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'NMR Spectra' in keywords Facet   Publication Year 1985  [X]
Facet   section ZfN Section B  [X]
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1985[X]
1Author    Joseph Grobe, Due Le VanRequires cookie*
 Title    Reactive E=C (p-p)jr-Systems III [1]: Diels Alder Reactions with F 3 CP=CF 2 as Dienophile  
 Abstract    The perfluorophosphaalkene F 3 CP=CF 2 (1) reacts as a dienophile at temperatures between —20 and +15 °C with cyclopentadiene, 1,3-cyclohexadiene, butadiene and 2,3-dimethyl-butadiene, respectively, giving the corresponding Diels-Alder adducts 2 to 5 in high yields. The observed reactivity proves the close relationship of P=C and C=C systems. CF2 >F^ CF 2 
  Reference    Z. Naturforsch. 40b, 467—469 (1985); eingegangen am 27. November 1984 
  Published    1985 
  Keywords    Perfluorophosphaalkene, Diels-Alder Reactions, Mass Spectra, NMR Spectra 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0467.pdf 
 Identifier    ZNB-1985-40b-0467 
 Volume    40 
2Author    Ekkehard Lindner, Fritz Zinßer, HermannAugust Mayer, Wolfgang Hiller, Riad FawziRequires cookie*
 Title    Darstellung und Eigenschaften von und Reaktionen mit metallhaltigen Heterocyclen, XLVII [1] Einschiebungsreaktionen von phasentransferkatalytisch in situ erzeugten Dihalocarbenen in P-haltige Manganacycloalkane — Struktur und chemisches Verhalten der Reaktionsprodukte Preparation and Properties of and Reactions with Metal-Containing Heterocycles, XLVII [1] Insertion Reactions of Phase-Transfer-Catalytically in situ Generated Dihalocarbenes into P-Containing Manganacycloalkanes — Structure and Chemical Behaviour of the Reaction Products  
 Abstract    The phase-transfer-catalytically in situ generated dihalocarbenes CC1 2 and CBr 2 are inserted into a ß-C—H bond of the five-and six-membered phosphamanganacycloalkanes (OC) 4 MnPPh 2 (CH 2)"CH 2 CH 2 (la, b) [n = 1(a), 2(b)] to give the functionalized metallacycles (OC) 4 MnPPh 2 (CH 2)"CH(CHX 2)CH 2 (2a, a', b, b') [X = Cl: n = l(a), 2(b); X = Br: n = l(a'), 2(b')]. 2b crystallizes in the orthorhombic space group Pbca with Z = 8 and has a distorted chair conformation with equatorial position of the CHC1 2 group. The envelope conformation of 2a in solution was elucidated by means of 'H and 13 C{'H} NMR spectroscopic investigations. 
  Reference    Z. Naturforsch. 40b, 615—623 (1985); eingegangen am 20. Dezember 1984 
  Published    1985 
  Keywords    Dihalocarbene Insertion, Manganacycloalkanes, X-Ray, NMR Spectra 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0615.pdf 
 Identifier    ZNB-1985-40b-0615 
 Volume    40 
3Author    Willy GomblerRequires cookie*
 Title    NMR-spektroskopische Untersuchungen an Chalkogenverbindungen, VI [1] S-Isotopeneffekte auf 19 F-NMR-Frequenzen und ihre Abhängigkeit von Bindungslängen NMR Spectroscopic Studies on Chalcogen Compounds, VI [1] l4 S Isotope Effects on 19 F NMR Frequencies and their Dependence on Bond Lengths  
 Abstract    Nineteen values for 34 S-induced isotope shifts on the NMR frequency of directly bonded fluorine of fourteen S(II), S(IV), and S(VI) compounds are reported. The dependence of these l A 19 F(34/32 S) values on the S —F bond length is demonstrated. Three reasons for this correlation are discussed. (1) A nonlinear dependence of nuclear shielding on bond distance. (2) Decreasing energy difference of two isotopomers with increasing bond distance. (3) Decreasing anharmonicity of the potential curve with increasing bond length. Some previously unknown S—F bond distances have been estimated by this correlation. The isotope shifts decrease with increasing temperature. This is attributed to vibrationally excited states in conjunction with a nonlinear dependence of nuclear shielding on bond distance. Furthermore, 34 S-induced isotope shifts on fluorine-19 over two bonds, 2 A 19 F(34/32 S), have been observed for the first time, and the 33 S-induced isotope effect in SF 6 has been measured. 
