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Diaz-Rodriguez RM, Gálico DA, Chartrand D, Suturina EA, Murugesu M. Toward Opto-Structural Correlation to Investigate Luminescence Thermometry in an Organometallic Eu(II) Complex. J Am Chem Soc 2022; 144:912-921. [PMID: 34989573 DOI: 10.1021/jacs.1c11076] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Lanthanide-based luminescent materials have unique properties and are well-studied for many potential applications. In particular, the characteristic 5d → 4f emission of divalent lanthanide ions such as EuII allows for tunability of the emissive properties via modulation of the coordination environment. We report the synthesis and photoluminescence investigation of pentamethylcyclopentadienyleuropium(II) tetrahydroborate bis(tetrahydrofuran) dimer (1), the first example of an organometallic, discrete molecular EuII band-shift luminescence thermometer. Complex 1 exhibits an absolute sensitivity of 8.2 cm-1 K-1 at 320 K, the highest thus far observed for a lanthanide-based band-shift thermometer. Opto-structural correlation via variable-temperature single-crystal X-ray diffraction and fluorescence spectroscopy allows rationalization of the remarkable thermometric luminescence of complex 1 and reveals the significant potential of molecular EuII compounds in luminescence thermometry.
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Affiliation(s)
- Roberto M Diaz-Rodriguez
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Diogo A Gálico
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Daniel Chartrand
- Department of Chemistry, Université de Montréal, Montréal, Quebec H3T 1J4, Canada
| | - Elizaveta A Suturina
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Muralee Murugesu
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
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2
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Kang JS, Ham AR, Kang JG, Leung KT. White and Tunable Emission from and Rhodamine B Detection by Modified Zinc Oxide Nanowalls. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:9774-9780. [PMID: 30053781 DOI: 10.1021/acs.langmuir.8b01238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
To gain better optical and optoelectrical properties, doping trivalent lanthanide cations into host materials is a very attractive approach in nanoscience. Here, we use a transparent conducting oxide, zinc oxide, as the host material to directly embed trivalent terbium cations without the need for any postgrowth treatment, and we investigate the photophysical effect of the dopant. Trivalent Tb cations embedded in ZnO nanowalls produce hypersensitive green emission (at 545 nm, corresponding to the 5D4 → 7F5 transition) and convert the emission color of ZnO from yellow into white. Evidently, the photoluminescence emission intensity of Tb(III) is further increased by close to 10-fold due to the plasmonic effect introduced by noble metal (Ag and Pt) nanoparticles. The characteristic Tb(III) emission is found to be tunable from white to red and is examined for its potential chemosensing application for rhodamine B involving a plausible cascade energy transfer mechanism from ZnO to rhodamine B via Tb(III) cations.
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Affiliation(s)
- Jung-Soo Kang
- WATLab and Department of Chemistry , University of Waterloo , Waterloo , Ontario N2L 3G1 , Canada
| | - A-Ri Ham
- Department of Chemistry , Chungnam National University , Daejeon 34143 , Republic of Korea
| | - Jun-Gill Kang
- Department of Chemistry , Chungnam National University , Daejeon 34143 , Republic of Korea
