Kruck C, Nazari P, Dee C, Richards BS, Turshatov A, Seitz M. Efficient Ytterbium Near-Infrared Luminophore Based on a Nondeuterated Ligand.
Inorg Chem 2019;
58:6959-6965. [PMID:
31050288 DOI:
10.1021/acs.inorgchem.9b00548]
[Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel molecular ytterbium complex is reported with a new tetradentate ligand based on the 2,2'-bipyridine-6,6'-dicarboxylic acid scaffold. The photophysical properties are investigated, especially with respect to near-infrared luminescence. The ytterbium complex shows a rather high absolute luminescence quantum yield of Φ = 3.0% and a luminescence lifetime of τobs = 72 μs at room temperature in CD3OD solution.
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