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Zhang T, Kitagawa Y, Moriake R, Ferreira da Rosa PP, Islam MJ, Yoneda T, Inokuma Y, Fushimi K, Hasegawa Y. Hybrid Eu III Coordination Luminophore Standing on Two Legs on Silica Nanoparticles for Enhanced Luminescence. Chemistry 2021; 27:14438-14443. [PMID: 34409670 DOI: 10.1002/chem.202102156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Indexed: 11/05/2022]
Abstract
In this study, we have demonstrated a two-legged, upright molecular design method for monochromatic and bright red luminescent LnIII -silica nanomaterials. A novel EuIII -silica hybrid nanoparticle was developed by using a doubly binding TPPO-Si(OEt)3 (TPPO: triphenyl phosphine oxide) linker. The TPPO-Si(OEt)3 was confirmed by 1 H, 31 P, 29 Si NMR spectroscopy and single-crystal X-ray analysis. Luminescent Eu(hfa)3 and Eu(tfc)3 moieties (hfa: hexafluoroacetylacetonate, tfc: 3-(trifluoromethylhydroxymethylene)camphorate) were fixed onto TPPO-Si(OEt)3 -modified silica nanoparticles, producing Eu(hfa)3 (TPPO-Si)2 -SiO2 and Eu(tfc)3 (TPPO-Si)2 -SiO2 , respectively. Eu(hfa)3 (TPPO-Si)2 -SiO2 exhibited the higher intrinsic luminescence quantum yield (93 %) and longer emission lifetime (0.98 ms), which is much larger than those of previously reported EuIII -based hybrid materials. Eu(tfc)3 (TPPO-Si)2 -SiO2 showed an extra-large intrinsic emission quantum yield (54 %), although the emission quantum yield for the precursor Eu(tfc)3 (TPPO-Si(OEt)3 )2 was found to be 39 %. These results confirmed that the TPPO-Si(OEt)3 linker is a promising candidate for development of EuIII -based luminescent materials.
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Affiliation(s)
- Teng Zhang
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan
| | - Yuichi Kitagawa
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan.,Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Ryoma Moriake
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | | | - Md Jahidul Islam
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan
| | - Tomoki Yoneda
- Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Yasuhide Inokuma
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan.,Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Koji Fushimi
- Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Yasuchika Hasegawa
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan.,Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
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2
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Rodrigues CV, Johnson KR, Lombardi VC, Rodrigues MO, Sobrinho JA, de Bettencourt-Dias A. Photocytotoxicity of Thiophene- and Bithiophene-Dipicolinato Luminescent Lanthanide Complexes. J Med Chem 2021; 64:7724-7734. [PMID: 34018753 DOI: 10.1021/acs.jmedchem.0c01805] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
New thiophene-dipicolinato-based compounds, K2nTdpa (n = 1, 2), were isolated. Their anions are sensitizers of lanthanide ion (LnIII) luminescence and singlet oxygen generation (1O2). Emission in the visible and near-infrared regions was observed for the LnIII complexes with efficiencies (ϕLn) ϕEu = 33% and ϕYb = 0.31% for 1Tdpa2- and ϕYb = 0.07% for 2Tdpa2-. The latter does not sensitize EuIII emission. Fluorescence imaging of HeLa live cells incubated with K3[Eu(1Tdpa)3] indicates that the complex permeates the cell membrane and localizes in the mitochondria. All complexes generate 1O2 in solution with efficiencies (ϕO12) as high as 13 and 23% for the GdIII complexes of 1Tdpa2- and 2Tdpa2-, respectively. [Ln(nTdpa)3]3- (n = 1, 2) are phototoxic to HeLa cells when irradiated with UV light with IC50 values as low as 4.2 μM for [Gd(2Tdpa)3]3- and 91.8 μM for [Eu(1Tdpa)3]3-. Flow cytometric analyses indicate both apoptotic and necrotic cell death pathways.