- ReSEAT Program , Korea Institute Science and Technology Information , Daejeon 34141 , Republic of Korea
| | - Kam Tong Leung
- WATLab and Department of Chemistry , University of Waterloo , Waterloo , Ontario N2L 3G1 , Canada
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3
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Ren YX, Wang ZX, Zhang ML, Guo YH, Wang JJ, Chen XL. Three 2D Ln-Sulfoterephthalate Complexes with 4,4′-Bisbiphenyl-imidazole Featuring Helical Chains. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yi-Xia Ren
- College of Chemistry and Chemical Engineering; Shaanxi Key Laboratory of Chemical Reaction Engineering; Yan′an University; 716000 Yan'an Shaanxi P. R. China
| | - Zhi-Xiang Wang
- College of Chemistry and Chemical Engineering; Shaanxi Key Laboratory of Chemical Reaction Engineering; Yan′an University; 716000 Yan'an Shaanxi P. R. China
| | - Mei-Li Zhang
- College of Chemistry and Chemical Engineering; Shaanxi Key Laboratory of Chemical Reaction Engineering; Yan′an University; 716000 Yan'an Shaanxi P. R. China
| | - Yan-Hong Guo
- College of Chemistry and Chemical Engineering; Shaanxi Key Laboratory of Chemical Reaction Engineering; Yan′an University; 716000 Yan'an Shaanxi P. R. China
| | - Ji-Jiang Wang
- College of Chemistry and Chemical Engineering; Shaanxi Key Laboratory of Chemical Reaction Engineering; Yan′an University; 716000 Yan'an Shaanxi P. R. China
| | - Xiao-Li Chen
- College of Chemistry and Chemical Engineering; Shaanxi Key Laboratory of Chemical Reaction Engineering; Yan′an University; 716000 Yan'an Shaanxi P. R. China
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4
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Kang JS, Leung KT, Cho HK, Kang JG, Sohn Y. Luminescence and Magnetic Properties of Tb(III) Complexes with TETA and Synergistic Effect by 1,10-Phenanthroline. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10889] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Jung-Soo Kang
- WATLab and Department of Chemistry; University of Waterloo; Waterloo Ontario N2L 3G1 Canada
| | - Kam Tong Leung
- WATLab and Department of Chemistry; University of Waterloo; Waterloo Ontario N2L 3G1 Canada
| | - Hyung-Kook Cho
- Department of Chemistry; Chungnam National University; Daejeon 34134 Republic of Korea
| | - Jun-Gill Kang
- Department of Chemistry; Chungnam National University; Daejeon 34134 Republic of Korea
- ReSEAT Program; Korea Institute Science and Technology Information; Daejeon 34141 Republic of Korea
| | - Youngku Sohn
- Department of Chemistry; Yeungnam University; Gyeongsan 38541 Republic of Korea
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Han G, Deng Y, Sun J, Ling J, Shen Z. Research into europium complexes as magnetic resonance imaging contrast agents (Review). Exp Ther Med 2015; 9:1561-1566. [PMID: 26136858 DOI: 10.3892/etm.2015.2297] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 01/20/2015] [Indexed: 12/31/2022] Open
Abstract
Europium (Eu) is a paramagnetic lanthanide element that possesses an outstanding luminescent property. Eu complexes are ideal fluorescence imaging (FI) agents. Eu2+ has satisfactory relaxivity and optical properties, and can realize magnetic resonance (MRI)-FI dual imaging applications when used with appropriate cryptands that render it oxidatively stable. By contrast, based on the chemical exchange saturation transfer (CEST) mechanism, Eu3+ complexes can provide enhanced MRI sensitivity when used with optimal cryptands, incorporated into polymeric CEST agents or blended with Gd3+. Eu complexes are promising in MRI-FI dual imaging applications and have a bright future.
