Co-Ligand Involvement in Ground and Excited States of Electron-Rich (Polypyridyl)Pt' Complexes.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F03%3A54030061" target="_blank" >RIV/61388955:_____/03:54030061 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Co-Ligand Involvement in Ground and Excited States of Electron-Rich (Polypyridyl)Pt' Complexes.

Popis výsledku v původním jazyce

The electronic absorption and luminescence properties of electron-rich organometallic platinum(II) complexes with aromatic .alpha.-diimine ligands [(.alpha.-diimine)PtR2] (R = alkyl, alkynyl, Ph or Mes, Mes = 2,4,6-trimethylphenyl) were examined. The crystal and molecular structures of [(bpy)PtMe2], [(tap)PtPh2] and [(tmphen)PtMes2] were determined from single-crystal XRD and discussed in view of intermolecular interactions that influence the emission behaviour. The combination of theoretical calculations (DFT) and spectroscopic techniques (absorption and emission) revealed the character of electronic transitions and excited states. In particular they showed that the co-ligand involvement in the frontier orbitals is small for R = Me, but large in caseof R = alkynyl, Ph or Mes. Depending on the chelate ligand and its substitution pattern, the emission efficiencies of the complexes cover a wide range from strong emission in fluid solution at ambient temperature.

Název v anglickém jazyce

Co-Ligand Involvement in Ground and Excited States of Electron-Rich (Polypyridyl)Pt' Complexes.

Popis výsledku anglicky

The electronic absorption and luminescence properties of electron-rich organometallic platinum(II) complexes with aromatic .alpha.-diimine ligands [(.alpha.-diimine)PtR2] (R = alkyl, alkynyl, Ph or Mes, Mes = 2,4,6-trimethylphenyl) were examined. The crystal and molecular structures of [(bpy)PtMe2], [(tap)PtPh2] and [(tmphen)PtMes2] were determined from single-crystal XRD and discussed in view of intermolecular interactions that influence the emission behaviour. The combination of theoretical calculations (DFT) and spectroscopic techniques (absorption and emission) revealed the character of electronic transitions and excited states. In particular they showed that the co-ligand involvement in the frontier orbitals is small for R = Me, but large in caseof R = alkynyl, Ph or Mes. Depending on the chelate ligand and its substitution pattern, the emission efficiencies of the complexes cover a wide range from strong emission in fluid solution at ambient temperature.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

European Journal of Inorganic Chemistry

ISSN

1434-1948

e-ISSN

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Svazek periodika

N/A

Číslo periodika v rámci svazku

N/A

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

12

Strana od-do

1917-1928

Kód UT WoS článku

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EID výsledku v databázi Scopus

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