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1992 (1)
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1Author    Z. NaturforschRequires cookie*
 Title    |2+31-Cycloadditionsreaktionen von  
 Abstract    Nitrilen mit Bis(triphenylphosphoranyliden)iminiumazid [2 + 3] C yclo-A ddition R eactions o f N itriles w ith B is(triphenylphosphoranyliden)im inium Azide Jörg Sunderm eyer, H erbert W. Roesky* und M athias N oltem eyer Cyanogen and the two isomers o f S (C N)4 ((2) and (3)) react with [Ph3PN PPh3]+N 3_ 
  Reference    (Z. Naturforsch. 45b, 77—7 [1990]; eingegangen am 18. September 1989) 
  Published    1990 
  Keywords    X-Ray Structure, Cyclo-Addition Reactions, Tetrazole Derivatives 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-0077.pdf 
 Identifier    ZNB-1990-45b-0077 
 Volume    45 
2Author    H. Erbert, W. Roesky, R. Ein, H. Ard, H. Asselbring, JoH. Annes, Lieberm Ann, M. Athias, N. Oltem EyerRequires cookie*
 Title    Untersuchungen an Benzamidinyl-2-phosphazen-Liganden Investigations on B enzam idinyl-2-phosphazen Ligands  
 Abstract    The new ligands (Me3Si)2N C(4-CF3C6H 4)N P(Ph)2N(SiM e3) (2) and (Me3Si)2NC(4-M e2N C 6H 4)N P(Ph)2N(SiM e3) (3) have been prepared from 4-CF3C6H4CN or 4-Me2N C 6H 4CN, respectively, with LiN(SiMe3)2, Ph^PCl and Me3SiN3. In solution, 2 as well as 3 form two isomers. Their structures (2 a, 2 b and 3 a, 3 b) were tentatively assigned on the basis of N M R investigations. Crystals of 2a and 3a are triclinic, space group P L Bond lengths and bond angles o f 2a and 3a are very similar. The influence of the para-substituents on the bonding properties are found to be negligible. 
  Reference    Z. Naturforsch. 45b, 1383—1387 (1990); eingegangen am 28. Februar 1990 
  Published    1990 
  Keywords    X-Ray Structure, Phosphorus-N itrogen, New Ligands 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1383.pdf 
 Identifier    ZNB-1990-45b-1383 
 Volume    45 
3Author    F. Rank Schrumpf, HerbertW. Roesky+, M. Athias NoltemeyerRequires cookie*
 Title    ( rf-C5Me5)T a F4 * H N = P Ph3 Preparation and Structure of the Adduct (7 5-C5M e5)TaF4 * HN = PPh3  
 Abstract    C p*TaF4 (1) (Cp* = ^5-C5M e5) forms a Lewis acid Lewis base adduct with the im inophos­ phorane H N = PPh3 (2). The adduct C p*TaF4-N H = PPh3 (3) is remarkably stable to thermal decom position. The X-ray crystal struc­ ture o f 3 was investigated. 
  Reference    Z. Naturforsch. 45b, 1600—1602 (1990); eingegangen am 7. Juni 1990 
  Published    1990 
  Keywords    Tantalum Fluoride, Lewis Acidity, Iminophosphorane, X-Ray Structure 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1600_n.pdf 
 Identifier    ZNB-1990-45b-1600_n 
 Volume    45 
4Author    H. L. Otter, H. W. Agner, A. A. Saleh, G.A C OrdellRequires cookie*
 Title    Potential Anticancer Agents, XI. X-Ray Structure Determination of Acantholide [1]  
 Abstract    The X-ray structure o f acantholide, a m elam polide sesquiterpene lactone from A canthosper­ mum glabratum (D C .) Willd. was determined by the aid o f direct methods. The com pound was cy­ totoxic but displayed no antitumor activity. Evaluation o f the X-ray and N M R data indicated that the same conformation exists in the solid state as in solution. 
