Go toArchive
Browse byFacets
Bookbag ( 0 )
Facet   section ZfN Section B:Volume 041  [X]
Results  263 Items
Sorted by   
Publication Year
1986 (263)
121Author    D.Requires cookie*
 Title    c h 3W -h^ h9 c  
 Abstract    ie A zom ethine D mit dem Fluoren-System ha­ ben keine flüssig-kristallinen Eigenschaften, wäh­ rend das entsprechende Vinylen E eine sm ektische Phase bildet (s. Tab. I). Q ^ > n=chJ [ > R D r= h , ch3, C5^ i <^^-^^K C H =C H -tyL c;H 9 E D ie substituierten 4,4'-Bis(2-thienylm ethyliden-am ino)biphenyle F besitzen wie die 4,4'-Bis(5-alkyl-R -J[^jL cH = N ^^^H ^^N = C H JyL R F r =och3, oc2h5 , ci/ no2 752 G. K o ß m e h l-D . Budwill ■ Flüssig-kristalline V erbindungen aus d e r T h io p h e n re ih e 
  Reference    Z. Naturforsch. 41b, 751 (1986) 
  Published    1986 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0751.pdf 
 Identifier    ZNB-1986-41b-0751 
 Volume    41 
122Author    Werner Massa, Thomas Kämpchen, Johann Müller, U. Lf PindurRequires cookie*
 Title    Zur Struktur von Tris(l,3-dimethyl-2-indolyl)-methan: Ein chiraler C3-Propeller aus der Trishetarylmethan-Reihe The Structure of Tris(l,3-dim ethyl-2-indolyl)m ethane: a Chiral Q -Propeller in the Trishetarylmethane Series  
 Abstract    'H NM R Spectra, Crystal Structure, Tris(l,3-dim ethyl-2-indolyl)m ethane The structure of tris(l,3-dim ethyl-2-indolyl)m ethane (1) as a model compound for C3-skele-ton symmetric trishetaryl-m ethanes is elucidated by X-ray diffraction and tem perature dependant 'H NMR spectroscopy. The results dem onstrate, that 1 adopts a chiral C 3-propeller conform ation (P/M-helix) as well in crystal as in solution. 
  Reference    Z. Naturforsch. 41b, 762—767 (1986); eingegangen am 24. Januar 1986 
  Published    1986 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0762.pdf 
 Identifier    ZNB-1986-41b-0762 
 Volume    41 
123Author    R. Osa, E. Rra Balsells, C. Arlos, O. Rtal, A. Dolfo, R. FrascaRequires cookie*
 Title    A New Dimerization Reaction in Polyphosphoric AcitP  
  Reference    Z. Naturforsch. 41b, 768—771 (1986); received D ecem ber 16 1985 
  Published    1986 
  Keywords    Indole Com pounds, D im erization, Polyphosphoric Acid 2-Phenyl-3-methyl-7-nitroindole 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0768.pdf 
 Identifier    ZNB-1986-41b-0768 
 Volume    41 
124Author    W. Olfgang, Rühla Friedrich Bölsing3, EdgarH. Ofera, Dietrich Speerb, Martin JansenbRequires cookie*
 Title    Das Ketocarben-Oxiren-GIeichgewicht unter einem präparativen Aspekt^ The Oxiren-Oxo Carbene Interconversion from a More Preparative Point of View  
 Abstract    Wolff R earrangem ent, O xirenes, Oxo C arbenes, A zulenes The photochemical decomposition of a-diazoketone 1 in toluene gives rise to the form ation of the well known keto carbene-oxirene equilibrium from which not only the product of the Wolff rearrangem ent can be derived but also the com pounds 5, 6 and 7 which are form ed directly via the corresponding keto carbenes A and B respectively. Form ation of the azulene 6 is unexpected in this context, it's structure could be revealed by X-ray analysis. The results may be regarded as an additional contribution to the mechanism of the W olff rearrangem ent, but what is m ore, they could serve as a model for the feasibility of mechanistic oxirene chemistry in a more preparative aspect. 
