| 41 | Author
| R. Minkwitz, H. Prenzel, H. Pritzkow | Requires cookie* | | Title
| Beiträge zur Chemie der Schwefel-Halogenide, 17 [1] Dimethyl(methylthio)-und Dimethyl(phenylthio)sulfonium-Salze Contributions to the Chemistry of Sulfur Halides, 17 [1] Dimethyl(methylthio)-and Dimethyl(phenylthio)sulfonium Salts  | | | Abstract
| IR, Raman and NMR spectroscopic studies of dimethyl(methylthio)-and dimethyl(phenyl-thio)sulfonium salts (CH 3) 2 SSR + A~ (R -CH 3 , C 6 H 5 ; A = AsF 6 ~, SbCl 6 ~) are reported. The crystal structure of (CH 3) 2 SSCH 3 + AsF 6 ~ shows for the cation a conformation different from that reported for the hexachloroantimonate. | | |
Reference
| Z. Naturforsch. 42b, 750—755 (1987); eingegangen am 5. Dezember 1986/4. Februar 1987 | | |
Published
| 1987 | | |
Keywords
| Thiosulfonium Salts, NMR Spectra, Crystal Structure | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/42/ZNB-1987-42b-0750.pdf | | | Identifier
| ZNB-1987-42b-0750 | | | Volume
| 42 | |
42 | Author
| Hansjörg Grützm, H. Erbert, W. Roesky, Mathias Noltem, GeorgeM. Sheldrick | Requires cookie* | | Title
| Substitutionsreaktionen am N-[l-Chlor-2,2,2-trifluor-l-(trifluormethyl)ethyl]-dimethyIformamidin Substitution Reactions with N -[l-Chloro-2,2,2-trifluoro-l-(trifluorom ethyl)ethyl]-dim ethylform am idine  | | | Abstract
| It is difficult to achieve nucleophilic attack on a carbon atom bonded on two trifluoromethyl groups. However, N-[l-chloro-2,2,2-trifluoro-l-(trifluoromethyl)ethyl]-dimethylformamidine (1) reacts readily with H20 , MeOH, EtSH and P(OM e)3 even under mild conditions to form products 2, 3, 4 and 5. The reaction between 1 and Ph2PH is complex but leads in nearly quantitative yield to N-[2,2,2-trifluoro-l-(trifluoromethyl)ethyl]-dimethylformamidinium chloride 6 which has been characterized by an X-ray structure analysis. A reaction mechanism is proposed. | | |
Reference
| Z. Naturforsch. 42b, 1245—1248 (1987); eingegangen am 5. Mai/27. Juni 1987 | | |
Published
| 1987 | | |
Keywords
| MS Spectra, Fluoroorganic Compounds, NMR Spectra | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/42/ZNB-1987-42b-1245.pdf | | | Identifier
| ZNB-1987-42b-1245 | | | Volume
| 42 | |
44 | Author
| Cl, Br, Rolf Minkwitz, Arnulf Werner | Requires cookie* | | Title
| Methyl(trifluormethyl)haIogensulfonium-Salze [ 1 ] Halogen = F, CI, Br, I Methyl(trifluoromethyl)halosulfonium Salts [1]  | | | Abstract
| The preparation and spectroscopic characterization of the halosulfonium salts CH ,(CF,)SHal + A (Hal = F, Cl, Br, I, A" = AsF 6 ~~, SbF 6 ~, SbCl A ") is reported. The compounds are synthesized by the reaction of the sulfane CH,SCF, with XeF + MF h ~, Cl.F+AsFf,", Cl 2 /AsF 5 , Cl 2 /SbCl 5 , Br : /AsF 5 , or I 3 + MF 6 ~ (M = As, Sb), resp., at low temperatures. | | |
Reference
| Z. Naturforsch. 43b, 403—411 (1988); eingegangen am 10. Dezember 1987 | | |
Published
| 1988 | | |
Keywords
| Preparation Raman Spectra, NMR Spectra, IR Spectra | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/43/ZNB-1988-43b-0403.pdf | | | Identifier
| ZNB-1988-43b-0403 | | | Volume
| 43 | |
45 | Author
| Rolf Minkwitz, Andreas Liedtke | Requires cookie* | | Title
