Reversible recruitment and emission of DO3A-derived lanthanide complexes at ligating molecular films on gold

Lehr, J; Bennett, J; Tropiano, M; Sørensen, TJ; Faulkner, S; Beer, PD; Davis, JJ

Abstract

The recruitment of DO3A-derived lanthanide complexes by ligation to isophthalic acid and catechol-modified gold surfaces, and their resulting sensitization, is reported herein. Predictably pH-dependent surface recruitment is associated with the expected fingerprint europium and terbium emission characteristics. The intensity of the lanthanide luminescence scales exponentially with spacer length, indicating a strong quenching interaction between the lanthanide and the gold surface. The switchable catechol oxidation state provides a means of electrochemically triggering the release of prior ligated complexes.

Citation

Lehr, J., Bennett, J., Tropiano, M., Sørensen, T., Faulkner, S., Beer, P., & Davis, J. (2013). Reversible recruitment and emission of DO3A-derived lanthanide complexes at ligating molecular films on gold. Langmuir, 29(5), 1475-1482. https://doi.org/10.1021/la3046725

• Journal Article Type: Article
• Online Publication Date: Jan 25, 2013
• Publication Date: Feb 5, 2013
• Deposit Date: Aug 11, 2021
• Journal: Langmuir
• Print ISSN: 0743-7463
• Electronic ISSN: 1520-5827
• Publisher: American Chemical Society
• Volume: 29
• Issue: 5
• Pages: 1475-1482
• DOI: https://doi.org/10.1021/la3046725
• Publisher URL: https://doi.org/10.1021/la3046725
• Related Public URLs: https://pubs.acs.org/journal/langd5