  Reference    Z. Naturforsch. 41b, 772 (1986); eingegangen am 3. D ezem ber 1985 
  Published    1986 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0772.pdf 
 Identifier    ZNB-1986-41b-0772 
 Volume    41 
125Author    E. N. Esr, HartmutB. Stegmann, Klaus Stolze, Klaus SchefflerRequires cookie*
 Title    ESR-und ENDOR-Untersuchungen der Autoxidationsprodukte des Adrenalons und analoger Verbindungen Investigations of the A utoxidation Products of Adrenalone and Related Compounds  
 Abstract    The signs of the proton coupling constants of adrenalone sem iquinone and related compounds were determ ined by E N D O R and T R IP L E resonance studies, thereby verifying the increment system described in our previous paper [2], Com parison of the spin-distribution of several substi­ tuted acylcatechols showed the conform ational influence on the coupling constants due to mesomeric interaction of the carbonyl group with the arom atic 7r-system. A drenalone and other N -m onosubstituted catecholam ines showed rather stable secondary radi­ cals after the decay of the prim ary sem iquinone radical. They were identified as substituted dihydropyrazinium cation radicals after selective deuteration and comparison of their ESR-, EN D O R -and TRIPLE -resonance spectra with those of the non-deuterated species. They are formed by cyclic condensation of two molecules with subsequent oxidation. E in fü h ru n g 
  Reference    Z. Naturforsch. 41b, 776 (1986); eingegangen am 24. Januar 1986 
  Published    1986 
  Keywords    A drenalone, Semiquinones, ESR Spectra, E N D O R Spectra 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0776.pdf 
 Identifier    ZNB-1986-41b-0776 
 Volume    41 
126Author    Requires cookie*
 Title    Nitriles in Heterocyclic Synthesis: Novel Synthesis of 4H-Thiopyran and of 2-Hydroxy-6-pyridine Thione Derivatives  
  Reference    Z. Naturforsch. 41b, 781 (1986) 
  Published    1986 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0781.pdf 
 Identifier    ZNB-1986-41b-0781 
 Volume    41 
127Author    H. W. Jochim, E. Rühl, H. BaumgärtelRequires cookie*
 Title      
 Abstract    Photoionization Mass Spectrum . Sulfur D ibrom ide The photoionization mass spectrum of SBr2 has been m easured and the (S —B r)-bond energy has been calculated from experim ental data. 
  Reference    Z. Naturforsch. 41b, 784 (1986); eingegangen am 26. F ebruar 1986 
  Published    1986 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0784_n.pdf 
 Identifier    ZNB-1986-41b-0784_n 
 Volume    41 
128Author    Nikolaus RischRequires cookie*
 Title    Dreifache Mannich-Cyclisierung Aufbau von drei benachbarten quartären sp3-Koh)enstoffzentren in einem Reaktionsschritt Threefold Mannich Reaction Formation of Three N eighboring Quarternary sp3-Carbon Centers in a Single Reaction Step  
 Abstract    Threefold M annich R eaction, 1-A zaadam antanes, Form ation of Neighboring Q uarternary sp3-Carbon C enters 
  Reference    Z. Naturforsch. 41b, 787—788 (1986); eingegangen am 13. Januar 1986 
  Published    1986 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0787_n.pdf 
 Identifier    ZNB-1986-41b-0787_n 
 Volume    41 
129Author    Requires cookie*
 Title      
 Abstract    i h (C0)3Fe^ / \ / '" P " ' R 2 -F e (C 0)3 :Fe(C0)2 -Fe(C0)n (C0)3Fe = CO R' >— -0 = \ / Fe(C 0)3 I :Fe(C0), * Sonderdruckanforderungen an Prof. D r. H. V ahrenkam p. V erlag d e r Z eitsch rift für N a tu rfo rsch u n g , D -7400 T übingen 0 3 4 0 -5 0 8 7 /8 6 /0 6 0 0 -0 7 8 9 /$ 01.00/0 
  Reference    Z. Naturforsch. 41b, 789 (1986) 
  Published    1986 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0789_n.pdf 
 Identifier    ZNB-1986-41b-0789_n 
 Volume    41 
130Author    AndrzejE. WróRequires cookie*
 Title    A nalogues o f Methyl Y)-Ribo-and D-Arafo/io-furanosides Having Phosphorus in the Anomeric Position+  
 Abstract    Acid-catalysed cyclisation of (1SJ-and (1R)-1-C-(dimethoxyphosphinyl)-D-erythritols gave exclu­ sively P-epimeric analogues of methyl D -ribo-and D-arabino-furanosides with phosphorus in the anom eric position. 