| Darstellung und spektroskopische Charakterisierung von FIuor(trifluormethylsulfenyl)phosphonium-Salzen, CF 3 SPH 2 F + MF 6 -(M = As, Sb) Preparations and Spectroscopic Characterization of Fluoro(trifluoromethylsulfenyl)phosphonium Salts, CF 3 SPH 2 F~MF 6 ~ (M = As, Sb)  | | | Abstract
| The preparations of the title compounds are reported. The species have been characterized by multinuclear ('H, l3 C, 19 F, 3I P) NMR techniques. Their decomposition, leading mainly to PH 2 F 2 + MF 6 ~, was also studied. The Raman spectrum of CF,SPH 2 F + AsF 6 ~ is presented. | | |
Reference
| Z. Naturforsch. 43b, 1263—1267 (1988); eingegangen am 1. Juni 1988 | | |
Published
| 1988 | | |
Keywords
| Fluoro(trifluoromethylsulfenyl)phosphonium Salts, NMR Spectra, Raman Spectra | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/43/ZNB-1988-43b-1263.pdf | | | Identifier
| ZNB-1988-43b-1263 | | | Volume
| 43 | |
47 | Author
| G. Alina, S. Z. Aitseva11 ', SergeyS K Arlova, ElenaS A Lekseyevaa, LeonidA A Slanova, EvgeniV A Vtom Onovb, JörgL. Orberthb | Requires cookie* | | Title
| -Allylgermatrane. Synthesis, Structure and Reaction with Diazomethane  | | | Abstract
| Reaction of allyltribromogermane (2), readily available from dibrom o(l,4-dioxane)ger-manium(II) (1) and allylbromide, with tris(2-tributylstannoxyethyl)-amine (4) gives 1-allylgermatrane (3) in almost quantitative yield. 3 crystallizes from /7-pentane as a colourless crystalline solid which was characterized by 'H and ,3C NMR spectroscopy and by an X-ray crystal structure study. The "atrane" skeleton shows a strong conformational disorder; the Ge-N distance of 2.208(3) A suggests the presence of a coordinative Ge-N bond. Treatment of 1 -allylgermatrane (3) with CH2N2 in the presence of catalytic amounts of Pd(OAc)2 affords 1-cyclopropylmethylgermatrane (5) in high yield. | | |
Reference
| (Z. Naturforsch. 52b, 30—34 [1997]; received August 16 1996) | | |
Published
| 1997 | | |
Keywords
| Germanium, Germatrane, Cyclopropanation, X-Ray, NMR Spectra | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/52/ZNB-1997-52b-0030.pdf | | | Identifier
| ZNB-1997-52b-0030 | | | Volume
| 52 | |
48 | Author
| Ralf Steudel, Monika Kustos, Andreas Prenzel | Requires cookie* | | Title
| S  | | | Abstract
| y n t h e s is a n d S t r u c t u r e o f B i s [ d i(m e t h y lc y c lo p e n t a d ie n y l) c h lo r o -t it a n iu m ] t r is u lf id e [ (C p 2 C lT i)2S 3 ] -a R e a g e n t fo r T r is u lf id e L ig a n d T r a n s f e r R e a c t io n s [1] The dinuclear metallacycle of [Cp2Ti(/z-S2)2TiCp2] reacts with phosgene or thiophosgene to give [(CP2CITO2S3] which has been characterized by 1H and l3C NMR spectra as well as by an X-ray structure analysis. The trisulfido complex contains a helical TiSSSTi unit and may serve as an S3 transfer reagent in reactions with SCl-functional compounds. | | |
Reference
| (Z. Naturforsch. 52b, 79—82 [1997]; received June 18 1996) | | |
Published
| 1997 | | |
Keywords
| Titanocene Complexes, Polysulfide Ligands, Structure, NMR Spectra | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/52/ZNB-1997-52b-0079.pdf | | | Identifier
| ZNB-1997-52b-0079 | | | Volume
| 52 | |
50 | Author
| Lu | Requires cookie* | | Title
| Synthesis of N,C,C-Trilithio-2,5-diaIlyl- pyrrole and its Solvent-Controlled Reactions with Electrophiles  | | | Abstract