  Reference    Z. Naturforsch. 34c, 677 (1979); received M ay 11 1979 
  Published    1979 
  Keywords    Acantholide, Acanthosperm um glabratum, X-Ray Structure, Cytotoxic Principle 
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 TEI-XML for    default:Reihe_C/34/ZNC-1979-34c-0677.pdf 
 Identifier    ZNC-1979-34c-0677 
 Volume    34 
5Author    The Stereochemistry, F. Silybin, Hermann Lotter, H. Ildebert, W. AgnerRequires cookie*
 Title    Zur Stereochemie von Silybin  
 Abstract    The X-ray Structure of Silybin from Silybum marianum G aertn. was determined. The com ­ pound was found to be a diastereom eric m ixture (1 : 1) in the benzodioxane part of the molecule explaining several tentative aspects about the structure known from NM R-m easurem ents and HPLC-separations. Einführung 
  Reference    Z. Naturforsch. 38c, 339—341 (1983); received February 22 1983 
  Published    1983 
  Keywords    Silybin, Silybum marianum, X-Ray Structure, Absolute Configuration 
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 TEI-XML for    default:Reihe_C/38/ZNC-1983-38c-0339.pdf 
 Identifier    ZNC-1983-38c-0339 
 Volume    38 
6Author    Wolfgang Tremel, Bernt Krebs, Klaus Greiwe, Wolfgang Simon, Hans-Oscar Stephan, Gerald HenkelRequires cookie*
 Title    [Mn(SPh)3Cl]2-, [Mn(SPh)3Br)2_, [Mn(SePh)4]2-, [Mn(TePh)4]2-, and ICo4(SPh)6Cl4l2-: New Mixed Halide/Thiolate and Chalcogenolate Complexes of Manganese and Cobalt  
 Abstract    The reactions of 1:1:1 m olar ratio mixtures of N aSPh/M nC l2/E t4NBr and N aSPh/CoCl2/ Et4NCl in methanol afford the com pounds [Et4N]4[Mn(SPh)3Br][Mn(SPh)3Cl] (1) and 
  Reference    Z. Naturforsch. 47b, 1580—1592 (1992); received February 7 1992 
  Published    1992 
  Keywords    Transition Metal Chalcogen Complexes, Synthesis, X-Ray Structure 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1580.pdf 
 Identifier    ZNB-1992-47b-1580 
 Volume    47 
7Author    HerbertW. Roesky, Pierre Schäfer, Mathias Noltemeyer, GeorgeM. SheldrickRequires cookie*
 Title    Zur Darstellung und Struktur des 1.3-Dichloro-5-N.N-dimethylamino-1.3-dithia-2.4.6-triazins Synthesis and Structure of l,3-Dichloro-5-N,N-dimethylamino-l,3-dithia-2,4,6-triazine  
 Abstract    The six membered ring of composition (CH3)2NCN3S2Cl2 8 a was prepared from N,N-dimethylguanidinhydrochloride and trithiadiazindichloride. 3 a was characterized on the basis of mass, 1 H, 13 C NMR spectra and X-ray structure analysis. Crystals of 3 a are monoclinic, space group P2i/c, with a — 660.3(6), b = 834.5(7), c = 1774.7(15) pm, ß = 112.83(6)° and Z = 4. The C2N unit lies approximately in the plane of the [-CNSNSN-] ring, with both Cl atoms on the same side of the ring. 
  Reference    Z. Naturforsch. 38b, 347—349 (1983); eingegangen am 16. September 1982 
  Published    1983 
  Keywords    Six Membered Ring, Carbon, Sulfur, Nitrogen, X-Ray Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0347.pdf 
 Identifier    ZNB-1983-38b-0347 
 Volume    38 
8Author    W. Olf, Peter Fehlhammer, Hans Hoffmeister, Borislav Boyadjiev, Thomas KolrepRequires cookie*
 Title    Bor-stabilisierte N,0-Carbene, II [1] Röntgenstrukturanalyse von (fra/i5-4,5-Dimethyloxazolidin-2-yliden)triphenylbor und N-Alkylierungen Boron Stabilized N,0-Carbenes, II [1] X-Ray Structure of (/rans-4,5-Dimethyloxazolidin-2-ylidene)triphenylboron and N-Alkylations  
 Abstract    The X-ray structure analysis of (?rartj,-4,5-dimethyloxazolidin-2-ylidene)triphenylboron reveals a stereochemistry of the carbene ligand which is almost identical with that in transition metal complexes. Deprotonation of triphenylboron stabilized oxazolidin-2-ylidenes with NaH leads to (oxazolin-2-ato)borates, which have been N-alkylated with [R30 +][BF4_] or R I under mild condi­ tions. 
  Reference    Z. Naturforsch. 44b, 917 (1989); eingegangen am 27. Dezember 1988/8. März 1989 
  Published    1989 
  Keywords    Non-Metal Stabilized Carbenes, Reactions at Coordinated Ligands, X-Ray Structure 
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 TEI-XML for    default:Reihe_B/44/ZNB-1989-44b-0917.pdf 
 Identifier    ZNB-1989-44b-0917 
 Volume    44 
9Author    HerbertW. Roesky, Habib Djarrah, Manfred Thomas, Berat Krebs, Gerald HenkelRequires cookie*
 Title    Oxidationsreaktionen von Phosphanen mit Schwefeldioxid Oxidation Reactions of Phosphanes with Sulfur Dioxide  
 Abstract    Sulfur dioxide can be used as an oxidizer in the reaction of Zn(S02)re(AsFe)2 and tetra-phenyldiphosphane. The resulting product is the tetraphenyldiphosphane dioxide complex of composition Zn[02P2(C6H5)4]3(AsF6)2 (1)-The same compound is formed by the direct reaction of the zinc salt with 02P2(C6Hs)4-When Zn(S02)«(AsF6)2 is treated with P[0 = P(0C2H5)2]3 in liquid S02, Zn{P[0 = P(0C2H5)2]3}2(AsF6)2 (2) is formed. The struc-ture of 2 was investigated by means of an X-ray single crystal analysis. 2 crystallizes in space group P~31c with a = b= 11.967(3) and c = 21.202(4) Ä. 