  Reference    Z. Naturforsch. 41b, 791 (1986); received Decem ber 12 1985 
  Published    1986 
  Keywords    Polihydroxy-l, 2-oxaphospholanes, Cyclisation, Regioselectivity, Configuration, ljC N M R Spectra 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0791_n.pdf 
 Identifier    ZNB-1986-41b-0791_n 
 Volume    41 
131Author    Josef Schmitte, Kurt DehnickeRequires cookie*
 Title    Zweikernige /i-Nitridokom plexe von Molybdän Binuclear //-Nitrido C om plexes o f Molybdenum  
 Abstract    «-Nitrido Complexes of M olybdenum , Synthesis, IR Spectra The ,M-nitrido complexes [Mo2NCly]20 and [Mo2NCl9]e , with PPh,Me® as the counter ions, are prepared by reactions of [MoNC14]20 and [MoNCl4]e , respectively, with molybdenum penta-chloride in C H 2C12. With PO Cl3 [Mo2NC19]20 forms the donor-acceptor complex [Mo2NC19(POC13)]20, whereas with acetonitrile disproportionation occurs, [MoNCU]0 and [MoCl5(C H 3C N)]e being form ed, respectively. The IR spectra are discussed. 
  Reference    Z. Naturforsch. 41b, 793 (1986); eingegangen am 28. F ebruar 1986 
  Published    1986 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0793_n.pdf 
 Identifier    ZNB-1986-41b-0793_n 
 Volume    41 
132Author    HeribertW. Adle, Elke Conradi, Ulrich Müller, Kurt DehnickeRequires cookie*
 Title    Synthese und Kristallstruktur von [W Cl3(N 3S2)(Pyridin)] Synthesis and Crystal Structure of [WCl3(N 3S2)(Pyridine)]  
 Abstract    1,1.1 -T richloro-1 -pyridine-cyclo-1 Ä6-tungsta-3.5-dithia-2,4, 
  Reference    Z. Naturforsch. 41b, 796—798 (1986); eingegangen am 14. Februar 1986 
  Published    1986 
  Keywords    6-triazine, Synthesis, IR Spectra, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0796_n.pdf 
 Identifier    ZNB-1986-41b-0796_n 
 Volume    41 
133Author    CarlH. Abben, A. Nton Meller, M. Atthias, N. Oltem Eyer, GeorgeM. SheldrickRequires cookie*
 Title    Synthese, Molekül-und Kristallstruktur von 3,5-Dimethyl-2,6-bistrimethylsilyl- l-thia-2,4,6-triaza-3,5-diborinan-wolframpentacarbonyl Synthesis, M olecular and Crystal Structure of 3,5-Dimethyl-2,6-bistrimethylsilyl- l-thia-2,4,6-triaza-3,5-diborinane-tungstenpentacarbonyl  
 Abstract    The am m onolysis o f 3,5-dim ethyl-2,6-bistrim ethylsilyl-l,4-dithia-2,6-diaza-3,5-diborinane leads to 3,5-dim ethyl-2,6-bistrim ethylsilyl-l-thia-2,4,6-triaza-3,5-diborinane, which reacts with tungstenpentacarbonyl • TH F to give the title-com pound. 'H , " B , 13C, 14N , 29Si N M R spectra, IR and MS data, and the results o f an X-ray analysis are reported. 
