Go toArchive
Browse byFacets
Bookbag ( 0 )
Facet   section ZfN Section B:Volume 031  [X]
Results  386 Items
Sorted by   
Publication Year
1976 (386)
81Author    Eugen Müller, Ernst Luppold, Werner WinterRequires cookie*
 Title    Contribution to the Chemistry of Tellurophene 2,5-Diphenyl-3,4-chloromethyl-tellurophene, 2,5-Diphenyl-3,4-hydroxymethyl-tellurophene, 2,5-Diphenyl-telluropheno-3,4-dicarbaldehyde  
  Reference    (Z. Naturforsch. 31b, 367—370 [1976]; eingegangen am 6. Oktober 1975) 
  Published    1976 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0367.pdf 
 Identifier    ZNB-1976-31b-0367 
 Volume    31 
82Author    Gert Zacharias, Hans JunekRequires cookie*
 Title    Synthesen mit Nitrilen, XLII Cyclisierungen azaloger Enaminoketone mit Malonsäuredinitril zu kondensierten Pyridazinen Syntheses with Nitriles, XLII Cj^elisations of Azalogous Enaminoketones with Malononitrile to Condensed Pyridazines  
  Reference    (Z. Naturforsch. 31b, 371—375 [1976]; eingegangen am 13. November 1975) 
  Published    1976 
  Keywords    Arylhydrazones, Cyclic 1, 3-Diketones, Malonitrile, Pyridazines, Cinnolines 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0371.pdf 
 Identifier    ZNB-1976-31b-0371 
 Volume    31 
83Author    Nazmi Abd, Elatife Kassab, Sanaa Osman Abdallah, Hamed Abdel, Reheem Ead, Doreya ZakiRequires cookie*
 Title    Some New Tetrahydrothiopyrano[2,3-d]thiazole-2-thione Derivatives and their Biological Activities 3-Phenyl-2,4  
  Reference    (Z. Naturforsch. 31b, 376—379 [1976]; received August 14 1975) 
  Published    1976 
  Keywords    thiazolidinedithiones, 1, 4-Cycloaddition, Heterodienes, Synthesis, Biological Activities 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0376.pdf 
 Identifier    ZNB-1976-31b-0376 
 Volume    31 
84Author    Nazmi Abd, Elatif Kassab, Sanaa Osman, Abd Alla, Hamed Abdel, Reheem EadRequires cookie*
 Title    Reactions with 2-Phenylhydrazono-4-thiazolidinone and its Derivatives Grignard Reagent, 2-Phenylhydrazono-4-thiazolidinones, Thiazolo[2,3-c]triazol-3-ones, Ring Cleavege, Diazomethane  
  Reference    (Z. Naturforsch. 31b, 380—384 [1976]; received August 15 1975) 
  Published    1976 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0380.pdf 
 Identifier    ZNB-1976-31b-0380 
 Volume    31 
85Author    H. Jacobs, E.Von OstenRequires cookie*
 Title    The Crystal Structure of a New Modification of Potassium Amide, KNH2  
 Abstract    In the temperature range from 54 to 75 °C a new modification of KNH2 was found, which crystallizes tetragonally a — 4.282 ±0.003 A, c = 6.182 ±0.003 A, and c/o= 1.444 (60 °C), in P 4/nmm -No. 129-, Z = 2, 2 K in 2c 0 1/2 z, z = 0.202(5), 2 N in 2c 0 1/2 z, z = 0.737(15). Its structure is of a deformed sodium chloride type. 
