Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
A curious interplay in the films of N-heterocyclic carbene Pt-II complexes upon deposition of alkali metals. / Makarova, Anna A.; Grachova, Elena V.; Niedzialek, Dorota; Solomatina, Anastasia I.; Sonntag, Simon; Fedorov, Alexander V.; Vilkov, Oleg Yu.; Neudachina, Vera S.; Laubschat, Clemens; Tunik, Sergey P.; Vyalikh, Denis V.
в: Scientific Reports, Том 6, № 25548, 25548, 06.05.2016.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - A curious interplay in the films of N-heterocyclic carbene Pt-II complexes upon deposition of alkali metals
AU - Makarova, Anna A.
AU - Grachova, Elena V.
AU - Niedzialek, Dorota
AU - Solomatina, Anastasia I.
AU - Sonntag, Simon
AU - Fedorov, Alexander V.
AU - Vilkov, Oleg Yu.
AU - Neudachina, Vera S.
AU - Laubschat, Clemens
AU - Tunik, Sergey P.
AU - Vyalikh, Denis V.
PY - 2016/5/6
Y1 - 2016/5/6
N2 - The recently synthesized series of Pt-II complexes containing cyclometallating (phenylpyridine or benzoquinoline) and N-heterocyclic carbene ligands possess intriguing structures, topologies, and light emitting properties. Here, we report curious physicochemical interactions between in situ PVD-grown films of a typical representative of the aforementioned Pt-II complex compounds and Li, Na, K and Cs atoms. Based on a combination of detailed core-level photoelectron spectroscopy and quantum-chemical calculations at the density functional theory level, we found that the deposition of alkali atoms onto the molecular film leads to unusual redistribution of electron density: essential modification of nitrogen sites, reduction of the coordination Pt-II centre to Pt-0 and decrease of electron density on the bromine atoms. A possible explanation for this is formation of a supramolecular system "Pt complex-alkali metal ion"; the latter is supported by restoration of the system to the initial state upon subsequent oxygen treatment. The discovered properties highlight a considerable potential of the Pt-II complexes for a variety of biomedical, sensing, chemical, and electronic applications.
AB - The recently synthesized series of Pt-II complexes containing cyclometallating (phenylpyridine or benzoquinoline) and N-heterocyclic carbene ligands possess intriguing structures, topologies, and light emitting properties. Here, we report curious physicochemical interactions between in situ PVD-grown films of a typical representative of the aforementioned Pt-II complex compounds and Li, Na, K and Cs atoms. Based on a combination of detailed core-level photoelectron spectroscopy and quantum-chemical calculations at the density functional theory level, we found that the deposition of alkali atoms onto the molecular film leads to unusual redistribution of electron density: essential modification of nitrogen sites, reduction of the coordination Pt-II centre to Pt-0 and decrease of electron density on the bromine atoms. A possible explanation for this is formation of a supramolecular system "Pt complex-alkali metal ion"; the latter is supported by restoration of the system to the initial state upon subsequent oxygen treatment. The discovered properties highlight a considerable potential of the Pt-II complexes for a variety of biomedical, sensing, chemical, and electronic applications.
KW - COPPER-PHTHALOCYANINE CUPC
KW - ENERGY-LEVEL SHIFT
KW - ELECTRONIC-STRUCTURE
KW - TRIS(8-HYDROXYQUINOLINE) ALUMINUM
KW - INTERFACES
KW - ABSORPTION
KW - CHEMISTRY
KW - TRANSPORT
KW - DEVICES
KW - STATES
U2 - 10.1038/srep25548
DO - 10.1038/srep25548
M3 - статья
VL - 6
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
IS - 25548
M1 - 25548
ER -
ID: 7564045