  Reference    Z. Naturforsch. 41b, 799—802 (1986); eingegangen am 19. Februar 1986 
  Published    1986 
  Keywords    l-Thia-2, 4, 6-triaza-3, 5-diborinanes, Tungstenhexacarbonyl, Synthesis, M olecular Structure, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0799.pdf 
 Identifier    ZNB-1986-41b-0799 
 Volume    41 
134Author    Roesky, M. Athias, Noltem Eyer, GeorgeM. SheldrickRequires cookie*
 Title    Darstellung und Kristallstrukturen von [Ph4A s+][PS2(N3)2 ] und [(n-C3H7)4N+]2[(NCPS2)2S2-]  
 Abstract    Preparation and Crystal Structures of [Ph4A s+][PS2(N3)2_] and [(tt-C3H 7)4N +]2[(NCPS2)2S2_] H erbert W. A zide, N itrile, T hiophosphate, Crystal Structure The diazidodithiophosphate anion [PS2(N 3)2_] can be isolated with a large cation as (Ph4A s +][PS2(N 3)2_] (1). [PS2(N 3)2~] is formed by the reaction of P4S 10 with N aN 3 in acetonitrile as a solvent. [(NC PS2)2S2_] results from the reaction of P4S 10 with NaC N in acetonitrile and is isolated as [(rt-C3H 7)4N +H (N C P S 2)->S2-] (2). 1 crystallizes in the triclinic space group P 1 with a — 1329.3(3), b = 1419.1(3),'c = 2182.3(5) pm , a -71.71(2), ß = 87.21(2), y = 84.97(2)° and Z = 6. Crystals o f 2 are m onoclinic, space group P 2 x!n, a — 1899.0(3), b — 949.0(2), c = 2128.4(5) pm , ß = 112.90(2)°, Z = 4. 
  Reference    Z. Naturforsch. 41b, 803 (1986); eingegangen am 10. März 1986 
  Published    1986 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0803.pdf 
 Identifier    ZNB-1986-41b-0803 
 Volume    41 
135Author    R.Ainer Mattes, AngelaD. OrauRequires cookie*
 Title    Kurze inter-und intramolekulare W asserstoffbrückenbindungen in sauren Salzen halogensubstituierter Orthophthalsäuren Short Inter-and Intram olecular Hydrogen Bonds in Acid Salts of Halogen-Substituted o-Phthalic Acids  
 Abstract    The hydrogen bonding in several acid salts o f 4,5-dichlorophthalic, 3,6-dichlorophthalic and 3-fluorophthalic acid have been studied by IR spectroscopy and X-ray structure analysis. N H 4H [3,6-C12C8H 204] and KH[3-FCgH 30 4], with 0 ---0 distances o f 247 and 254.1(4) pm, respectively, belong to Speakm an's type B2 of acid salts o f dicarboxylic acids. In N H 4H[4,5-C12C8H 20 4] • H 20 a short hydrogen bond o f 253(1) pm is form ed to the H 20 m olecule. A very short intramolecular hydrogen bond o f only 234.0(10) pm length was found in N (C 4H 9)4H[4,5-C12C8H 20 4], In the [3,6-Cl2C8H 20 4]2_ dianion both carboxylate groups are nearly orthogonal to the phenyl ring. 
  Reference    Z. Naturforsch. 41b, 808 (1986); eingegangen am 17. März 1986 
  Published    1986 
  Keywords    Short Hydrogen Bonds, Acid Salts of o-Phthalic Acids, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0808.pdf 
 Identifier    ZNB-1986-41b-0808 
 Volume    41 
136Author    F. Seel, K.-P Klos, D. Recktenwald, J. SchuhRequires cookie*
 Title    Zur Frage der nicht-enzymatischen Bildung von kondensierten Phosphaten unter präbiotischen Bedingungen Non-Enzymatic Form ation of Condensed Phosphates under Prebiotic Conditions  
 Abstract    Condensed Phosphates, Magnesium D iphosphate, Chem ical Evolution O ne of the problem s o f chemical evolution on the primitive Earth is the question of the possibility of a non-enzym atic spontaneous condensation o f phosphoric acid and hydrogen phos­ phates to yield polyphosphoric acids and polyphosphates in aqueous system s, by means o f which phosphorus might have entered into early m etabolism s. The extra-or intra-cellular formation of magnesium diphosphate under geologically plausible hydrothermal conditions from either mag­ nesium hydrogen phosphates or calcium phosphates in media has been dem onstrated. 