  Reference    (Z. Naturforsch. 31b, 385—386 [1976]; eingegangen am 24. November 1975) 
  Published    1976 
  Keywords    Potassium-Compound, Crystal Structures, Amides 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0385_n.pdf 
 Identifier    ZNB-1976-31b-0385_n 
 Volume    31 
86Author    Walter Strohmeier, Luise WeigeltRequires cookie*
 Title    Homogeneous Catalytic Hydrogenation of Unsaturated Compounds with H2PtCl6 + SnCl2 * 2 H20 in iso-Propanol  
 Abstract    A catalytical system for homogeneous hy-drogenation of unsaturated compounds, oper-ating under mild conditions can be prepared with H2PtCl6-SnCl2 • 2 H20 and the additives HBr and H20 in m>-propanol. Reaction rates up to 32 mMol • 1 _1 • min -1 were observed. After hydrogenation of one batch new sub-strate can be injected several times without noticeable desactivation of the system. Hy-drogenation rate of 2-tr-cis-hexene is only 0,5 times less than of 1-hexene. Mesityloxide is selectively hydrogenated regarding the double bond. 
  Reference    (Z. Naturforsch. 31b, 387—389 [1976]; eingegangen am 17. Oktober 1975) 
  Published    1976 
  Keywords    Catalysis, Hydrogenation, Unsaturated Compounds 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0387_n.pdf 
 Identifier    ZNB-1976-31b-0387_n 
 Volume    31 
87Author    Walter Strohmeier, Magdalena PföhlerRequires cookie*
 Title    Homogeneous and Heterogeneous Catalytic Hydrogenation of Unsaturated Compounds with H2PtCl6 + SnCl2 * 2 H20 in Acetic Acid  
 Abstract    The hydrogenation catalyst, prepared by dissolving H2PtCl6 + SnCl2 • 2 H20 in acetic acid operates as a homogeneous or heteroge-neous catalyst, depending on the ratio v = Sn/Pt. Styrene is hydrogenated by the homo-geneous and heterogeneous system but cyclo-hexene only by the heterogeneous system. 
  Reference    (Z. Naturforsch. 31b, 390—392 [1976]; eingegangen am 17. Oktober/24. November 1975) 
  Published    1976 
  Keywords    Catalysis, Hydrogenation, Unsaturated Compounds 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0390_n.pdf 
 Identifier    ZNB-1976-31b-0390_n 
 Volume    31 
88Author    W. J. Stec, R. Kinas, A. OkruszekRequires cookie*
 Title    Configurational Assignments to 2-X-2-Y-4-methyl-l,3,2-dioxaphosphorinans  
  Reference    (Z. Naturforsch. 31b, 393—395 [1976]; received July 17 1975) 
  Published    1976 
  Keywords    Dioxaphosphorinans, Configuration, Conformation 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0393_n.pdf 
 Identifier    ZNB-1976-31b-0393_n 
 Volume    31 
89Author    W. G. Filby, W. H. KalusRequires cookie*
 Title    in Tetranitromethane. Evidence for a Free Radical Nitration Process  
 Abstract    Electron Radioly sis, Tetranitromethane, Isolation, Diphenylpicrylhydrazyl 
  Reference    (Z. Naturforsch. 31b, 396—397 [1976]; received September 26 1975) 
  Published    1976 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0396_n.pdf 
 Identifier    ZNB-1976-31b-0396_n 
 Volume    31 
90Author    Werner LangeRequires cookie*
 Title    The Synthesis of Naphthacenequinones from Diels- Alder Adducts of p-Benzoquinone  
 Abstract    Naphthacenequinones, Diels-Alder Adducts, p-Benzoquinone Various naphthacenequinones can be syn-thesised by hydrogenation of the Diels-Alder-adducts of p-benzoquinone with Zn/acetic acid followed by a condensation of the formed diketones with o-phthalaldehyde. 
  Reference    (Z. Naturforsch. 31b, 398—399 [1976]; eingegangen am 4. August 1975) 
  Published    1976 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0398_n.pdf 
 Identifier    ZNB-1976-31b-0398_n 
 Volume    31 
91Author    K. S. Suresh, R. K. MalkaniRequires cookie*
 Title    co, a/-Bis ( diguanido -oxy ) Alkanes  
 Abstract    Synthesis, Bis(diguanido-oxy) Alkanes, Amino-oxy Alkanes Synthesis of a few bis(diguanido-oxy)-alkanes which are likely to possess good bacteriostatic properties have been reported. 
