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  • 1
    Electronic Resource
    Electronic Resource
    Infrared Spectra and Photochemistry of Isodiazene and Its Deuterated Isotopomers (1989)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 122 (1989), S. 749-752 
    Details
    ISSN: 0009-2940
    Keywords: Matrix isolation ; Photochemistry ; Theoretical vibrational spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Infrarot-Spektren und Photochemie von Isodiazen und seinen deuterierten IsotopomerenDie Matrixisolation von Aminoisocyanat eröffnet einen neuen ergiebigen Weg zur Darstellung von Isodiazen (Aminonitren). Damit ist es möglich geworden, nicht nur sein IR-Spektrum eindeutig festzulegen und mit Hilfe von ab-initio-Rechnungen zu interpretieren, sondern auch seine Photochemie zu untersuchen.
    Notes: The matrix isolation of aminoisocyanate opens a new efficient route for the preparation of isodiazene (aminonitrene). Its infrared spectrum can now, with the help of ab initio calculations, be interpreted, and its photochemistry can be studied.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19891220424
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  • 2
    Electronic Resource
    Electronic Resource
    C5S2 (1,2,3,4-Pentatetraen-1,5-dithion), ein neues Sulfid des Kohlenstoffs (1990)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 123 (1990), S. 1753-1756 
    Details
    ISSN: 0009-2940
    Keywords: Matrix isolation ; Flash pyrolysis ; Photochemistry ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1,2,3,4-Pentatetraene-1,5-dithione (4) can be prepared by 254-nm photolysis or by flash pyrolysis of the precursors 3 and 5. The IR spectrum of matrix-isolated 4 (argon, 12 K) as well as its 13C-NMR and UV/VIS spectra are reported. The calculated electron excitation energies of C3S2 and C3S2 (4) are in accordance with the experiment.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19901230828
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  • 3
    Electronic Resource
    Electronic Resource
    HCl-Abspaltung aus Ethansulfenylchlorid und Chlordimethylsulfid (1991)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 124 (1991), S. 2609-2612 
    Details
    ISSN: 0009-2940
    Keywords: Matrix isolation ; Elimination of HCl, photochemically ; Flash pyrolysis ; Calculations, ab initio ; Photochemistry ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: HCl Elimination from Ethanesulfenyl Chloride and Chlorodimethyl SulfideThioacetaldehyde (5) is prepared by matrix photolysis of ethanesulfenyl chloride (3) or thiirane (4) and by flash pyrolysis of allyl ethyl sulfide (6). Matrix irradiation of 3 or 5 with 222-nm light results in a dehydrogenation, and a mixture of thiirene (7), ethynethiol (8), and thioketene (9) is formed. Flash pyrolysis of chlorodimethyl sulfide (1) yields ethenethiol (11) together with thiirane (4), whereas ethanesulfenyl chloride (2) gives ethene under the same conditions. The identification of thioacetaldehyde (5) is based on the comparison between the experimental and calculated IR spectra.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19911241134
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  • 4
    Electronic Resource
    Electronic Resource
    Matrix-Isolation of Iodine Superoxide and Iodine Dioxide (1997)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 130 (1997), S. 179-181 
    Details
    ISSN: 0009-2940
    Keywords: Matrix isolation ; Pyrolysis ; Photochemistry ; Iodine compounds ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Flash pyrolysis of a gas mixture containing iodine, oxygen and argon yields the hitherto unknown iodine superoxide, which can be identified by its UV absorption (λ max= 254 nm) after trapping the pyrolysate at 12 K. Irradiation converts iodine superoxide into iodine dioxide, identified by its IR and UV spectra.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19971300207
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  • 5
    Electronic Resource
    Electronic Resource
    Photoisomerisierung von Halogendimethylsulfiden (1991)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 124 (1991), S. 2603-2607 
    Details
    ISSN: 0009-2940
    Keywords: Matrix isolation ; Halogen shift ; Calculations, ab initio ; Photochemistry ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Photoisomerization of Halogenodimethyl SulfidesPhotolysis of iodo- (3a), bromo- (3b), and chlorodimethyl sulfide (3c) in an argon matrix at 12 K gives rise to isomeric species 4a  -  c. Ab initio calculations indicate that in these isomers the halogen has been removed from the carbon atom and forms a weak bond to forms a weak bond to the sulfur atom. This conclusion is based on the comparison of observed and calculated IR spectra of the photoisomers.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19911241133
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  • 6
    Electronic Resource
    Electronic Resource