  Reference    Z. Naturforsch. 41b, 815 (1986); eingegangen am 11. April 1986 
  Published    1986 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0815.pdf 
 Identifier    ZNB-1986-41b-0815 
 Volume    41 
137Author    Hans-Günter Hauck, W. Olfgang, Willing, Ulrich Müller, Kurt DehnickeRequires cookie*
 Title    Brom-und Chlorthionitrenkomplexe des Rheniums Die Kristallstruktur von (PPh4)2[ReBr4(N S)(N SBr)] *CH2Br2 Bromo-and Chlorothionitrene Complexes of Rhenium The Crystal Structure of (PPh4)2[ReBr4(NS)(NSBr)] ■ C H 2B r2  
 Abstract    The thionitrosyl-halothionitrene com pounds (PPh4)2[R eX 4(N S)(N S X)]-2 C H 2X 2, X = Cl or Br, are obtained by nucleophilic ring cleavage o f the R e(N 2S2) rings o f com plexes [R eX 4(N 2S2)]e with PPh4X in C H 2X 2. (A sP h4)2[R eC l4(N S)(N SC l)] • C H 2C12 can also be obtained by the reaction 
  Reference    Z. Naturforsch. 41b, 825 (1986); eingegangen am 7. März 1986 
  Published    1986 
  Keywords    Bromo- and Chlorothionitrene Complexes of Rhenium, Synthesis, IR Spectra, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0825.pdf 
 Identifier    ZNB-1986-41b-0825 
 Volume    41 
138Author    Wolfgang Willing, Ruth Christophersen, Ulrich Müller, K. Urt DehnickeRequires cookie*
 Title    Synthese und Kristallstruktur von VBr2(N3S2)(Pyridin) 2 Synthesis and Crystal Structure of VBr2(N3S2)(pyridine)2  
 Abstract    VBr2(N 3S2)(pyridine)2 is obtained in form o f brown-black, moisture sensitive crystals by the 
  Reference    Z. Naturforsch. 41b, 831 (1986); eingegangen am 22. April 1986 
  Published    1986 
  Keywords    Cyclo-thiazeno Vanadium Dibrom ide D ipyridine, Synthesis, IR Spectra, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0831.pdf 
 Identifier    ZNB-1986-41b-0831 
 Volume    41 
139Author    Requires cookie*
 Title    Bis[tetraethylammonium]-/wes0 -bis[dichloro«jti-chloro-oxo-aquavanadat(IV)], [(C2H5)4N ]2[ { VOCl2(O H 2) }2(jj-C1)2] : Molekülstruktur und spektroskopische Charakteristika  
  Reference    Z. Naturforsch. 41b, 834 (1986) 
  Published    1986 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0834.pdf 
 Identifier    ZNB-1986-41b-0834 
 Volume    41 
140Author    H.-DH. Ausen, G. R. Ajca, J. WeidleinRequires cookie*
 Title     
 Abstract    Crystal Structure, X -R ay, 1.1.3.5.5.7.9.9.11-N on ach loro-l,5,9-triph osph a-2,4,6,8,10,12-h exaazacyclododecahexaen e The title com pound, C12PN 2CC1, has been synthesized by the reaction o f PC15 with M e3Si —N = C = N -S i M e 3 (M e — C H 3) in a 1:1 molar ratio. The colourless com pound is trim ericin benzene solution and in the solid state and has a structure with a highly puckered 12-membered P3N 6C3-ring skeleton o f low symmetry. The X-ray structure determ ination show s a m onoclinic space group P 2 x!a with 4 trimeric units per cell. 
  Reference    Z. Naturforsch. 41b, 839 (1986); eingegangen am 3. März 1986 
  Published    1986 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0839.pdf 
 Identifier    ZNB-1986-41b-0839 
 Volume    41 
Prev
...
6
7
8
9
10
...
Next