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  • 1
    Digitale Medien
    Digitale Medien
    Investigation of interactions between chloroderivatives of alkanes and alkenes and chemically bonded transition metal complexes by gas chromatography (1987)
    Springer
    Chromatographia 23 (1987), S. 261-264 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; Chemically bonded phases ; Specific interactions ; Chloroderivatives of alkanes and alkenes
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary Interactions of Cu(II) complexes chemically bonded to the surface of silica with chloro-derivatives of alkanes and alkenes were investigated. It was found that chlorine as a substituent exerts a considerable influence on the retention of the individual chloro-derivatives. In the case of chloroalkenes this influence is negative while in the case of chloroalkanes it is positive. The magnitude of the observed effect depends on the number of substituents and on the way of their distribution within the molecule.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02311776
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    GC investigation of olefins with chemically bonded gamma-mercaptopropylsilane-copper(II) complexes (1987)
    Springer
    Chromatographia 23 (1987), S. 423-426 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; Complexation ; Mercaptosilane chemically bonded phase ; Transition metal complexes ; Olefinic π-complexes
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary A column packing containing thiol groups chemically bonded to the silica surface was synthesized. The thiol functional groups were used as ligands capable of forming stable complexes with Cu(II). The prepared material was characterized by gas chromatography using unsaturated linear and branched hydrocarbons as well as cyclic and aromatic hydrocarbons. The occurrence of specific metal—olefin interactions resulting from the formation of π-complexes during the chromatographic process was observed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02311818
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Investigation of the interaction of olefin-bonded transition metal complexes by gas chromatography. II. Phosphine complexes of Cu(II) (1986)
    Springer
    Chromatographia 22 (1986), S. 147-152 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; Metal complexes ; Chemically bonded phase ; Specific interactions
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary Packings consisting of chemically bonded diphenylphosphine complexes with CuCl2 and CuBr2 were synthesized and their retention parameters determined. The packings investigated are capable of specific interactions with electron-donating compounds and are characterized by particularly high selectivity in relation to cis and trans isomers allowing their complete separation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02257316
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Investigation of specific interaction between olefins and cyano-silica modified with copper(II) complexes (1987)
    Springer
    Chromatographia 23 (1987), S. 427-431 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Complexation gas chromatography ; Chemically bonded phase ; Transition metal complexes ; Cyano-silica
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary Silica gel packings containing copper salt bonded to cyano functional groups on the surface of silica particles were synthesized. It was found that such packings are capable of specific interactions with olefins. The interactions were diversified enough to allow the separation of geometrical isomers. Moreover, it was found that, because of the character of the cyano group, the differences between the packing with free −CN groups and the packing containing −CN groups bonded into a complex with Cu(II) were less marked than in the case of diphenylphosphine and thiol groups investigated earlier.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02311819
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