  Reference    (Z. Naturforsch. 31b, 400 [1976]; received Oktober 29 1975) 
  Published    1976 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0400_n.pdf 
 Identifier    ZNB-1976-31b-0400_n 
 Volume    31 
92Author    H. PritzkowRequires cookie*
 Title    Die Kristallstruktur zweier Modifikationen des Bis(1.2-benzochinondioximato)-platinjodids The Crystal Structure of Two Modifications of Bis( 1,2-benzoquinonedioximato)-platinum Iodide  
 Abstract    Bis(l,2-benzoquinonedioximato)-platinum Iodide, Crystal Structure Bis(l,2-benzoquinonedioximato)-platinum iodide crystallizes in two modifications. Both consist of centrosymmetric Pt(BCD)2l2 molecules, which are held together by inter-molecular hydrogen bonds. 
  Reference    (Z. Naturforsch. 31b, 401—404 [1976]; eingegangen am 5. Dezember 1975) 
  Published    1976 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0401.pdf 
 Identifier    ZNB-1976-31b-0401 
 Volume    31 
93Author    Bernd Grande, Hanskarl Müller-BuschbaumRequires cookie*
 Title    Über Oxocuprate, XIV Zur Kristallchemie von Sr2Cu304Cl2 On Oxocuprate, XIV On the Crystal Chemistry of Sr2Cu304Cl2  
 Abstract    The new compound Sr2Cu304Cl2 was prepared in melts of SrCl2. A single crystal X-ray examination (a = 546.2, c= 1259.1 pm, space group D^-14/mmm) shows that the octahedral distortion of the [Cu304Cl2] 4 ~-network cannot be explained only by the JAHN-TELLER effect. 
  Reference    (Z. Naturforsch. 31b, 405—407 [1976]; eingegangen am 24. November 1975) 
  Published    1976 
  Keywords    Strontium, Copper, Oxide Chloride, Crystal Structure, Coordination 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0405.pdf 
 Identifier    ZNB-1976-31b-0405 
 Volume    31 
94Author    Claus HadenfeldtRequires cookie*
 Title    Darstellung und Eigenschaften von Ca2AsBr, Sr2AsCl und Ca3AsBr3 Preparation and Properties of Ca2AsBr, Sr2AsCl, and Ca3AsBr3  
 Abstract    Dark-brown Ca2AsBr and yellow-green Ca3AsBr3 were prepared by reaction of Ca, As, and CaBr2 at 900-1000 °C and 760-800 °C resp., dark-violet Sr2AsCl from Sr, As, and SrCl2 at 900-1000 °C. Ca2AsBr possesses an extended homogeneity range (Ca2AsBr to Ca2.5AsBr2), Sr2AsCl only a narrow one; Ca3AsBr3 is a stoichiometric compound. In contrary to Ca2AsBr Ca3AsBr3 is not stable at 1000 °C. Analytical results, densities, and lattice constants of the phases are given. 
  Reference    (Z. Naturforsch. 31b, 408—410 [1976]; eingegangen am 13. Oktober/1. Dezember 1975) 
  Published    1976 
  Keywords    Calcium Phosphide Bromides, Strontium Arsenide Chloride, Preparation, Properties 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0408.pdf 
 Identifier    ZNB-1976-31b-0408 
 Volume    31 
95Author    HansHermann Eysel, Dietrich NötheRequires cookie*
 Title    Schwefelradikale S3 in Natriumtetrasulfid bei erhöhter Temperatur Sulfur Radical Ions S3 — in Sodiumtetrasulfide at Elevated Temperatures  
 Abstract    Sodium tetrasulfide, Sulfur Radicals, Raman, EPR, Visible Spectrum Raman EPR and visible absorption spectra of sodium tetrasulfide in the solid state and melts have been studied from room temperature up to 300 °C. The above techniques provide strong evidence for breaking of the polysulfide chains resulting in the production of S3"" radical ions. The existence of the radical ions in polysulfides at elevated temperatures is important for understanding the electrode processes in sodium sulfur batteries. 
