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  • 1995-1999  (15)
  • Inorganic Chemistry  (10)
  • General Chemistry  (5)
  • 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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  • 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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  • 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 Trifluormethylhalogen-Iodaten(I) des Typs (CH3)4N+CF3IX- (X = F, Cl, Br) und Trifluormethyltrifluormethoxyiodat(I) (CH3)4N+CF3IOCF3- (1996)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 1749-1755 
    Details
    ISSN: 0044-2313
    Keywords: Tetramethylammonium trifluormethoxytrifluormethyliodate(I) ; Tetramethylammonium fluorotrifluormethyliodate(I) ; Tetramethylammonium chlorotrifluormethyliodate(I) ; Tetramethylammonium bromotrifluormethyliodate(I) ; vibrational spectra ; 19F13C NMR ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation of Trifluormethylhalogen Iodate(I) Salts (CH3)4N+CF3IX- (X = F, Cl, Br) and Trifluormethyltrifluormethoxy Iodate(I) (CH3)4N+CF3IOCF3-We describe the preparation of new trifluormethyliodate(I) salts CF3IX- (X = F, Cl, Br, OCF3). (CH3)4N+CF3ICl- and (CH3)4N+CF3IBr- are obtained via addition of CF3I with the corresponded tetramethylammonium halogenide. (CH3)4N+CF3IOCF3- is synthesized by comproportionation of (CH3)4N+CF3ICl- with CF3OCl under formation of Cl2 at -78°C. (CH3)4N+CF3IF- is formed either, through thermolysis of (CH3)4N+ CF3IOCF3- under separation of COF2, or reaction of CF3I with (CH3)4N+ OCF3-. The thermolabile compounds have been characterized by i.r., Raman, 19F-, 13C NMR spectroscopy.
    Notes: Es wird über die Darstellung einer Reihe neuer Iodate(I) des Typs CF3IX- (X = F, Cl, Br, OCF3) berichtet. (CH3)4N+CF3ICl- und (CH3)4N+CF3IBr- werden durch Additionsreaktion von CF3I an die entsprechenden Tetramethylammoniumhalogenide dargestellt. (CH3)4N+CF3IOCF3- erhält man durch Komproportionierung von (CH3)4N+CF3ICl- mit CF3OCl bei -78°C. CF3IF- entsteht sowohl, durch die Thermolyse von (CH3)4N+ CF3IOCF3- unter Abspaltung von COF2 bei -20°C, als auch durch Umsetzung von CF3I mit (CH3)4N+OCF3- bei -20°C.Die thermolabilen Verbindungen werden durch IR-, Raman-sowie Multikern-NMR-Spektroskopie charakterisiert.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19966221020
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  • 7
    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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  • 8
    Electronic Resource
    Electronic Resource
    Chlorofluorieren mit Trifluormethylhypochlorit CF3OCl. Darstellung und spektroskopische Charakterisierung von Trifluormethyliodchloridfluorid CF3I(Cl)F (1995)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 1727-1730 
    Details
    ISSN: 0044-2313
    Keywords: Trifluormethyliodinechloridefluoride ; vibrational spectra ; 19F NMR spectra ; mass spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chlorofluorinate with Trifluoromethylhypochlorite CF3OCl. Preparation and Spectroscopic Characterization of Trifluormethyliodinechloridefluoride CF3I(Cl)FThe preparation of a new iodine(III) compound, trifluormethyliodinechloridefluoride CF3I(Cl)F, via oxidative addition of trifluoromethylhypochlorite CF3OCl to trifluoromethyliodide CF3I is described. The thermolabile compound has been characterized by i.r., Raman, 19F NMR, and mass spectroscopy.
