Luminescent phosphine ruthenium(II) complexes with 8-hydroxyquinoline derivative ligands
PBN-AR
Instytucja
Wydział Matematyki, Fizyki i Chemii (Uniwersytet Śląski w Katowicach)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
JOURNAL OF LUMINESCENCE
ISSN
0022-2313
EISSN
Wydawca
ELSEVIER SCIENCE BV
DOI
URL
Rok publikacji
2016
Numer zeszytu
Part B
Strony od-do
765-772
Numer tomu
169
Identyfikator DOI
Liczba arkuszy
0,4
Słowa kluczowe
EN
DFT calculation
Fluorescence resonance energy transfer (FRET)
Luminescence
Quinoline derivative ligands
Ruthenium(II) complexes
X-ray crystallography
Streszczenia
Język
EN
Treść
Ruthenium(II) complexes with formulas [RuH(CO)(PPh3)2(L)] (where L=5-chloro-8-hydroxy-2-methylquinoline-7-carboxylic acid (L1), 8-hydroxy-2,5-dimethylquinoline-7-carboxylic acid (L2), 2-methyl-8-quinolinol (L3) and 8-hydroxy-2-methyl-5,7-dinitroquinoline (L4)) were synthesized from precursor complex [RuHCl(CO)(PPh3)3] and characterized by IR, NMR, UV–vis spectroscopy and X-ray crystallography. The emission properties of the complexes were studied in solutions and solid state at ambient temperature. The quantum yields of fluorescence, the lifetimes and the nature of excited states were described on the basis of molecular properties. To elucidate the structural, spectroscopic and bonding properties of the obtained complexes, calculations at the DFT level were undertaken. The complexes display green to yellow–orange emission depending mostly on the impact of substituents of the quinoline moiety. The emission spectra of the ligands were prepared in order to discuss fluorescence resonance energy transfer (FRET) between the metal center and the ligands. Excitation spectra of the complexes display a good agreement with the emission bands of the ligands. Thus, the ligand centered (LC) excited state, which interacts with metal to ligand charge transfer (MLCT) excited state plays a role in emission of complexes. Comparing to the ligands, decreasing of decay times and quantum yields in the received complexes are visible, which is connected with efficient non-radiative decay from the 3MLCT states in the complexes.
Inne
System-identifier
0192600120127
CrossrefMetadata from Crossref logo
Cytowania
Liczba prac cytujących tę pracę
Brak danych
Referencje
Liczba prac cytowanych przez tę pracę
Brak danych