| te d so lu tio n s ca n b e co o led to -80 °C w ith o u t p rec ip ita tio n . B e rn d W ra c k m e y e r5 5 B e rn d Schw arze Iris O rd u n g , 2,5-Diallylpyrrole 1 reacts with an excess of "BuLi in hexane/diethylether to give the N,C,C-trilithio reagent 2. 7Li NMR spectra of 2 in THF/ HMPTA at low tem perature indicate the pres ence of an ionic species. Reactions of 2 in TH F with electrophiles such as H 20 , D20 , Mel, Me3SiCl and Me3SnCl lead selectively to the cis-isomers 3a -6 a, whereas the analogous reactions in hexane or diethylether afford mixtures contain ing both cis-and rram-isomers (e.g. 3b). | | |
Reference
| Z. Naturforsch. 52b, 427—430 (1997); received November 5 1996 | | |
Published
| 1997 | | |
Keywords
| Pyrrole, Solvent Controlled Reactions, NMR Spectra | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/52/ZNB-1997-52b-0427_n.pdf | | | Identifier
| ZNB-1997-52b-0427_n | | | Volume
| 52 | |
51 | Author
| S. | Requires cookie* | | Title
| Silaheterocyclen, XXXIII [1, 2]: Cycloadditions-Reaktionen des 1.1-Dichlor-2-neopentyIsilaethens mit Pentafulvenen  | | | Abstract
| ilaheterocycles, X X X III [1, 2]: C y c lo a d d itio n R e a c tio n s of 1 .1 -D ic h lo ro -2 -n eo p e n ty lsilen e w ith P e n ta fu lv e n e s N o rb e rt A u n er* , C la u s-R ü d ig e r H e ik e n w ä ld e r The reaction between in situ formed l,l-dichloro-2-neopentyl-l-silene, Cl2Si=CHCH2rBu (2), and 1,1-dimethylpentafulvene (5) leads to the formation of exo/endo-isomeric [4+2] cy-cloadducts 9 and [2+2] stereoisom ers 10 in good yields. NMR spectroscopic investigations of the product mixture prove the different modes of the silene cycloaddition reactions ([4+2] vs [2+2] addition). Treatment of 9 and 10 with LiA lH 4 and LiMe yield the stereo-and regioisomeric derivati ves (LiAlH 4: 16. 17; MeLi: 18, 19), whereas PhMgBr reacts with 10 to give only the mono substitution, the [4+2] com pound 20, and the diphenylated silacyclobutane 21. The reactions of silene 2 with pentafulvenes 6 -8 lead to similar results. | | |
Reference
| Z. Naturforsch. 52b, 500—514 (1997); eingegangen am 19. Dezember 1996 | | |
Published
| 1997 | | |
Keywords
| Cycloaddition Reactions, Neopentylsilene, Pentafulvenes, NMR Spectra | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/52/ZNB-1997-52b-0500.pdf | | | Identifier
| ZNB-1997-52b-0500 | | | Volume
| 52 | |
52 | Author
| Bernd Wrackmeyer, Jürgen Weidinger | Requires cookie* | | Title
| N-Boryl-Substituted Bis(amino)stannylenes and -plumbylenes  | | | Abstract
| Two equivalents of N-lithio-N-trimethylsilyl-amino-9-borabicyclo[3.3.1]nonane (1) react with tin and lead dichloride by salt elimination to give the corresponding bis(amino)stannylene 2 and -plumbylene 3, respectively. The compounds 2 and 3 are monomers in solution and were characterized by 'H , i3C, 14N, 29Si, ll9Sn and 207Pb NMR spectroscopy. | | |
Reference
| Z. Naturforsch. 52b, 947—950 (1997); received May 22 1997 | | |
Published
| 1997 | | |
Keywords
| Boron, Tin, Lead, Metal Amides, NMR Spectra | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/52/ZNB-1997-52b-0947.pdf | | | Identifier
| ZNB-1997-52b-0947 | | | Volume
| 52 | |
53 | Author
| Max Herberhold, Volker Tröbs, Hong Zhou, Bernd Wrackmeyer | Requires cookie* | | Title
| Reactivity and NMR Spectroscopic Properties of Tri(terf-butyl)plumbyl-amine  | | | Abstract
