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A Luminescent Dinuclear Eu-III/Tb-III Complex with LMCT Band as a Single-Molecular Thermosensor

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/72488

Title: A Luminescent Dinuclear Eu-III/Tb-III Complex with LMCT Band as a Single-Molecular Thermosensor
Authors: Yanagisawa, Kei Browse this author
Kitagawa, Yuichi Browse this author
Nakanishi, Takayuki Browse this author
Seki, Tomohiro Browse this author
Fushimi, Koji Browse this author
Ito, Hajime Browse this author
Hasegawa, Yasuchika Browse this author →KAKEN DB
Keywords: charge transfer
lanthanides
luminescence
O ligands
sensors
Issue Date: 6-Feb-2018
Publisher: Wiley-Blackwell
Journal Title: Chemistry-A European journal
Volume: 24
Issue: 8
Start Page: 1956
End Page: 1961
Publisher DOI: 10.1002/chem.201705021
PMID: 29205572
Abstract: Temperature-dependent luminescence of a dinuclear Eu-III/Tb-III complex with a seven-coordinate structure is demonstrated. The dinuclear complex is composed of two lanthanide ions, six tetramethylheptanedionate ligands, and a bidentate phosphine oxide linker ligand. The dinuclear structure of the complex was characterized by single-crystal XRD. Intrinsic 4f-4f emission quantum yields of the dinuclear Eu-III and Tb-III complexes were 66 and 61%, respectively. The luminescence color of the dinuclear Eu-III/Tb-III complex changed from red to green with increasing temperature. The thermosensing range based on the ratio of luminescence intensity (A(Eu)/A(Tb)) was 100-450K. The temperature-dependent luminescence is due to the presence of a ligand-to-metal charge-transfer state.
Rights: This is the peer reviewed version of the following article: Kei Yanagisawa et al., A Luminescent Dinuclear Eu-III/Tb-III Complex with LMCT Band as a Single-Molecular Thermosensor, Chemistry - A European Journal, 24(8), p.1956-1961, 2018, which has been published in final form at http://doi.org/10.1002/chem.201705021. This article may be used for non-commercial purposes in accordance With Wiley-VCH Terms and Conditions for Self-archiving.
Type: article (author version)
URI: http://hdl.handle.net/2115/72488
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 長谷川 靖哉

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