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Zeitschrift für Naturforschung B

A Journal of Chemical Sciences

IMPACT FACTOR 2018: 0.961

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Volume 74, Issue 2


Synthesis, crystal structure, photoluminescence and photochemistry of bis(triphenylphosphine)silver(I) flavonolate

Arnd Vogler
  • Corresponding author
  • Institute of Inorganic Chemistry, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
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/ Birgit Hischa
  • X-ray Central Analytics, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
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Published Online: 2018-12-03 | DOI: https://doi.org/10.1515/znb-2018-0162


The complex Ag(I)(flavonolate)(PPh3)2 has been prepared and characterized including the crystal structure. This compound shows in degassed solution two emission bands, a fluorescence at λmax=505 nm and a phosphorescence at λmax=780 nm. Both emissions originate from lowest-energy flavonolate intraligand excited singlet and triplet states, respectively. In the presence of oxygen, the phosphorescence disappears and the complex becomes light-sensitive. The flavonolate ligand undergoes a photooxidation by oxygen.

Keywords: crystal structure; flavonolate; photochemistry; photoluminescence; silver(I)


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About the article

Received: 2018-08-01

Accepted: 2018-10-15

Published Online: 2018-12-03

Published in Print: 2019-02-25

Citation Information: Zeitschrift für Naturforschung B, Volume 74, Issue 2, Pages 171–174, ISSN (Online) 1865-7117, ISSN (Print) 0932-0776, DOI: https://doi.org/10.1515/znb-2018-0162.

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