  Reference    (Z. Naturforsch. 31b, 411—414 [1976]; eingegangen am 5. Dezember 1975) 
  Published    1976 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0411.pdf 
 Identifier    ZNB-1976-31b-0411 
 Volume    31 
96Author    HansHermann Eysel, Gertraud Wieghardt, H. Kleinschmager, G. WeddigenRequires cookie*
 Title    Raman-und IR-Spektren von festen Alkali-Polysulfiden Raman and IR Spectra of Solid A lkalimetalpoly sulfides  
 Abstract    Polysulfides, Raman, IR The Raman, IR and FIR spectra of polycrystalline samples of the polysulfides Na2S4, K2S5, Na2Ss have been measured. A unique assignment of the internal vibrations of the tetrasulfide ion could be achieved. 
  Reference    (Z. Naturforsch. 31b, 415—418 [1976]; eingegangen am 5. Dezember 1975) 
  Published    1976 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0415.pdf 
 Identifier    ZNB-1976-31b-0415 
 Volume    31 
97Author    Ekkehard Fluck, Markus Lang, Franziskus Horn, Erich Hädicke, GeorgeMichael SheldrickRequires cookie*
 Title    Kalium-cioso-tetradekanitrogen-dodekathio-dodekaphosphat(6-), K6[Pl2Si2N14] Potassium closo Tetradecanitrogen Dodecathio Dodecaphosphate(ö-), K6[P12S12N14] Ammoniumlaboratorium der BASF AG, Ludwigshafen (Rhein) und  
 Abstract    Nitrogenphosphate Preparation and properties of the title compound are described. The mechanism of formation is suggested in part. IR, Raman and NMR spectra are given and interpreted. The X-ray structural analysis is reported and structural features are discussed. Bildung von Ka[P12S12N14J 
  Reference    (Z. Naturforsch. 31b, 419—426 [1976]; eingegangen am 18. November 1975) 
  Published    1976 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0419.pdf 
 Identifier    ZNB-1976-31b-0419 
 Volume    31 
98Author    Hans-Werner Frühauf, ErnstA. Koerner, Von GustorfRequires cookie*
 Title    Elektronenübertragungsreaktionen, I Produktanalysen der Einelektronen-Oxidation von Olefinen mit Ferriin oder Bleidioxid in wäßriger und methanolischer Lösung Electron Transfer Reactions, I Product Analyses of One-Electron Oxidations of Olefins by Ferriin or Lead Dioxide in Aqueous and Methanolic Solutions  
 Abstract    The oxidation of the substituted ethylenes, 2,3-dimethylbutene-2 (1), 2-methylbutene-2 (8), and a-methylstyrene (13), by ferriin or lead dioxide in water and/or methanol has been studied. Product analyses of the reactions, which lead to kinetically controlled product distributions, showed that lead dioxide, just as ferriin, reacts as a one-electron-oxidant. The product distributions, which arise from further reactions of the primary intermediates. i.e. the radical cations formed via one-electron transfer, were found to depend on sub-stituents, acidity and solvent. The results are consistent with three separate reaction paths of the radical cation, each of which leads to specific products. The radical cation can either deprotonate, be nucleophilicly attacked by solvent, or lead to dimeric products. The first two possibilities only are observed in the oxidation of 1 and 8, while only the latter two are found in the oxidation of 13. 
