Strong Circularly Polarized Luminescence from Highly Emissive Terbium Complexes in Aqueous Solution
Journal Article
·
· European Journal of Inorganic Chemistry
Two luminescent terbium(III) complexes have been prepared from chiral ligands containing 2-hydroxyisophthalamide (IAM) antenna chromophores and their non-polarized and circularly-polarized luminescence properties have been studied. These tetradentate ligands, which form 2:1 ligand/Tb{sup III} complexes, utilize diaminocyclohexane (cyLI) and diphenylethylenediamine (dpenLI) backbones, which we reasoned would impart conformational rigidity and result in Tb{sup III} complexes that display both large luminescence quantum yield ({phi}) values and strong circularly polarized luminescence (CPL) activities. Both Tb{sup III} complexes are highly emissive, with {phi} values of 0.32 (dpenLI-Tb) and 0.60 (cyLI-Tb). Luminescence lifetime measurements in H{sub 2}O and D{sub 2}O indicate that while cyLI-Tb exists as a single species in solution, dpenLI-Tb exists as two species: a monohydrate complex with one H{sub 2}O molecule directly bound to the Tb{sup III} ion and a complex with no water molecules in the inner coordination sphere. Both cyLI-Tb and dpenLI-Tb display increased CPL activity compared to previously reported Tb{sup III} complexes made with chiral IAM ligands. The CPL measurements also provide additional confirmation of the presence of a single emissive species in solution in the case of cyLI-Tb, and multiple emissive species in the case of dpenLI-Tb.
- Research Organization:
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
- Sponsoring Organization:
- Chemical Sciences Division
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1000052
- Report Number(s):
- LBNL-4045E
- Journal Information:
- European Journal of Inorganic Chemistry, Journal Name: European Journal of Inorganic Chemistry Journal Issue: 21 Vol. 2010; ISSN 1099-0682; ISSN 1434-1948
- Country of Publication:
- United States
- Language:
- English
Similar Records
Circularly Polarized Luminescence in Enantiopure Europium and Terbium Complexes with Modular, All-Oxygen Donor Ligands
Brilliant Sm, Eu, Tb and Dy chiral lanthanide complexes withstrong circularly polarized luminescence
Crown ether-lanthanide complexes studied by CPL and TL. I. Solution stoichiometry of europium and terbium nitrate complexes of (2r,3r,11r,12r)-2,3,11,12-tetramethyl-18-crown-6
Journal Article
·
Thu Jun 04 00:00:00 EDT 2009
· Inorganic Chemistry
·
OSTI ID:984307
Brilliant Sm, Eu, Tb and Dy chiral lanthanide complexes withstrong circularly polarized luminescence
Journal Article
·
Mon Jul 10 00:00:00 EDT 2006
· Journal of the American Chemical Society
·
OSTI ID:923411
Crown ether-lanthanide complexes studied by CPL and TL. I. Solution stoichiometry of europium and terbium nitrate complexes of (2r,3r,11r,12r)-2,3,11,12-tetramethyl-18-crown-6
Technical Report
·
Mon Dec 31 23:00:00 EST 1984
·
OSTI ID:6207288