    Notes: Die Darstellung einer neuen Iod(III)-Verbindung, Trifluormethyliodchloridfluorid CF3I(Cl)F durch oxidative Addition von Trifluormethylhypochlorit CF3OCl an Trifluormethyliodid CF3I, wird mitgeteilt. Die thermolabile Verbindung wird durch IR-, Raman-, 19F-NMR- sowie Massenspektroskopie charakterisiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19956211019
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  • 9
    Electronic Resource
    Electronic Resource
    Neue N,N-Dichlormethylsulfonammoniumsalze CH3S(O)2NCl2X+MF6- (X = CH3, Cl, F; M = As, Sb) und Kristallstruktur von CH3S(O)2NCl2 (1997)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 333-339 
    Details
    ISSN: 0044-2313
    Keywords: N,N-Dichloromethylsulfonammonium salts ; crystal structure of CH3S(O)2NCl2 ; vibrational spectra ; 1H ; 13C ; 19F NMR ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New N,N-Dichloromethylsulfonammonium Salts CH3S(O)2NCl2X+MF6- (X = CH3, Cl, F; M = As, Sb) and Crystal Structure of CH3S(O)2NCl2The preparations of new dichlorammonium salts CH3S(O)2NCl2X+MF6- (X = CH3, Cl, F; M = As, Sb) and of CH3S(O)2NCl2 by oxidative halogenation respectively methylation are reported. The thermolabil compounds are characterized by IR, Raman, 1H, 13C, 19F NMR spectroscopy. N,N-Dichlormethylsulfonamid CH3S(O)2NCl2 crystallizes at 173(1) K in the orthorhombic space group Pnma with a = 615.1(3) pm, b = 937.3(5) pm, c = 970.3(5) pm and Z = 4.
    Notes: Die Darstellung einer Reihe von Dichlor ammoniumsalzen des Typs CH3S(O)2NCl2X+MF6- (X = CH3, Cl, F; M = As, Sb) wird angegeben. Die Salze werden durch oxidative Halogenierung bzw. Methylierung von CH3S(O)2NCl2 erhalten. Die Charakterisierung der thermolabilen Verbindungen erfolgte mittels IR-, Raman-sowie Multikern-NMR-Spektroskopie. Die Einkristallröntgenstrukturanalyse von N,N-Dichlormethylsulfonamid CH3S(O)2NCl2 bei 173(1) K ergab: orthorhombische Raum gruppe Pnma mit a = 615,1(3) pm, b = 937,3(5) pm, c = 970,3(5) pm und Z = 4.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19976230153
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  • 10
    Electronic Resource
    Electronic Resource
    Dihydroxycarbeniumhexafluorometallate - Synthese, spektroskopische Charakterisierung sowie Kristallstruktur von HC(OH)2+AsF6- (1996)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 1404-1410 
    Details
    ISSN: 0044-2313
    Keywords: Dihydroxycarbeniumion ; crystal structure ; vibrational spectra ; NMR-spectra ; superacid reaction ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dihydroxycarbeniumhexafluorometallates - Synthesis, Spectroscopic Characterization, and Crystal Structure of HC(OH)2+AsF6-The preparation of HC(OH)2+ MF6- (M = As, Sb) by protonation of HCOOH in the superacid systems HF/MF5 is reported. The very hydrolysable and thermolabile salts are characterized by vibrational and NMR spectroscopic methods. Under inert conditions they are stable at -40°C for some weeks. HC(OH)2+AsF6- crystallizes in the orthorhombic space group Pbca (No. 61) with a = 965.8(1), b = 1582.20(16), c = 766.40(8) pm with eight formula units per unit cell.
    Notes: Es wird über die Darstellung von HC(OH)2+MF6- (M = As, Sb) durch Protonierung von Ameisensäure in den supersauren Systemen HF/MF5 berichtet. Die hydrolyseempfindlichen und thermolabilen Dihydroxycarbeniumsalze werden schwingungs- und NMR-spektroskopisch charakterisiert. Sie sind unter inerten Bedingungen bei -40°C wochenlang haltbar.HC(OH)2+AsF6- kristallisiert in der orthorhombischen Raumgruppe Pbca (Nr. 61) mit den Gitterkonstanten a = 965,8(1), b = 1582,20(16) und c = 766,40(8) pm mit acht Formeleinheiten in der Elementarzelle.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19966220821
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