| Tri(rm-butyl)plumbyl-amine 1 was prepared and studied by one-(ID) and two-dimensional (2D) 'H, i3C, 5N and 207Pb NMR which allowed determination of the coupling signs /(Pb,13C) (> 0), 2y(207P b,'3C) (> 0), '7(207Pb,15N) (> 0; reduced coupling constant 1 A^(207Pb,I5N) < 0) and 27(207Pb-N-'H) (< 0). Transamination of 1 with aniline and pyrazole afforded the corresponding aniline (2) and pyrazole derivatives (3), respectively. N-Lithiation of 1, followed by treatment with Me3SiCl gave the tri(rm-butyl)plumbyl-trimethylsilyl-amine 5. The multinuclear magnetic resonance data of 2, 3 and 5 are presented. Trimethylplumbyl-phenyl-amine and trimethylplumbyl-ter/-butyl(dimethyl)silyl-amine were prepared and their NMR data were measured for comparison. | | |
Reference
| Z. Naturforsch. 52b, 1181—1184 (1997); received July 14 1997 | | |
Published
| 1997 | | |
Keywords
| Lead, Organolead-nitrogen Compounds, NMR Spectra, Coupling Constants | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/52/ZNB-1997-52b-1181.pdf | | | Identifier
| ZNB-1997-52b-1181 | | | Volume
| 52 | |
56 | Author
| Rudolf Allmann, Eberhard Hohaus, Stanislaw 01ejnik | Requires cookie* | | Title
| Boron Chelates and Boron-Metal Chelates, X [1] 3-(2-Hydroxyphenyl)-2,2-diphenyl-l-oxa-3-azonia-2-borata-naphthalene- methanol (1/1): Synthesis, Spectroscopic Investigations and Crystal Structure  | | | Abstract
| 2-Aminophenol, salicylaldehyde and diphenylboric anhydride react in methanol to form a fluorescent, chelate-like azomethineboron compound containing methanol. The title compound, C25H20BNO2 • CH3OH, was examined by UV, IR, HI, and NMR spectroscopy as well as by thermogravimetry and X-ray structure analysis (Pbnb, a= 8.815, b= 17.309, c = 28.992 Ä, R = 5.5%). These investigations show the six-membered chelate ring (chelate A) to exist as formulated in [2] and not as a five-membered chelate ring B. One methanol molecule connects two chelate molecules by hydrogen bonds, resulting in an overall ratio of chelate to methanol of 1 : 1. | | |
Reference
| Z. Naturforsch. 37b, 1450—1455 (1982); received May 1 O/June 11 1982 | | |
Published
| 1982 | | |
Keywords
| Boron Chelate, Azomethine, Crystal Structure, UV Spectra, NMR Spectra | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/37/ZNB-1982-37b-1450.pdf | | | Identifier
| ZNB-1982-37b-1450 | | | Volume
| 37 | |
58 | Author
| S. V. Verkhovskii, B. Z. Malkin, A. Trokiner, A. Yakubovskii, E. Hallet, A. Ananyev, A. Gerashenko, Yu Piskunov, S. Saikin, A. Tikhomirov, V. Ozhogin | Requires cookie* | | Title
| Quadrupole Effects on 73 Ge NMR Spectra in Isotopically Controlled Ge Single Crystals  | | | Abstract
| NMR spectra of 73 Ge (nuclear spin / = 9/2) in perfect single crystals of germanium with different isotopic content were measured at 80, 300, and 450 K. The observed specific line shapes gave evidence of the isotopic disorder, in particular, abnormal broadening of the spectrum was found for the magnetic field directed along the [111] axis. Local lattice deformations in the germanium crystal lattice due to "isotopic disorder" were calculated in the framework of the adiabatic bond charge model. The results were applied to study random non-cubic crystal field interactions with the nuclear quadrupole moments and corresponding effects on NMR spectra. The simulated second moment of the resonance frequency distributions caused by the magnetic dipole-dipole and electric quadrupole interactions are used to analyze the lineshapes, theoretical predictions being in a qualitative agreement with the experimental data. | | |