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Affiliation(s)
- Guocan Han
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Yangwei Deng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P.R. China
| | - Jihong Sun
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Jun Ling
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P.R. China
| | - Zhiquan Shen
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P.R. China
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Jeong YK, Kim MA, Lee HS, Kim JM, Lee SW, Kang JG. Structural and photophysical properties of HPPCO (4-hydroxy-5-phenyl-6H-pyrido[3,2,1-jk]carbazol-6-one) derivatives. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 134:184-190. [PMID: 25011045 DOI: 10.1016/j.saa.2014.06.077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 05/20/2014] [Accepted: 06/03/2014] [Indexed: 06/03/2023]
Abstract
Proton-substitution effects of 4-hydroxy-5-phenyl-6H-pyrido[3,2,1-jk]carbazol-6-one (HPPCO) on structural and photophysical properties were presented. HPPCO crystallized in the orthorhombic space group Pbca with an intermolecular hydrogen bonding between OH and oxygen atom of the carbonyl. The proton-substituted derivatives, 6-oxo-5-phenyl-6H-pyrido[3,2,1-jk]carbazol-4-yl acetate (OPPCA) and 6-oxo-5-phenyl-6H-pyrido[3,2,1-jk]carbazol-4-yl benzoate (OPPCB), crystallized in the monoclinic P2₁/c space group. For OPPCA and OPPCB, a weak interaction between carbonyl oxygen atom in the substituted group and carbon atom in the fused ring was responsible for three-dimensional arrangements. In addition, 6-oxo-5-phenyl-6H-pyrido[3,2,1-jk]carbazol-4-yl furan-2-carboxylate (OPPCF), and 6-oxo-5-phenyl-6H-pyrido[3,2,1-jk]carbazol-4-yl naphthoate (OPPCN) were also synthesized. HPPCO and the four derivatives excited by ultraviolet (UV) light produced blue emission. Proton substitution of the OH group significantly increased the radiative transitions and moderately decreased the non-radiative transitions. Consequently the luminescence quantum yields of the derivatives enhanced more than 4.6-fold, no matter what the groups were substituted. Structural and optical properties were further determined using density functional theory (DFT) and ZINDO calculations. The planar structure of the pyridocarbazole-fused ring resulted in π→π(*) electronic transitions within the main frame, with an additional transition from the n(O) of carbonyl to the π(*) of the main frame. The three excited states that arose from these transitions were responsible for the blue luminescence.
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Affiliation(s)
- Yong-Kwang Jeong
- Department of Chemistry, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Min-Ah Kim
- Department of Chemistry, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Hyo-Sung Lee
- Department of Chemistry, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Jong-Moon Kim
- Department of Chemistry, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Sung Woo Lee
- Center for Research Facilities, Chungnam National University, Yuseong-gu, Daejeon 305-764, Republic of Korea
| | - Jun-Gill Kang
- Department of Chemistry, Chungnam National University, Daejeon 305-764, Republic of Korea.
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7
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Sun W, Zhu Y, Wang A, Kong L, Li S, Wu J, Tian Y. Formation and nonlinear optical properties of Ag nanocrystals capped with the conjugated ligand carbazolyl styryl terpyridine. NEW J CHEM 2015. [DOI: 10.1039/c5nj00587f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
NLO (non-linear optics) properties of the optical organic molecules were significantly improved when capped with nano-Ag.
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Affiliation(s)
- Wan Sun
- Department of Chemistry
- Anhui Province Key Laboratory of Functional Inorganic Materials
- Anhui University
- Hefei 230039
- China
| | - Yingzhong Zhu
- Department of Chemistry
- Anhui Province Key Laboratory of Functional Inorganic Materials
- Anhui University
- Hefei 230039
- China
| | - Anran Wang
- Department of Chemistry
- Anhui Province Key Laboratory of Functional Inorganic Materials
- Anhui University
- Hefei 230039
- China
| | - Lin Kong
- Department of Chemistry
- Anhui Province Key Laboratory of Functional Inorganic Materials
- Anhui University
- Hefei 230039
- China
| | - Shengli Li
- Department of Chemistry
- Anhui Province Key Laboratory of Functional Inorganic Materials