    Heterocumulene, 8 C4OS (4-Thioxo-1,2,3-butatrien-1-on), C4S2 (1,2,3-Butatrien-1,4-dithion) und C3S (3-Thioxo-1,2-propadienyliden) - Darstellung und spektroskopische Eigenschaften (1991)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 124 (1991), S. 2617-2622 
    Details
    ISSN: 0009-2940
    Keywords: Matrix isolation ; Photochemistry ; Flash pyrolysis ; Quantumchemical calculations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Heterocumulenes, 8.  -  C4OS (4-Thioxo-1,2,3-butatrien-1-one), C4S2 (1,2,3-Butatriene-1,4-dithione), and C3S (3-Thioxo-1,2-propadienylidene) - Preparation and Spectroscopic PropertiesC4OS (8) is prepared by matrix photolysis and by flash pyrolysis of the precursor molecule 4, C4S2 (12) by matrix photolysis of 10, 11, and 13. Upon irradiation both 8 and 12 are split reversibly into C3S (9) and CO or CS. The IR and UV/Vis spectra of C4OS (8), C3S (9), and C4S2 (12) are reported. Quantumchemical calculations have been performed for the structures, harmonic vibrational frequencies, singlet-triplet gaps, and electronic transition energies of 8 and 12.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19911241136
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  • 7
    Electronic Resource
    Electronic Resource
    Kleine Ringe, 83. C3F2-Isomere: Erzeugung durch gepulste Blitzpyrolyse und matrixspektroskopische Identifizierung (1994)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 127 (1994), S. 779-782 
    Details
    ISSN: 0009-2940
    Keywords: Matrix isolation ; Photochemistry ; Flash pyrolysis ; Carbenes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Small Rings, 83[1].  -  C3F2 Isomers: Generation by Pulsed Flash Pyrolysis and Matrix-Spectroscopic IdentificationMatrix-isolated difluorovinylidenecarbene (4) has been generated by pulsed flash pyrolysis from 1-chloro-3,3-difluoro-cyclopropene (8a) and 3,3-difluoro-1,2-diiodocyclopropene (8b). By subsequent photolysis 4 isomerizes to difluoropropargylene (5) and difluorocyclopropenylidene (6). The identification of the three new carbenes is based on the comparison of their experimental and calculated (MP2/6-31G*) infrared spectra.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19941270429
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  • 8
    Electronic Resource
    Electronic Resource
    Flash Pyrolysis of 1,1,1-Trimethyltetrasilane - Evidence for the Formation of Dibridged Si2H2 (1997)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 130 (1997), S. 1043-1046 
    Details
    ISSN: 0009-2940
    Keywords: Matrix isolation ; Ab initio calculations ; Oligosilanes ; Silicon atoms ; Reaction mechanisms ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Pulsed flash pyrolysis of 1,1,l-trimethyltetrasilane (5) led to trimethylsilane, silane and a further species which is believed to be dibridged Si2H2 (13). Another route to 13 was found in the cocondensation of hydrogen and silicon atoms in an argon matrix at 12 K. The identification of matrix-isolated 13 is based on observed IR bands at 1475.6, 1092.8 and 890.3 cm-1. These positions are in good agreement with the ab initio calculated wavenumbers for the strongest absorptions of 13. The band shifts for the mono- and dideuterated isotopomers support this assignment.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19971300804
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  • 9
    Electronic Resource
    Electronic Resource
    Hetero-π-Systeme, 17: Aminosilylen (Aminosilandiyl) (1989)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 122 (1989), S. 2403-2405 
    Details
    ISSN: 0009-2940
    Keywords: Hydrogen capture ; Matrix isolation ; Photochemistry ; Aminosilylene ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Hetero π-Systems, 17.  -  Aminosilylen (Aminosilanediyl)Aminosilylene can be prepared by 254-nm photolysis of silyl azide isolated in an argon matrix at 12 K. Subsequent irradiation with wavelengths 〉 300 nm yields silaisonitrile (3) and molecular hydrogen. This reaction may be reversed with 254-nm light.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19891221231
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  • 10
    Electronic Resource
    Electronic Resource
    Cyclische C6S6-Isomere  -  Matrixspektroskopische und theoretische Untersuchungen (1992)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 125 (1992), S. 265-269 
    Details
    ISSN: 0009-2940
    Keywords: Matrix isolation ; Photochemistry ; Flash vacuum pyrolysis ; Calculations, ab initio ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Cyclic C6S6 Isomers  -  Matrix-Spectroscopic and Theoretical InvestigationsA yellow C6S6 isomer, which can be interconverted photo-chemically into a colorless second C6S6 isomer, may be obtained upon matrix photolysis and flash pyrolysis of the precursor molecule 7. The structures of these isomers are most likely 3 and 5, as shown by comparison of their experimental with the calculated infrared spectra of the five possible cyclic C6S6 isomers 1 - 5.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19921250142
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