open access

https://hdl.handle.net/2115/97769

The conformational arrangement effect of luminescent Eu(III) coordination polymers with phenylene diamide units on structural and photophysical properties

英語

luminescent

2025-04-25

Oxford University Press

Bulletin of the chemical society of Japan

98(4)

uoaf026

Luminescent Eu(III) coordination polymers with phosphine oxide linker ligands that contain phenylenediamide units [Eu(hfa)3p-dpba]n, [Eu(hfa)3dppt]n, and [Eu(hfa)3dppb]n (hfa: hexafluoroacetylacetonate, p-dpba: N,N '-(1,4-phenylene)bis(4-(diphenylphosphoryl)benzamide, dppt: N1,N4-bis(4-(diphenylphosphoryl)phenyl)terephthalamide, dppb: 4-(diphenylphosphoryl)-N-(4-((4-(diphenylphosphoryl)phenyl)carbamoyl)phenyl)benzamide) were reported. The structural and photophysical properties of the Eu(III) coordination polymers were evaluated. The phase-transition temperatures of [Eu(hfa)3p-dpba]n, [Eu(hfa)3dppt]n, and [Eu(hfa)3dppb]n were determined to be 153, 148, and 79 degrees C, respectively. The overall emission quantum yield (Phi pi pi*) and photosensitized efficiency (eta sens) excitation of [Eu(hfa)3dppt]n (Phi pi pi* = 19%, eta sens = 43%) and [Eu(hfa)3dppb]n (Phi pi pi* = 19%, eta sens = 37%) under 370 nm of excitation were found to be larger than those of [Eu(hfa)3p-dpba]n (Phi pi pi* = 4.4%, eta sens = 6.8%). We demonstrate systematic evaluation of the structural and photophysical properties of the amide units.

学術雑誌論文

Accepted Manuscript

This is a pre-copyedited, author-produced version of an article accepted for publication in Bulletin of the Chemical Society of Japan following peer review. The version of record Joe Hayashi, Mengfei Wang, Yuichi Kitagawa, Yasuchika Hasegawa, The conformational arrangement effect of luminescent Eu(III) coordination polymers with phenylene diamide units on structural and photophysical properties, Bulletin of the Chemical Society of Japan, Volume 98, Issue 4, April 2025, uoaf026 is available online at: https://doi.org/10.1093/bulcsj/uoaf026.

0009-2673