  Reference    Z. Naturforsch. 38b, 168—171 (1983); eingegangen am 25. Oktober 1982 
  Published    1983 
  Keywords    Zinc and Tungsten Complexes, X-ray Structure, 31 P NMR Spectra 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0168.pdf 
 Identifier    ZNB-1983-38b-0168 
 Volume    38 
10Author    Jochen Ellermann, FalkA. Knoch, KlausJ. MeierRequires cookie*
 Title    Chemie polyfunktioneller Moleküle, 106 [1] Kupfer(I)halogenid -Komplexe des Bis(diphenylphosphino)amins Chemistry o f Polyfunctional Molecules, 106 [1] Copper(I) Halide Complexes of Bis(diphenylphosphino)amine  
  Reference    Z. Naturforsch. 45b, 1657—1668 (1990); eingegangen am 29. Mai 1990 
  Published    1990 
  Keywords    Copper(I) Halides, Organophosphine Ligands, X-Ray Structure, Vibrational Spectra, N M R Spectra 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1657.pdf 
 Identifier    ZNB-1990-45b-1657 
 Volume    45 
11Author    Heinrich NöthRequires cookie*
 Title    Kristall-und Molekülstruktur von "Imido-tetraphenyl-dithiophosphinsäure" und Imido -tetraphenyl-diphosphinsäure Crystal and Molecular Structure of "Imido-tetraphenyl-dithio-phosphinic Acid" and Imido-tetraphenyl-diphosphinic Acid  
  Reference    Z. Naturforsch. 37b, 1491—1498 (1982); eingegangen am 14. Juni 1982 
  Published    1982 
  Keywords    X-ray Structures, Imido-tetraphenyl-diphosphinic Acid, Bis(diphenylthiophosphoryl)-amine, PNH/POH-Tautomerism 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-1491.pdf 
 Identifier    ZNB-1982-37b-1491 
 Volume    37 
12Author    Peter Hofmann, Alexander Sieber, Erich Beck, Ulrich SchubertRequires cookie*
 Title    Die Struktur vermeintlicher Di-und Triketone des 2.2.6.6-Tetramethylpiperidins: Mono-und Diketone des Pyrrolin-1 The Structure of Supposed Di-and Triketones of 2,2,6,6-Tetramethylpiperidine: Mono-and Diketones of Pyrroline-1  
  Reference    Z. Naturforsch. 38b, 1192—1198 (1983); eingegangen am 15. Juni 1983 
  Published    1983 
  Keywords    Triketopiperidines, 4, 5-Dihydropyrrol-3, 4-diones, UY-Photoelectron Spectra, MO Calculations, X-Ray Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1192.pdf 
 Identifier    ZNB-1983-38b-1192 
 Volume    38 
13Author    Heinrich Nöth, Siegfried WeberRequires cookie*
 Title    Beiträge zur Chemie des Bors, 137 [1] A Convenient Synthesis of an Amino-Imino-Borane and its Adducts with Boron Trichloride and Boron Tribromide  
 Abstract    Über eine einfache Synthese eines Amino-imino-borans und seiner Addukte mit Bortrichlorid und Bortribromid Contribution to the Chemistry of Boron, 137 [1] 
  Reference    Z. Naturforsch. 38b, 1460—1465 (1983); eingegangen am 2. August 1983 
  Published    1983 
  Keywords    2, 2, 6, 6 -Tetramethy lpiperidino-tert-butylimino -borane, Dibromboryl-(brom-2, 2, 6, 6-tetramethylpiperidinoboryl)-ier^-butylamine, X-Ray Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1460.pdf 
 Identifier    ZNB-1983-38b-1460 
 Volume    38 
14Author    E. Hanecker, H. NöthRequires cookie*
 Title    Beiträge zur Chemie des Bors, 163 [1] Die Molekülstruktur zweier Silaborazine Contributions to the Chemistry of Boron, 163 [1] The Molecular Structure of Two Silaborazines  
  Reference    Z. Naturforsch. 40b, 717—721 (1985); eingegangen am 4. Januar 1985 
  Published    1985 
  Keywords    2, 3, 4, 5, 6-Pentamethyl-l, l-diphenyl-l-silaborazine, 2, 4, 5, 6-Tetramethyl-l, l, 3, 3-tetraphenyl-l, 3-disilaborazine, X-Ray Structure 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0717.pdf 
 Identifier    ZNB-1985-40b-0717 
 Volume    40