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Photochemistry of (Z)-isovinylneoxanthobilirubic acid methyl ester, a bilirubin dipyrrinone subunit: femtosecond transient absorption and stimulated Raman emission spectroscopy

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00568051" target="_blank" >RIV/68378271:_____/22:00568051 - isvavai.cz</a>

  • Alternative codes found

    RIV/00064165:_____/22:10444111 RIV/60076658:12310/22:43904994 RIV/00216208:11110/22:10444111 RIV/00216224:14310/22:00126178

  • Result on the web

    <a href="https://doi.org/10.1021/acs.joc.1c02870" target="_blank" >https://doi.org/10.1021/acs.joc.1c02870</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1021/acs.joc.1c02870" target="_blank" >10.1021/acs.joc.1c02870</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Photochemistry of (Z)-isovinylneoxanthobilirubic acid methyl ester, a bilirubin dipyrrinone subunit: femtosecond transient absorption and stimulated Raman emission spectroscopy

  • Original language description

    Bilirubin (BR) is an essential metabolite formed by the catabolism of heme. Phototherapy with blue-green light can be applied to reduce high concentrations of BR in blood and is used especially in the neonatal period. In this work, we studied the photochemistry of (Z)-isovinylneoxanthobilirubic acid methyl ester, a dipyrrinone subunit of BR, by steady-state absorption, femtosecond transient absorption, and stimulated Raman spectroscopies. Both the (Z)- and (E)-configurational isomers of isovinylneoxanthobilirubic acid undergo wavelength-dependent and reversible photoisomerization. The isomerization from the excited singlet state is ultrafast (the lifetimes of (Z)- and (E)- isomers were found to be ∼0.9 and 0.1 ps, respectively), and its efficiencies increase with increased photon energy. In addition, we studied sensitized photooxidation of the dipyrrinone subunit by singlet oxygen that leads to the formation of propentdyopents.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10303 - Particles and field physics

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2022

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Organic Chemistry

  • ISSN

    0022-3263

  • e-ISSN

    1520-6904

  • Volume of the periodical

    87

  • Issue of the periodical within the volume

    5

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    15

  • Pages from-to

    3089-3103

  • UT code for WoS article

    000773458100083

  • EID of the result in the Scopus database

    2-s2.0-85124902544