  Reference    Z. Naturforsch. 40b, 782—786 (1985); eingegangen am 6. Februar 1985 
  Published    1985 
  Keywords    NMR Spectra, S-F Bond Length, Sulfur Fluorine Compounds 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0782.pdf 
 Identifier    ZNB-1985-40b-0782 
 Volume    40 
4Author    KlausR. Pörschke, Richard Mynott, Klaus Angermund, ++, Carl KrügerRequires cookie*
 Title    Neue Bis(phosphan)-nickel(0)-alkin-Komplexe New Bis(phosphane)-nickel(0)-alkyne Complexes  
 Abstract    (Me 3 P)2Ni(C 2 H4) (5) and (dmpe) 2 Ni2(C 2 H4)3 (6) react with various alkynes including ethyne (acetylene) and 1-alkynes to form the crystalline compounds (Me 3 P) 2 Ni(C 2 RR'), (dmpe)Ni(C 2 RR'), and (dmpe)2Ni 2 (C 2 R2) 2 (R.R' = H, Me, Ph). Structural assignments were made on the basis of : H, I3 C, and 31 P NMR data. The crystal and molecular structure of (dmpe)Ni(C 2 Ph 2) (17) has been determined by X-ray crystallography. 
  Reference    Z. Naturforsch. 40b, 199—209 (1985); eingegangen am 15. Oktober 1984 
  Published    1985 
  Keywords    Alkynes, Nickel(O), Phosphanes, NMR Spectra, X-Ray 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0199.pdf 
 Identifier    ZNB-1985-40b-0199 
 Volume    40 
5Author    Markus Wieber, Dieter Wirth, Christian BurschkaRequires cookie*
 Title    Darstellung und Struktur einiger i/ 5 -Cyclopentadienyldicarbonyleisenbismut-Verbindungen Cp(CO) 2 FeBiX 2 mit fünffach koordiniertem Bismutatom Synthesis and Structure of Some ?7 5 -Cyclopentadienyldicarbonylironbismuth Compounds Cp(CO) 2 FeBiX 2 with Five-Coordinated Bismuth Atoms  
 Abstract    The synthesis and the spectroscopic properties of the title compounds Cp(CO) 2 FeBiX 2 (with X = SC(S)NEt 2 and SC(S)OMe) are described. The crystal structure of Cp(CO) 2 FeBi[SC(S)NEt 2 ] 2 was investigated by an X-ray analysis. 
  Reference    Z. Naturforsch. 40b, 258—262 (1985); eingegangen am 11. Oktober 1984 
  Published    1985 
  Keywords    Synthesis, Structure, // 5 -Cyclopentadienyldicarbonylironbismuth Compounds, NMR Spectra, IR Spectra 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0258.pdf 
 Identifier    ZNB-1985-40b-0258 
 Volume    40 
6Author    Atta-Ur -Rahman, Mehrun Nisa, Talat Zamir, H.E J, Wolfgang VoelterRequires cookie*
 Title    The Isolation and Structure of "Papilinine" a New Alkaloid from Buxus papilosa  
 Abstract    A new alkaloid "Papilinine" has been isolated from the leaves of Buxus papilosa to which structure 1 has been assigned. 
  Reference    Z. Naturforsch. 40b, 565—566 (1985); received June 28 1984 
  Published    1985 
  Keywords    Buxus papilosa, Steroidal Alkaloids, Structure Elucidation, NMR Spectra, Mass Spectra 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0565_n.pdf 
 Identifier    ZNB-1985-40b-0565_n 
 Volume    40 
7Author    GerhardG. Habermehl, PeterE. HammannRequires cookie*
 Title    Rearrangement of 14/3-Hydroxy-12ß-sulfoxy-steroids to 13,17-Seco-12,17-cyclo-steroids; a 2D-NMR Analysis  
 Abstract    The rearrangement of 3-oxo-14/3-hydroxy-12/3-methanesulfoxy-card-20(22)-enolide and 14/3-hydroxy-12/3-methanesulfoxy-pregnane-3,20-dione during elimination of the sulfoxygroups was studied. By means of 2D-NMR analysis the structures were determined as 13,17-seco-12,17-cyclo-steroids. 
  Reference    Z. Naturforsch. 40b, 656—660 (1985); received November 14 1984 
  Published    1985 
  Keywords    13, 17-Decyclo-12, 17-cyclosteroids, Steroid Rearrangement, NMR Spectra 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0656.pdf 
 Identifier    ZNB-1985-40b-0656 
 Volume    40 
8Author    Udo Kunze, Andreas BrunsRequires cookie*
 Title    Phosphinsubstituierte Chelatliganden, XII [1] Metallinduzierte E/Z-Isomerisierung an Rheniumcarbonyl-Komplexen mit Phosphinothioformamid-und -thioformimidat-Liganden Phosphine-Substituted Chelate Ligands, XII [1] Metal-Induced E/Z-Isomerisation of Rheniumcarbonyl Complexes with Phosphino- thioformamide and -thioformimidate Ligands  
 Abstract    The coordination of tertiary phosphinothioform-amides and the isomeric S-alkyl phosphinothioform-imidates to BrRe(CO) 5 gives the /ac-bromotricar-bonylrhenium complexes la, b and 2a, b with P,S-chelate ligands. Unlike the analogous manganese complexes, the NMR spectra of dissolved lb and 2a, b show a splitting of the N-alkyl ('H, 13 C) and phosphorus signals indicating E/Z isomerisation of the ligands. 