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Affiliation(s)
- Carime V Rodrigues
- Department of Chemistry, University of Nevada, Reno, Reno, Nevada 89557, United States.,Laboratório de Inorgânica e Materiais, Instituto de Química, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasilia 70910-900 DF, Brazil
| | - Katherine R Johnson
- Department of Chemistry, University of Nevada, Reno, Reno, Nevada 89557, United States
| | - Vincent C Lombardi
- Department of Microbiology and Immunology, University of Nevada, Reno, Reno, Nevada 89557, United States
| | - Marcelo O Rodrigues
- Laboratório de Inorgânica e Materiais, Instituto de Química, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasilia 70910-900 DF, Brazil
| | - Josiane A Sobrinho
- Department of Chemistry, University of Nevada, Reno, Reno, Nevada 89557, United States
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Masuya‐Suzuki A, Goto S, Kambe T, Karashimada R, Kubota Y, Iki N. Short Radiative Lifetime and Non-Triplet Sensitization in Near-Infrared-Luminescent Yb(III) Complex with Tripodal Schiff Base. ChemistryOpen 2021; 10:46-55. [PMID: 33476098 PMCID: PMC7819271 DOI: 10.1002/open.202000224] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 12/03/2020] [Indexed: 11/29/2022] Open
Abstract
We prepared Ln(III) (Ln=Eu, Gd, and Yb) complexes with a tripodal Schiff base, tris[2-(5-methylsalicylideneimino)ethyl]amine (H3 L) and studied their photophysical properties. Upon ligand excitation, YbL showed Yb(III)-centered luminescence in the near-infrared region. While the overall quantum yield (0.60(1)%) of YbL in acetonitrile was moderate among the reported values for Yb(III) complexes, its radiative lifetime (0.33(2) ms) was significantly shorter than those reported previously. We propose that the ligand-to-metal charge-transfer (LMCT) state mediated the sensitization in YbL. The emission and excitation spectra of EuL indicated the participation of the LMCT state in the sensitization. The radiative lifetime (0.84(7) ms) for EuL in the solid state was rather short compared to those of reported Eu(III) complexes. Our results show that the Yb(III) complex with the Schiff base ligand has two features: the short radiative lifetime and the non-triplet sensitization path.
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Affiliation(s)
- Atsuko Masuya‐Suzuki
- Graduate School of Environmental StudiesTohoku University6-6-07 Aramaki-aza Aoba, Aoba-ku SendaiMiyagi980-8579Japan
| | - Satoshi Goto
- Graduate School of Environmental StudiesTohoku University6-6-07 Aramaki-aza Aoba, Aoba-ku SendaiMiyagi980-8579Japan
| | - Takafumi Kambe
- Graduate School of Environmental StudiesTohoku University6-6-07 Aramaki-aza Aoba, Aoba-ku SendaiMiyagi980-8579Japan
| | - Ryunosuke Karashimada
- Graduate School of Environmental StudiesTohoku University6-6-07 Aramaki-aza Aoba, Aoba-ku SendaiMiyagi980-8579Japan
| | - Yasuhiro Kubota
- Department of Chemistry and Biomolecular ScienceFaculty of Engineering, Gifu University1-1 YanagidoGifu501-1193Japan
| | - Nobuhiko Iki
- Graduate School of Environmental StudiesTohoku University6-6-07 Aramaki-aza Aoba, Aoba-ku SendaiMiyagi980-8579Japan
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Yamamoto M, Kitagawa Y, Nakanishi T, Fushimi K, Hasegawa Y. Ligand-Assisted Back Energy Transfer in Luminescent TbIII
Complexes for Thermosensing Properties. Chemistry 2018; 24:17719-17726. [PMID: 30325067 DOI: 10.1002/chem.201804392] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Masanori Yamamoto
- Graduate School of Chemical Sciences and Engineering; Hokkaido University; North 13 West 8 Kita-ku Sapporo Hokkaido, 060-8628 Japan
| | - Yuichi Kitagawa
- Faculty of Engineering; Hokkaido University; North 13 West 8 Kita-ku Sapporo Hokkaido, 060-8628 Japan
| | - Takayuki Nakanishi
- Faculty of Industrial Science and Technology; Tokyo, University of Science, 6-3-1; Shinjuku Katsushika-ku Tokyo 125-8585 Japan
| | - Koji Fushimi
- Faculty of Engineering; Hokkaido University; North 13 West 8 Kita-ku Sapporo Hokkaido, 060-8628 Japan
| | - Yasuchika Hasegawa
- Faculty of Engineering; Hokkaido University; North 13 West 8 Kita-ku Sapporo Hokkaido, 060-8628 Japan