Reference
| Z. Naturforsch. 55a, 105—110 (2000); received September 11 1999 | | |
Published
| 2000 | | |
Keywords
| Isotopic Disorder, Ge Single Crystal, NMR Spectra, Quadrupole Effects | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_A/55/ZNA-2000-55a-0105.pdf | | | Identifier
| ZNA-2000-55a-0105 | | | Volume
| 55 | |
59 | Author
| Ekkehard Lindner, Claus-Peter Krieg, Sigurd Hoehne, Axel Rau | Requires cookie* | | Title
| Darstellung und Eigenschaften von und Reaktionen mit metallhaltigen Heterocyclen, XXTTT [1] Untersuchungen zur P=S-heteroanalogen Cyclocotrimerisierung von Alkinen mit Nitrilen bzw. Isocyaniden Preparation and Properties of, and Reactions with, Metal-Containing Heterocycles, XXIII [1] Investigations on P=S-Heteroanalogous Cyclocotrimerization of Alkynes with Nitriles and Isocyanides, Respectively  | | | Abstract
| Structure of [(OC)4MnSP(CH 3)2]2, The dimanganadiphosphadithiacyclohexadiene [(OC)4MnSP(CH 3)2]2 (1) crystallizes in the H,C CH, \ / 3 / P =\ (OC).Mn Mn(CO), * \ / S=P /\ HjC CHj 1 /-PC CH * (OC)tMn I CH, * L Y\ CH, (OCULMn | CHj . CO \ ^ C" \R' L \ t-Bu C6H" C6H5 R'NC a b c PR'3 d R = C02CHJ 3a-d orthorhombic space group Pbca with Z = 4. Attempts to cyclotrimerize the intermediate | | |
Reference
| Z. Naturforsch. 36b, 1487—1492 (1981); eingegangen am 28. Juli 1981 | | |
Published
| 1981 | | |
Keywords
| Isocyanide Complexes of Heteromanganacyclopentadienes, Mass Spectra, IR Spectra, NMR Spectra | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/36/ZNB-1981-36b-1487.pdf | | | Identifier
| ZNB-1981-36b-1487 | | | Volume
| 36 | |
60 | Author
| Ertugrul Arpac, Lutz Dahlenburg | Requires cookie* | | Title
| Oligophosphin-Liganden, I  | | | Abstract
| Einfache Synthesen der trimethylenverknüpften Triphosphine RP[(CH2)3PPh2]2 und ihrer Vorstufen Ph2P(CH2)3P(H)R (R Ph, Me) Oligophosphine Ligands, I Convenient Syntheses of the Trimethylene-linked Triphosphines RP[(CH2)3PPh2]2 and their Precursors Ph2P(CH2)3P(H)R (R = Ph, Me) The secondary-tertiary diphosphines Ph2P(CH2)3P(H)Ph (2) and Ph2P(CH2)3P(H)Me (3) have been prepared from Ph2P(CH2)3Cl (1) and NaP(H)Ph or LiP(H)Me, respectively. Metallation of 2 and 3 with n-butyl lithium and further reaction of the lithio-derivatives with one equivalent of 1 yields PhP[(CH2)3PPh2]2 (4) and MeP[(CH2)3PPh2]2 (5). The tritertiary phosphines 4 and 5 have likewise been obtained from RPLi2 (R = Ph, Me) and two equivalents of 1. The synthesis of 4 from PhPCl2 and two equivalents of the Grignard reagent of 1 is also reported. Each of the phosphines 1-5 was characterized by NMR and mass spectroscopy. | | |
Reference
| Z. Naturforsch. 35b, 146—152 (1980); eingegangen am 26. Oktober 1979 | | |
Published
| 1980 | | |
Keywords
| Secondary-tertiary Diphosphines, Tritertiary Phosphines, Preparation, NMR Spectra, Mass Spectra | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/35/ZNB-1980-35b-0146.pdf | | | Identifier
| ZNB-1980-35b-0146 | | | Volume
| 35 | |
|