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  • Your search results: "Petkov, Ivan K"
Showing 1 - 10 results of 10 for search '"Petkov, Ivan K"', query time: 0.81s Narrow search
  • 1
    Cover Image Journal Article
    The luminescence response of Eu(III)-thenoyltrifluoroacetonate complexes upon preresonant excitation with femtosecond laser pulses
    by Hadjichristov, Georgi B   Stefanov, Ivan L   Stanimirov, Stanislav S   Petkov, Ivan K Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (2010)
    “...The luminescence of thenoyltrifluoroacetonate (TTA) coordination complexes of trivalent europium ion (Eu(III)) in aqueous solutions and in solid-state...”
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  • 2
    Cover Image Conference Proceeding
    Femtosecond laser spectroscopy of europium complexes in solutions
    by Hadjichristov, Georgi B   Stefanov, Ivan L   Stanimirov, Stanislav S   Petkov, Ivan K Published in Proceedings of SPIE (02.10.2009)
    “...The luminescence response of a new coordination complex of europium Eu(III) ion, namely tris[4,4,4-trifluoro-1-(2-thienyl)-1,3-butanediono]Eu(III)...”
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  • 3
    Cover Image Journal Article
    Novel pH responsive luminescent poly(oxyethylene phosphate) tris(β-diketonate) europium (III) complexes
    by Stanimirov, Stanislav S   Petkov, Ivan K Published in Central European journal of chemistry (01.09.2008)
    “...The paper reports on the dependence of the absorbance and luminescent intensity from pH of novel poly(oxyethylene phosphate) tris(β-diketonate) europium (III)...”
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  • 4
    Cover Image Journal Article
    Novel pH responsive luminescent poly(oxyethylene phosphate) tris complexes
    by Stanimirov, Stanislav S   Petkov, Ivan K Published in Central European Journal of Chemistry (01.09.2008)
    “...The paper reports on the dependence of the absorbance and luminescent intensity from pH of novel poly(oxyethylene phosphate) tris([beta]-diketonate) europium...”
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  • 5
    Cover Image Journal Article
    IR-spectral study of photoinduced tautomerization in 1,3-diphenyl-pyrazol-5-one
    by Ivanova, Bojidarka B   Tchapkanov, Atanas G   Arnaudov, Michail G   Petkov, Ivan K Published in Central European journal of chemistry (01.12.2003)
    “...The UV-photoinduced prototropic isomerization of 1,3-diphenyl pyrazol-5-one (DPhP) embedded in polyvinyl chloride (PVC) film is studied by means of difference...”
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  • 6
    Cover Image Journal Article
    On the tautomerism of 1-phenyl-3-substituted-pyrazol-5-ones and their photoinduced products — experimental and theoretical UV spectral analysis
    by Chapkanov, Atanas G   Koleva, Bojidarka B   Arnaudov, Michail G   Petkov, Ivan K Published in Chemical papers (01.06.2008)
    “...A detailed experimental and theoretical UV-spectral analysis of the tautomeric forms of 3-methyl-1-phenyl pyrazol-5-one and 1,3-diphenyl pyrazol-5-one as well...”
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  • 7
    Cover Image Patent
    DERIVATIVES OF DIIMIDES OF PERILENE- 3, 4, 9, 10- TETRACARBONIC ACID AND METHOD FOR THEIR MANUFACTURE
    4
    by CANEVA,DAFINKA A   PETKOV,IVAN K   DELIGEORGIEV,TODOR G
    15.12.1987
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  • 8
    Cover Image Patent
    DIIMIDES OF PERILENE- 3, 4, 9, 10- TETRACARBONIC ACID AND METHOD FOR THEIR MANUFACTURE
    4
    by CANEVA,DAFINKA A   PETKOV,IVAN K   DELIGEORGIEV,TODOR G
    15.12.1987
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  • 9
    Cover Image Patent
    SYSTEM FOR BLOOD COLLECTION AND REINFUSION FROM A SURGICAL WOUND
    5
    by PETKOV, IVAN KH
    15.09.1993
    “...The system is applied in medicine. It allows to save a maximum quantity of autologic blood and to retain its sufficiency for direct reinfusion, which waives...”
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  • 10
    Cover Image Patent
    PHOTO PROTECTIVE MEANS
    3
    by MANEV,GEORGI S   PETKOV,IVAN K   RUMJAN, KRISTIAN A   MARKOV,PETR J
    15.11.1982
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