Dependence of the photophysical properties on the number of 2,2'-bipyridine units in a series of luminescent europium and terbium cryptates.
The luminescence properties of a series of lanthanoid cryptates with an increasing number of 2,2'-bipyridine units have been investigated for the lanthanoids Eu and Tb in aqueous solution. The trends in important parameters that influence the photophysics in these complexes have been determined. With increasing bipyridine content, an increase is observed for the intersystem crossing efficiencies and the number of inner-sphere water molecules. In contrast, a decrease is found in the same direction for overall quantum yields, triplet energies, and sensitization efficiencies.
Inorganic Chemistry I, Department of Chemistry and Biochemistry, Ruhr-University Bochum, 44780 Bochum, Germany.
Nicola
N
Alzakhem
Caroline
C
Bischof
Michael
M
Seitz
D015082:2,2'-Dipyridyl / Q000737:chemistry*; D018360:Crystallography, X-Ray; D049408:Luminescent Agents / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D009942:Organometallic Compounds / Q000737:chemistry*; D013725:Terbium / Q000737:chemistry*
D049408:Luminescent Agents; D009942:Organometallic Compounds; D013725:Terbium; C070734:europium(III) trisbipyridine cryptate; D015082:2,2'-Dipyridyl