine. The structures of the individual compounds are correlated with their assigned 13C NMR spectra. 
  Reference    Z. Naturforsch. 46b, 530—540 (1991); received October 25. 1990 
  Published    1991 
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 Identifier    ZNB-1991-46b-0530 
 Volume    46 
79Author    A. M. Kamal El-Deana, A.A A Tallab, ThA M Oham Eda, A. A. GeiesaRequires cookie*
 Title    Synthesis of Some Pyrazolopyridine Sulphonamide Derivatives  
 Abstract    The diazonium salt o f 3-aminopyrazolopyridine when treated with SO: and CuCU produces the corresponding sulphonyl chloride. The sulphonyl chloride chloride easily reacts with hy­ drazine hydrate, amm onia, aromatic or heterocyclic amines to produce the corresponding sul-phohydrazide, sulphonamide or N-sulphonam ide derivatives. Sulphohydrazide reacts with acetylacetone to produce pyrazoly pyrazolopyridinyl sulphone which is also obtained by reac­ tion o f sulphonyl chloride with dimethylpyrazole. The aminopyrazolopyridine can be converte into pyrazolopyridinthiole by its reacting with ethyl dithioxanthate. The pyrazolopyridinthiole reacts with alkyl halides or acrylonitrile to produce S-alkylated derivatives. 
  Reference    Z. Naturforsch. 46b, 541—5 (1991); received August 8 1990 
  Published    1991 
  Keywords    Sulphonam ides, Pyrazolopyridine, Meerwein Reaction 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0541.pdf 
 Identifier    ZNB-1991-46b-0541 
 Volume    46 
80Author    En Epr, M. Anfred, M. Äurer, H. Artm, B. Stegmann, DorisÄ. Ndert, Albrecht MannschreckRequires cookie*
 Title    EPR-und ENDOR-Untersuchungen von Benzo[c]phenanthrensemichinonen Investigations of Benzo[c]phenanthrene Semiquinones  
 Abstract    A series o f benzo[c]phenanthrene semiquinone diphenylthallium complexes was prepared in pyridine from the corresponding quinones. EPR, E ND O R and TRIPLE spectra provided the proton coupling constants and, in most cases, their assignments and their relative signs. The thallium splittings are discussed in terms o f the extent o f the twist in the sem iquinones and solvation o f the complexes. 
  Reference    Z. Naturforsch. 46b, 547 (1991); eingegangen am 18. Oktober 1990 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0547.pdf 
 Identifier    ZNB-1991-46b-0547 
 Volume    46 
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