Journal article
Manifestation of pi-pi Stacking Interactions in Luminescence Properties and Energy Transfer in Aromatically-Derived Tb, Eu and Gd Tris(pyrazolyl)borate Complexes
Inorganic chemistry, v 54(7), pp 3125-3133
06 Apr 2015
PMID: 25797500
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The three new complexes Tp(Py)Ln(CH3CO2)(2)(H2O) (Ln = Eu (1), Gd(2), or Tb (3)) were prepared and characterized crystallographically. In the crystal lattices of these complexes, separate molecules are connected in infinite chains by pi-stacking interactions. Complexes 1 and 3 display intense photoluminescence and triboluminescence (red and green respectively), while compound 3 exhibits electroluminescence commencing at 9 V in an ITO/PVK/3/Al device (ITO = indium-tin oxide, PVK = poly(N-vinylcarbazole)). A series of Eu/Tb-doped Gd compounds was prepared by cocrystallization from mixtures of 1 and 2 or 2 and 3, respectively. It was shown that p-stacking interactions are involved in increasing the efficiency of energy transfer from the gadolinium complex to emitting [Tp(Py)Eu](2+) or [Tp(Py)Tb](2+) centers, and this energy transfer occurs through hundreds of molecules, resembling the process of energy harvesting in chloroplast stacks.
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Details
- Title
- Manifestation of pi-pi Stacking Interactions in Luminescence Properties and Energy Transfer in Aromatically-Derived Tb, Eu and Gd Tris(pyrazolyl)borate Complexes
- Creators
- Elena A. Mikhalyova - L.V. Pisarzhevskii Institute of Physical ChemistryAnastasiya V. Yakovenko - L.V. Pisarzhevskii Institute of Physical ChemistryMatthias Zeller - Youngstown State UniversityMikhail A. Kiskin - N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prosp. 31, 119991 Moscow, GSP-1, Russian FederationYuriy V. Kolomzarov - National Academy of Sciences of UkraineIgor L. Eremenko - N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prosp. 31, 119991 Moscow, GSP-1, Russian FederationAnthony W. Addison - Drexel UniversityVitaly V. Pavlishchuk - L.V. Pisarzhevskii Institute of Physical Chemistry
- Publication Details
- Inorganic chemistry, v 54(7), pp 3125-3133
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 9
- Grant note
- National Academy of Sciences of Ukraine Youngstown State University 0087210 / NSF; National Science Foundation (NSF) 03-03-14; 14-03-90423 / Russian Foundation for Basic Research; Russian Foundation for Basic Research (RFBR) College of Arts & Sciences of Drexel University CAP-491 / Ohio Board of Regents
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemistry
- Web of Science ID
- WOS:000352518600010
- Scopus ID
- 2-s2.0-84926512945
- Other Identifier
- 991019168117104721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Inorganic & Nuclear