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Solvent-dependent luminescence of eight-coordinated Eu(III) complexes with bidentate phosphine oxide
| Title: | Solvent-dependent luminescence of eight-coordinated Eu(III) complexes with bidentate phosphine oxide |
| Authors: | Miyata, Kohei Browse this author | | Nakanishi, Takayuki Browse this author | | Fushimi, Koji Browse this author →KAKEN DB | | Hasegawa, Yasuchika Browse this author →KAKEN DB |
| Keywords: | Complex | | Eu(III) | | Luminescence | | Solvent effect |
| Issue Date: | 1-May-2012 |
| Publisher: | Elsevier B.V. |
| Journal Title: | Journal of Photochemistry and Photobiology A: Chemistry |
| Volume: | 235 |
| Start Page: | 35 |
| End Page: | 39 |
| Publisher DOI: | 10.1016/j.jphotochem.2012.03.005 |
| Abstract: | Solvent-dependent luminescence of Eu(III) complexes composed of oxo-linked bidentate phosphine oxide ligands, 4,5-bis(diphenylphosphoryl)-9,9-dimethylxanthene (xantpo), 4,5-bis(di-tert-butylphosphoryl)-9,9-dimethylxanthene (tBu-xantpo) and low-vibrational frequency hexafluoroacetylacetonato (hfa) ligands is reported. The Eu(III) complexes. Eu(hfa)2(xantpo)2 and Eu(hfa)3(tBu-xantpo), exhibit eight-coordinated square antiprism and trigonal dodecahedron structure, respectively. Their emission quantum yield, emission lifetime, and radiative and non-radiative rate constant are characterized using acetone, acetone-d6, toluene, chloroform, and DMF. The relationship between photophysical properties and coordination structures of eight-coordinated Eu(III) complexes is discussed for the first time. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/49283 |
| 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)
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Submitter: 長谷川 靖哉
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