  Reference    (Z. Naturforsch. 31b, 427—436 [1976]; eingegangen am 28. November 1975) 
  Published    1976 
  Keywords    One Electron Transfer, Ferriin, Lead Dioxide, Olefin Radical Cations, Product Analyses 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0427.pdf 
 Identifier    ZNB-1976-31b-0427 
 Volume    31 
99Author    Wilhelm Kuchen, Helmut KeckRequires cookie*
 Title    Zur Kenntnis der Organophosphorverbindungen, XVI 1 Vinyl-aryldithiophosphinsäuren und einige ihrer Derivate 2 On Organophosphorus Compounds, XVI 1 Vinyl-aryldithiophosphinic Acids and Some of their Derivatives 2  
 Abstract    Herrn Professor DR. L. BIRKOFER zum 65. Geburtstag gewidmet Vinylaryldithiophosphinic Acids, /5-Mercaptoethyl-p-methoxyphenylthiophosphinic Acid Vinylaryldithiophosphinic acids RR'P(S)SH (R = vinyl; R' = p-methoxyphenyl, p-ethoxyphenyl) were obtained as NH^-salts from the reaction of aryldithiophosphonic anhydrids with CH2=CHMgBr. Alkali hydrolysis of the methylester RR'P(S)SCH3 (R' = p-methoxyphenyl) gave ^-methylmercaptoethyl-p-methoxyphenylthiophosphinic acid. 
  Reference    (Z. Naturforsch. 31b, 437—441 [1976]; eingegangen am 12. November/22. Dezember 1975) 
  Published    1976 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0437.pdf 
 Identifier    ZNB-1976-31b-0437 
 Volume    31 
100Author    Polyfunktioneller Dithiophosphinsäuren, Wilhelm Kuchen, Helmut Keck, Sonderdruckanforderungen An, ProfW. Dr, KuchenRequires cookie*
 Title    Metallkomplexe der Phosphinsäuren, XI 1 Metallvinylaryldithiophosphinate und polymere Komplexe Metal Complexes of Phosphinic Acids, XI 1 Metal Vinylaryldithiophosphinates and Polymer Complexes of Polyfunctional Dithiophosphinic Acids  
 Abstract    Preparation and properties of several metal vinylaryldithiophosphinates (CH2 = CH)RPS2M/n (R: p-methoxyphenyl; p-ethoxyphenyl) are reported. Copolymerisation of the ammonium salt (CH2 = CH)RP(S)SNH4 (R = p-ethoxyphenyl) with methacrylic methylester gave polymers (M~ 10,000) which acted as polyfunctional ligands thus giving soluble polymeric metal complexes (M~ 17,000) with Ni(II) and Co(II). Vor einiger Zeit beschrieben wir koordinations-polymere Dithiophosphinatokomplexe 1 , die durch Umsetzung einer bifunktionellen Dithiophosphin-säure mit Metallionen erhalten und zur Trennung von Lewis-Basen in der "Chemisorptionschromato-graphie" verwendet worden waren 3-6 . Polymere Metallkomplexe, den Chromophor MS4 (M = Co(II), Ni(II)) enthaltend, versuchten wir nunmehr für diesen Zweck auch durch Copolymeri-sation von Ammoniumvinylaryldithiophosphinaten [Vinyl(R)PS2]NHi mit einem dazu geeigneten Monomeren zu erhalten. Hierbei sollte zunächst ein poly merer Ligand mit zahlreichen zur Komplexbil-dung befähigten Dithiophosphinatogruppen > PS2 e resultieren, der bei der anschließenden Umsetzung mit Metallionen die gesuchten Komplexe ergab. Über diesbezügliche Versuche, sowie über eine Reihe von Komplexen Vinyl(R)PS2M/n, deren Poly-merisation bzw. Copolymerisation unter den glei-chen Aspekten von uns demnächst versucht werden soll, wird im folgenden berichtet. 
  Reference    (Z. Naturforsch. 31b, 442—447 [1976]; eingegangen am 12. November/22. Dezember 1975) 
  Published    1976 
  Keywords    Metal Vinylaryldithiophosphinates, Polymers, Metal Complex Polymers 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0442.pdf 
 Identifier    ZNB-1976-31b-0442 
 Volume    31 
Prev
1
2
3
4
5
...
Next