Efficient microwave synthesis of luminescent europium(III) complexes with polypyridine and the study of electrospectrochemistry

被引：0

作者：

Masuda, Yoshitaka ^{[1
]}

Wada, Schuichi ^{[2
]}

Nakamura, Tatuto ^{[2
]}

Matsumura-Inoue, Takeko ^{[3
]}

机构：

[1] College of Analytical Chemistry, 2-18 Tenma, Osaka 530-0043, Japan

[2] Nara University of Education, Takabatake, Nara-shi 630-8528, Japan

[3] Minerva Light Laboratory, L.L.C., Keihannaplaza, 1-7 Hikaridai, Seika, Souraku, Kyoto 619-0237, Japan

来源：

Journal of Alloys and Compounds | 1600年 / 408-412卷

关键词：

We have developed an efficient synthetic method of photosensitive Eu(III)-polypyridine complexes; assisted with microwave irradiation. We succeeded in obtaining pure complexes in a shorter time with a 70% or more yield by reflux synthesis in ethyleneglycol under microwave irradiation and report their physicochemical properties. The results of the absorption spectra of the complexes in ethyleneglycol solution are obtained. All the Eu(III) complexes exhibit a very strong spectral absorption at 397 and 664 nm. These bands are attributed to intraligand π &rarr π* transition and n &rarr π* charge transfer transition. A general feature in the spectra of Eu(III) ion is a shift of absorption bands toward lower energy on complex formation. Nephelauxetic effect; β. We calculated the values of β; b1/2 (measure of covalent); and δ% (Sinha's parameter) of Eu(III)-polypyridine complexes. The values of b1/2 was in the ligand order: (pyre) > (tpy) > (bpyca)>(biq); (dmbpy) > (bpy). The fluorescent intensity of Eu(III) complex with bpyca ligand was strong enhanced by about 7.56 times when compared with that of Eu(III) ion; and for strong Eu(III) complex with tpy ligand it was enhanced by about 30 times. The dominant fluorescent transition of intramolecular energy transfer (IMET) process takes place from chelate absorption band state in Eu(III)-polypyridine to the J manifold of 7F; which is a spin forbidden type and the role of the triplet state is enormously important. The formula of Nicolson-Shain was used for the analysis of an electrode reaction parameter. From the analytic results of C-V; the transfer coefficient (α); the diffusion coefficient (D; cm2/s); the standard rate constants; k0f (cm/s) of the electrode reaction for Eu(III) complexes with polypyridine were obtained. And the formation constants (Kf) were also discussed. © 2005 Elsevier B.V. All rights reserved;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Conference article (CA)

引用

下载

页码：1017 / 1021

共 50 条

[31] Minocycline-Based Europium(III) Chelate Complexes: Synthesis, Luminescent Properties, and Labeling to Streptavidin
Nishioka, Takuya
Yamamoto, Yuji
Hashino, Kimikazu
Matsumoto, Kazuko
HELVETICA CHIMICA ACTA, 2009, 92 (11) : 2357 - 2374
[32] The synthesis and characterization of novel luminescent europium(III) complexes with mixed ligand of HTTA and cryptand[2.2]
Yu, J
Xu, ZH
Xu, GX
Han, M
ACTA CHIMICA SINICA, 1997, 55 (02) : 153 - 159
[33] Synthesis, photo- and electro-luminescent properties of novel ternary europium(III) complexes
Du, CX
Wang, ZQ
Xin, Q
Wu, YJ
Li, WL
ACTA CHIMICA SINICA, 2004, 62 (22) : 2265 - 2269
[34] Synthesis and luminescent properties of europium (III) schiff base complexes covalently bonded to silica xerogels
Luo, Yan
Han, Yinhua
Lin, Jun
JOURNAL OF LUMINESCENCE, 2007, 122 (1-2) : 83 - 86
[35] Synthesis and Luminescent properties of europium chloride with DPA Complexes
Chang, Zhiming
Zhang, Fujun
FRONTIERS OF ADVANCED MATERIALS AND ENGINEERING TECHNOLOGY, PTS 1-3, 2012, 430-432 : 164 - 167
[36] Synthesis and luminescence studies of aryl substituted tetraamide complexes of europium(III): A new approach to pH responsive luminescent europium probes
Woods, M
Sherry, AD
INORGANIC CHEMISTRY, 2003, 42 (14) : 4401 - 4408
[37] Rapid synthesis of new emitting Ir(III) polypyridine complexes
Yoshikawa, N
Masuda, Y
Matsumura-Inoue, T
CHEMISTRY LETTERS, 2000, (10) : 1206 - 1207
[38] Luminescent biomolecular and cellular probes derived from cyclometalated iridium(III) polypyridine complexes
Lo, Kenneth Kam-Wing
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2011, 242
[39] Effect of Coordination Environment on the Photophysical Properties of Luminescent Europium(III) Complexes
Baek, Nam Seob
Kim, Yong Hee
Lee, Dong Hyun
Seo, Kang Deuk
Kim, Hwan Kyu
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, 2009, 30 (07): : 1553 - 1558
[40] Synthesis and properties of nanospheres copolymerised with luminescent europium(III) chelates
Hakala, H
Mukkala, VM
Sutela, T
Hovinen, J
ORGANIC & BIOMOLECULAR CHEMISTRY, 2006, 4 (07) : 1383 - 1386

← 1 2 3 4 5 →