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  • 1995-1999  (8)
  • General Chemistry  (5)
  • 19F  (1)
  • Calculations, ab initio  (1)
  • preparation
  • 1
    Electronic Resource
    Electronic Resource
    Structure of O-Methyl-N,N-bis(trifluoromethyl)hydroxylamine, (CF3)2NOCH3 (1996)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 129 (1996), S. 653-656 
    Details
    ISSN: 0009-2940
    Keywords: Hydroxylamine, O-methyl-N,N-bis(trifluoromethyl)-, gas-phase structure of ; Electron diffraction ; Calculations, ab initio ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The molecular structure of (CF3)2NOCH3 was determined by gas electron diffraction. The molecular intensities were reproduced by use of a single conformation with syn orientation of the O-CH3 group relative to the nitrogen lone pair. This was confirmed by ab initio calculations (HF/3-21G(*), polarization functions only on nitrogen, and MP2/6-31G*). The observed structure demonstrates that the generalized anomeric effect is of minor importance to this compound. The following skeletal geometric parameters (bond lengths [pm] and angles [°] with 3-s̰ uncertainties) were derived: N-C 142.9(7), N-O 142(3), O-C 145(3), CNC 118.0(9), CNO 108.1(17), and NOC 109.4(17). The experimental structure is well reproduced by the ab initio calculations.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19961290610
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  • 2
    Electronic Resource
    Electronic Resource
    Synthesis and Characterisation of New Arsonium Salts and Crystal Structures of Trimethylarsonium Undecafluorodiarsenate (CH3)3AsH+As2F11- and Trimethylarsonium Hexafluoroantimonate (CH3)3AsH+SbF6- (1999)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 1999 (1999), S. 2249-2254 
    Details
    ISSN: 1434-1948
    Keywords: Arsonium salts ; Superacidic systems ; Structure elicidation ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The reaction of trimethylarsane in the superacidic systems hydrogen/fluoride antimony pentafluoride and hydrogen fluoride/arsenic pentafluoride leads to trimethylarsonium fluorometallates. These salts are stable up to 60 °C and 5 °C, respectively. Structures were successfully elucidated in the cases of trimethylarsonium undecafluorodiarsenate and trimethylarsonium hexafluoroantimonate. (CH3)3AsH+As2F11- crystallizes in the monoclinic space group P21/n with four formula units per unit cell with the dimensions a = 7.362(1), b = 12.589(1), c = 13.598(1) Å and β = 95.37(1)°. (CH3)3AsH+SbF6- crystallizes in the monoclinic space group P21/m with four formula units per unit cell with the dimensions a = 8.313(1), b = 8.855(1), c = 13.285(1) Å and β = 94.358(1)°.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
  • 3
    Electronic Resource
    Electronic Resource
    Photoelectron-Spectrum and Electronic Structure of Perfluoro(2,4-dimethyl-3-oxa-2,4-diazapentane) (CF3)2N-O-N(CF3)2 (1998)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 1998 (1998), S. 1377-1380 
    Details
    ISSN: 1434-1948
    Keywords: Ab initio calculations ; Electronic structure ; Photoelectron spectroscopy ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The electronic structure of the title compound 1 has been investigated by UV photoelectron spectroscopy and quantum chemical calculations. 1 has two nearly degenerate nN lone-pair orbitals which form the two highest occupied MOs. The third highest occupied MO is mainly localized at the oxygen atom (n0). All calculations indicate that the molecule has a twisted C2 conformation.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
  • 4
    Electronic Resource
    Electronic Resource
    Synthese und Gasphasenstruktur von Perfluor(2,4-dimethyl-3-oxa-2,4-diazapentan) (CF3)2N-O-N(CF3),2 (1997)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 109 (1997), S. 1579-1580 