  Reference    (Z. Naturforsch. 40b, 127—128 [1985]; eingegangen am 7. August/5. September 1984) 
  Published    1985 
  Keywords    E/Z-Isomerisation, NMR Spectra, Rhenium Complexes, Tertiary Phosphinothioform-amides, S-Alkyl Phosphinothioformimidates 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0127_n.pdf 
 Identifier    ZNB-1985-40b-0127_n 
 Volume    40 
9Author    Dieter Hellwinkel, Peter Ittemann, Siegbert BohnetRequires cookie*
 Title    Dibenzo  
 Abstract    [b,g]heterocin-5,7-dione Dibenzo[b.g]heterocine-5,7-diones 
  Reference    Z. Naturforsch. 40b, 858—859 (1985); eingegangen am 13. Februar 1985 
  Published    1985 
  Keywords    Dibenzo[b, g]heterocine-5, 7-diones, Synthesis, NMR Spectra, Stereochemistry, Ring Inversion 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0858_n.pdf 
 Identifier    ZNB-1985-40b-0858_n 
 Volume    40 
10Author    W. Erner, M. Artin, E. Bner, W. Erner BertleffRequires cookie*
 Title    CS2, CSSe und CSe2 als Bausteine für ein-und zweikernige Palladium-und Platinkomplexe [1] CS2, CSSe and CSe2 as Building Blocks for Mono-and Binuclear Palladium and Platinum Complexes [1] H elm ut  
  Reference    Z. Naturforsch. 40b, 1351 (1985); eingegangen am 11. Juni 1985 
  Published    1985 
  Keywords    Mononuclear Phosphanepalladium Complexes, NMR Spectra, Binuclear Complexes, Bridging Heteroallenes C EE', Zwitterions PR3CEE' as Ligands 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-1351.pdf 
 Identifier    ZNB-1985-40b-1351 
 Volume    40 
11Author    Josef HahnRequires cookie*
 Title    Zusammensetzung von Rohsulfan, Nachweis der Sulfane H 2 S 9 bis H 2 S 35 Composition of Crude Sulfane Oil, Identification of the Sulfanes H 2 S 9 to H 2 S 35  
  Reference    Z. Naturforsch. 40b, 263—272 (1985); eingegangen am 8. Oktober 1984 
  Published    1985 
  Keywords    Sulfanes, NMR Spectra, Distribution of Sulfanes in Crude Oils, Chemical Shifts Caused by H 2 S" @BULLET Benzene Complexes 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0263.pdf 
 Identifier    ZNB-1985-40b-0263 
 Volume    40 
12Author    Jacek Bielawski, Kurt Niedenzu, JeanS. StewartRequires cookie*
 Title    Preparation and Characterization of Some Isoelectronic Boron-Nitrogen Analogs of Substituted Uracil [1]  
 Abstract    Several l,3,5-triaza-2-boracyclohexa-4,6-diones, which are isoelectronic analogs of substituted uracil, have been prepared by condensation reactions of boranes with biurets. They include species containing a NH or BH unit as potentially reactive sites. The latter are extremely sensitive to hydrolysis but are readily handled as the 2-methylaminoethanol derivative containing four-coordinate boron. 
  Reference    Z. Naturforsch. 40b, 389—392 (1985); received November 18 1984 
  Published    1985 
  Keywords    Boron-Nitrogen Compounds, Azaborauracils, l, 3, 5-Triaza-2-boracyclohexa-4, 6-diones, Spiroboron Compound, NMR Spectra 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0389.pdf 
 Identifier    ZNB-1985-40b-0389 
 Volume    40 
13Author    Ingo-Peter Lorenz, WolfgangH. Iller, Michael ConradRequires cookie*
 Title    Nukleophile Substitution an Thionyl-und Sulfurylchlorid mit Metallaten  
 Abstract    Synthese und Struktur der SO-bzw. S 0 2-Komplexe [(C6H50) 3P]2(C 0)2F e (S 0 /J) (n = 1, 2) Nucleophilic Substitution at Thionyl-and Sulfuryl Chloride by M etallates. Synthesis and Structure of the SO-and S 0 2-Complexes [(C6H 50) 3P]2(C 0) 2Fe(S0") (n = 1,2) 
  Reference    Z. Naturforsch. 40b, 1383 (1985); eingegangen am 22. April 1985 
  Published    1985 
  Keywords    Nucleophilic Substitution at SOCl2 and S 0 2C12, Oxidation of SO Complex, IR Spectra, NMR Spectra, X-Ray 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-1383.pdf 
 Identifier    ZNB-1985-40b-1383 
 Volume    40