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Kitagawa Y, Nakanishi T, Fushimi K, Hasegawa Y. An Estimation Method of Metal-Ligand Orbital Mixing in Lanthanide(III) Complexes Using Magnetic Circular Dichroism. ChemistrySelect 2018. [DOI: 10.1002/slct.201800050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yuichi Kitagawa
- Faculty of Engineering; Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku; Sapporo, Hokkaido 060-8628 Japan
| | - Takayuki Nakanishi
- Faculty of Engineering; Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku; Sapporo, Hokkaido 060-8628 Japan
| | - Koji Fushimi
- Faculty of Engineering; Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku; Sapporo, Hokkaido 060-8628 Japan
| | - Yasuchika Hasegawa
- Faculty of Engineering; Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku; Sapporo, Hokkaido 060-8628 Japan
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Hirai Y, Nakanishi T, Kitagawa Y, Fushimi K, Seki T, Ito H, Hasegawa Y. Triboluminescence of Lanthanide Coordination Polymers with Face-to-Face Arranged Substituents. Angew Chem Int Ed Engl 2017; 56:7171-7175. [PMID: 28508446 DOI: 10.1002/anie.201703638] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 04/21/2017] [Indexed: 12/22/2022]
Abstract
Luminescence upon the grinding of solid materials (triboluminescence, TL) has long been a puzzling phenomenon in natural science and has also attracted attention because of its broad application in optics. It has been generally considered that the TL spectra exhibit similar profiles as those of photoluminescence (PL), although they occur from distinct stimuli. Herein, we describe for the first time a large spectral difference between these two physical phenomena using lanthanideIII coordination polymers with efficient TL and PL properties. They are composed of emission centers (TbIII and EuIII ions), antenna (hexafluoroacetylacetonate=hfa), and bridging ligands (2,5-bis(diphenylphosphoryl)furan=dpf). The emission color upon grinding (yellow TL) is clearly different from that upon UV irradiation (reddish-orange PL) in TbIII /EuIII -mixed coordination polymers [Tb,Eu(hfa)3 (dpf)]n (Tb/Eu=1). The results directly indicate the discrete excitation processes of PL and TL.
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Affiliation(s)
- Yuichi Hirai
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Sapporo, Hokkaido, 060-8628, Japan
| | - Takayuki Nakanishi
- Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Sapporo, Hokkaido, 060-8628, Japan
| | - Yuichi Kitagawa
- Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Sapporo, Hokkaido, 060-8628, Japan
| | - Koji Fushimi
- Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Sapporo, Hokkaido, 060-8628, Japan
| | - Tomohiro Seki
- Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Sapporo, Hokkaido, 060-8628, Japan
| | - Hajime Ito
- Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Sapporo, Hokkaido, 060-8628, Japan
| | - Yasuchika Hasegawa
- Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Sapporo, Hokkaido, 060-8628, Japan
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7
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Hirai Y, Nakanishi T, Kitagawa Y, Fushimi K, Seki T, Ito H, Hasegawa Y. Triboluminescence of Lanthanide Coordination Polymers with Face-to-Face Arranged Substituents. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703638] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuichi Hirai
- Graduate School of Chemical Sciences and Engineering; Hokkaido University; Kita-13 Jo, Nishi-8 Chome Sapporo Hokkaido 060-8628 Japan
| | - Takayuki Nakanishi
- Faculty of Engineering; Hokkaido University; Kita-13 Jo, Nishi-8 Chome Sapporo Hokkaido 060-8628 Japan
| | - Yuichi Kitagawa
- Faculty of Engineering; Hokkaido University; Kita-13 Jo, Nishi-8 Chome Sapporo Hokkaido 060-8628 Japan
| | - Koji Fushimi
- Faculty of Engineering; Hokkaido University; Kita-13 Jo, Nishi-8 Chome Sapporo Hokkaido 060-8628 Japan
| | - Tomohiro Seki
- Faculty of Engineering; Hokkaido University; Kita-13 Jo, Nishi-8 Chome Sapporo Hokkaido 060-8628 Japan
| | - Hajime Ito
- Faculty of Engineering; Hokkaido University; Kita-13 Jo, Nishi-8 Chome Sapporo Hokkaido 060-8628 Japan
| | - Yasuchika Hasegawa
- Faculty of Engineering; Hokkaido University; Kita-13 Jo, Nishi-8 Chome Sapporo Hokkaido 060-8628 Japan
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