    Details
    ISSN: 0044-8249
    Keywords: Fluor ; Elektronenbeugung ; Stickstoff ; Strukturaufklärung ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19971091339
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  • 5
    Electronic Resource
    Electronic Resource
    Nichtmetallchemie. Von T. M. Klapötke und I. C. Tornieporth-Oetting. VCH Verlagsgesellschaft, Weinheim, 1994. 493 S., geb. 128.00 DM/Broschur 58.00 DM. - ISBN 3-527-29257-8/3-527-29052-4 (1995)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 107 (1995), S. 1653-1653 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19951071344
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  • 6
    Electronic Resource
    Electronic Resource
    Darstellung von Tetramethylammoniumbistrifluormethoxybromat(I) (CH3)4N+Br(CF3O)2- (1997)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 487-490 
    Details
    ISSN: 0044-2313
    Keywords: Tetramethylammonium bistrifluormethoxybromate(I) ; vibrational spectra ; 19F ; 13C NMR ; mass spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation of Tetramethylammonium Bistrifluormethoxybromate(I) (CH3)4N+Br(CF3O)2-We describe the preparation and characterization of (CH3)4N+Br(CF3O)2-. It is prepared via comproportionation of CF3OCl with (CH3)4N+BrCl2- under formation of Cl2 at -70°C, respectively via addition elimination reaction of CF3OCl with (CH3)4N+Br- at -70°C. The thermolabile salt is characterized by i.r., Raman, 19F, 13C NMR and mass spectroscopy.
    Notes: Es wird über die Darstellung und Charakterisierung von (CH3)4N+Br(CF3O)2- berichtet. (CH3)4N+Br(CF3O)2- erhält man sowohl durch Komproportionierung von CF3OCl mit (CH3)4N+BrCl2- bei -70°C unter Bildung von elementarem Chlor, als auch über die Additions-Eliminierungsreaktion von CF3OCI mit (CH3)4N+Br bei-70°C. Die thermolabile Verbindung wird durch IR-, Raman-, 19F-, 13C-NMR sowie Massenspektroskopie charakterisiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19976230177
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  • 7
    Electronic Resource
    Electronic Resource
    Über die Darstellung von Di(i-propyl)thiosulfonium-Salzen (1996)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 557-561 
    Details
    ISSN: 0044-2313
    Keywords: Thiosulfonium salts ; preparation ; vibrational, NMR spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Preparation of Di(i-propyl)thiosulfonium Salts [1]The preparation of the mercaptosulfonium salts (i-C3H7)2SSX+SbCl6- (X = H, D) and of the chlorothiosulfonium salts (i-C3H7)2SSCl+MF6- (M = As, Sb) and (i-C3H7)2SSSCl+SbCl6- is reported. They are formed by reaction of chlorinated or protonated (i-C3H7)2S with excess H2S or SCl2 and S2Cl2. The thiosulfonium compounds are characterized by vibrational and NMR spectroscopic methods.
    Notes: Es wird über die Darstellung der Mercaptosulfoniumsalze (i-C3H7)2SSX+SbCl6- (X = H, D) und der Chlorthiosulfoniumsalze (i-C3H7)2SSCl+MF6- (M = As, Sb) und (i-C3H7)2SSSCl+SbCl6- berichtet. Sie werden aus chloriertem oder protoniertem (i-C3H7)2S durch Kondensationsraktionen mit überschüssigem H2S oder SCl2 und S2Cl2 gebildet. Die Charakterisierung der Thiosulfoniumverbindungen erfolgt schwingungs- und NMR-spektroskopisch.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19966220328
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  • 8
    Electronic Resource
    Electronic Resource
    Synthesis and Gas-Phase Structure of Perfluoro(2,4-dimethyl-3-oxa-2,4-diazapentane), (CF3)2N—O—N(CF3)2 (1997)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 36 (1997), S. 1518-1519 
    Details
    ISSN: 0570-0833
    Keywords: electron diffraction ; fluorine ; nitrogen ; structure ; elucidation ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.199715181
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