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  • 11
    Electronic Resource
    Electronic Resource
    Fluorinated tropylium ions in the mass spectra of some polyfluoroaromatic compounds (1968)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 1 (1968), S. 417-423 
    Details
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The most prominent ion in the mass spectra of C6F5CH2X (X = H, Br, CH:CH2, COCl, and CH2C6F5) is C7F5H2+, formulated as the pentafluorotropylium cation. This ion is also found, in an amount comparable to the parent ion, in the spectrum of (C6F5)2CH2. The heptafluorotropylium cation is found similarly in the spectrum of C6F5CF3. The mass spectra of (C6F5)2CHBr and [(C6H5)2CH]2 exhibit an ion C13F10H+ as the base peak, which is probably a pentafluorophenylpentafluorotropylium cation.The alcohol (C6F5)2CHOH shows loss of C6F5, followed by 2H, as a major breakdown pathway.The mode of formation, and the subsequent fragmentation, of the major ions in these spectra, are discussed.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/oms.1210010310
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  • 12
    Electronic Resource
    Electronic Resource
    Electron-impact studies of organometallic molecules - VIFor Part V, see Ref. 1.. Some transition metal derivatives of alicyclic fluorocarbons (1968)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 1 (1968), S. 503-517 
    Details
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The mass spectra of a series of alicyclic fluorocarbon complexes of manganese, rhenium, iron and ruthenium are described and discussed. It is shown that the breakdown of these complexes after ionization depends on the nature of the metal, and of the other groups attached to the metal. Effects due to elimination of metal halides, formation of metal fluoride ions, and ligand transfer reactions are found, and result in significant differences in the fragmentation patterns of the complexes from those of the parent fluorocarbons.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/oms.1210010403
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  • 13
    Electronic Resource
    Electronic Resource
    Electron-impact studies of organometallic molecules - XFor Part IX, see Ref. 1.. Some simple transition metal fluorocarbon complexes (1969)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 2 (1969), S. 63-79 
    Details
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The mass spectra of several fluoroalkyl, fluoroalkenyl and fluoroacyl complexes of manganese, rhenium, iron and ruthenium carbonyls are described. After loss of carbonyl groups, fluoroalkyl compounds eliminate an olefin, with formation of metal halide species. A trifluorovinyl complex shows a novel elimination of a carbon atom to give an ion postulated to be a difluorocarbene-metal fluoride; the occurrence of difluorocarbene-metal ions in the spectra of some related complexes is also discussed. The spectra of the acyl complexes show little evidence of elimination of the acyl carbonyl group; the major process is fission of the CO—Rf bond with loss of a fluoroalkyl radical and formation of the cationic metal carbonyl, e.g. π-C5H5M(CO)3+ (M = Fe or Ru). The relevance of thermal or photochemical model reactions to processes occurring in the mass spectrometer is discussed.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/oms.1210020107
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  • 14
    Electronic Resource
    Electronic Resource
    Electron-impact studies of organometallic molecules - VIII:For Part VII, see ref. 1. Some transition metal derivatives of polyfluorobenzenes (1968)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 1 (1968), S. 835-846 
    Details
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The mass spectra of (π-C5H5)2Ti(C6F5)X (X = Cl and C6F5), C6F5Re(CO)5, RfFe(CO)2(π-C5H5) (Rf = C6F5, 4-HC6F4, and three isomeric H2C6F3), and C6F5Ru(CO)2(π-C5H5) are compared to those of C6F5X (X = F, Cl, Br, I) and the three isomers of C6F4H2. Significant differences occur, apparently depending on the relative thermodynamic stabilities of the various fragments which may be formed. Comparison of the mass spectra of pentafluorophenyl- and pentafluorobicyclo[2.2.0]hexa-2,5-dien-2-yl-Re(CO)5 show that similar ions are produced by both complexes, perhaps because of thermal isomerisation before ionisation.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/oms.1210010608
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  • 15
    Electronic Resource
    Electronic Resource
    Electron-impact studies of organometallic molecules - XI:For Part X, see ref. 1.. Some polyfluoroaromatic derivatives of ferrocene (1969)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 2 (1969), S. 997-1003 
    Details
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The mass spectra of eight ferrocene derivatives containing C6F5, C6F5CO, C6F5CH2 or p-CH3OC6F4 groups attached to one or both cyclopentadienyl rings are described and discussed. In addition to features normally found in the mass spectra of ferrocene compounds, the migration of fluorine to the iron atom leads to the formation of ions such as [C5H4COFeF]+. The elimination of neutral FeF2 or C5H5FeF molecules is also found.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/oms.1210021008
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  • 16
    Electronic Resource
    Electronic Resource
    Electron-impact studies of organometallic molecules - VII.For Part VI, see Ref. 1. Some transition metal complexes derived from 3,3,3-trifluoroprop-1-yne (1968)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 1 (1968), S. 687-702 
    Details
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The mass spectra of ten complexes derived from 3,3,3-trifluoroprop-1-yne, namely (CF3C≡CH)CO2(CO)6, (CF3C≡CH) [π—C5H5Ni]2, (CF3C≡CH)3Co2(CO)4, CF3CH2C[Co(CO)3]3, are discussed in terms of their structures. The major processes observed can be satisfactorily explained in terms of (i) loss of carbonyl groups, if present; (ii) loss of one fluorine atom from the parention (iii) elimination of neutral metal fluorides, with ligand transfer reactions in the case of the iron complexes; (iv) elimination of neutral fluorocarbon molecules.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/oms.1210010509
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  • 17
    Electronic Resource
    Electronic Resource
    Dodecacarbonyltriruthenium (1968)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 7 (1968), S. 427-432 
    Details
    ISSN: 0570-0833
    Keywords: Dodecacarbonyltriruthenium ; Ruthenium ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Since the pioneering work of Mond and his coworkers the metal carbonyls and their derivatives have been under active study, and, as in other areas of inorganic chemistry, research activity has greatly increased in the last twenty years. Whereas hitherto our knowledge of the carbonyls of the heavier transition metals has been seriously hampered by a lack of good methods of synthesis, new preparative methods have recently been developed for Ru3(CO)12, and many new ruthenium carbonyl complexes are being discovered as its chemistry is explored.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.196804271
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  • 18
    Electronic Resource
    Electronic Resource
    Nucleophilic Reactions of Metal Carbonyl Anions with Fluorocarbons (1968)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 7 (1968), S. 747-753 
    Details
    ISSN: 0570-0833
    Keywords: Nucleophilic reactions ; Fluorocarbons ; Carbonylmetalates ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: This article describes the formation of carbon-metal bonds by reacting carbonylmetalate ions with fluorocarbons. Complex formation depends on the nucleophilic behavior of the anions, and the susceptibility of fluorocarbons to this form of attack.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.196807471
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  • 19
    Electronic Resource
    Electronic Resource
    Nucleophile Reaktionen von Carbonylmetall-Anionen mit Fluorkohlenstoffverbindungen (1968)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 80 (1968), S. 835-841 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aus Carbonylmetallationen und Fluorkohlenstoffverbindungen lassen sich Komplexe mit Kohlenstoff-Metall-Bindungen herstellen. Ihre Bildung hängt vom nucleophilen Verhalten der Anionen und von der Empfindlichkeit der Fluorkohlenstoffverbindungen gegenüber nucleophilem Angriff ab.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19680802004
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  • 20
    Electronic Resource
    Electronic Resource
    σ,π-C8H8Os(CO)3, an Unusual Cyclooctatetraene-Transition Metal Complex (1968)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 7 (1968), S. 639-639 
    Details
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.196806391
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