- Anhui University
- Hefei 230039
- China
| | - Jieying Wu
- Department of Chemistry
- Anhui Province Key Laboratory of Functional Inorganic Materials
- Anhui University
- Hefei 230039
- China
| | - Yupeng Tian
- Department of Chemistry
- Anhui Province Key Laboratory of Functional Inorganic Materials
- Anhui University
- Hefei 230039
- China
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8
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Lee JC, Jeong YK, Kim JM, Kang JG. Sensitized luminescence of Eu(III) complexes with Schiff-base and 1,10-phenanthroline: role of Schiff-base as a sensitizer. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 124:256-264. [PMID: 24486869 DOI: 10.1016/j.saa.2013.12.117] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 12/24/2013] [Accepted: 12/30/2013] [Indexed: 06/03/2023]
Abstract
The synthesis and characterization of two europium(III) complexes, [Eu(L)(H2O)]Cl and [Eu(L)(phen)(H2O)]Cl (L=N,N'-bis(salicylidene)-3,6-dioxa-1,8-diaminooctanato and phen=1,10-phenanthroline) are reported. Exciting the Eu(III) complexes with near-UV light resulted in sensitized red luminescence by a transfer of energy from the triplet excited states of L to the Eu(III) ion. Introducing phen to the complex increased the quantum yield of the L-sensitized luminescence of [Eu(L)(phen)(H2O)](+) by more than 18 times relative to [Eu(L)(H2O)](+). The optimized structures and the configurational interaction singles (CIS) of the [Eu(L)(phen)(H2O)](+) and [Eu(L)(H2O)](+) molecules were theoretically studied using ab initio Hartree-Fock (HF). The theoretical calculations showed that the first nearly degenerate 1A and 2A excited states, more specifically the π→π(*) transitions of the two phenolate terminals, contributed significantly to the energy transfer process. Although the phen excitation route was forbidden in [Eu(L)(phen)(H2O)](+), the coordination of phen enhanced the absorbing ability of L markedly and caused the energy transfer from the 1A and 2A states to the (5)D1 and (5)D0 states of Eu(III) to predominate over any radiative and nonradiative processes occurring between the excited states and the ground states of the L moiety. Consequently, the quantum yield of the sensitized luminescence was enhanced significantly in [Eu(L)(phen)(H2O)](+).
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Affiliation(s)
- Jong Cheol Lee
- Department of Chemistry, Chungnam National University, Daejeon 305-764, Republic of Korea; P.O. Box 35-5, Tech-3, Yuseong, Daejeon 305-600, Republic of Korea
| | - Yong-Kwang Jeong
- P.O. Box 35-5, Tech-3, Yuseong, Daejeon 305-600, Republic of Korea
| | - Jong-Moon Kim
- P.O. Box 35-5, Tech-3, Yuseong, Daejeon 305-600, Republic of Korea
| | - Jun-Gill Kang
- P.O. Box 35-5, Tech-3, Yuseong, Daejeon 305-600, Republic of Korea.
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9
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Kong L, Yang J, Li S, Zhang Q, Xue Z, Zhou H, Wu J, Jin B, Tian Y. A Self‐Assembled Nanohybrid Composed of Fluorophore–Phenylamine Nanorods and Ag Nanocrystals: Energy Transfer, Wavelength Shift of Fluorescence and TPEF Applications for Live‐Cell Imaging. Chemistry 2013; 19:16625-33. [DOI: 10.1002/chem.201302874] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Lin Kong
- Department of Chemistry, Key Laboratory of Inorganic Materials Chemistry of Anhui Province, Anhui University, 111 Jiu‐Long Road, Hefei, 230039 (P.R. China), Fax: (+86) 551‐63861279
| | - Jia‐xiang Yang
- Department of Chemistry, Key Laboratory of Inorganic Materials Chemistry of Anhui Province, Anhui University, 111 Jiu‐Long Road, Hefei, 230039 (P.R. China), Fax: (+86) 551‐63861279
| | - Sheng‐li Li
- Department of Chemistry, Key Laboratory of Inorganic Materials Chemistry of Anhui Province, Anhui University, 111 Jiu‐Long Road, Hefei, 230039 (P.R. China), Fax: (+86) 551‐63861279
| | - Qiong Zhang
- Department of Chemistry, Key Laboratory of Inorganic Materials Chemistry of Anhui Province, Anhui University, 111 Jiu‐Long Road, Hefei, 230039 (P.R. China), Fax: (+86) 551‐63861279
| | - Zhao‐ming Xue
- Department of Chemistry, Key Laboratory of Inorganic Materials Chemistry of Anhui Province, Anhui University, 111 Jiu‐Long Road, Hefei, 230039 (P.R. China), Fax: (+86) 551‐63861279
| | - Hong‐ping Zhou
- Department of Chemistry, Key Laboratory of Inorganic Materials Chemistry of Anhui Province, Anhui University, 111 Jiu‐Long Road, Hefei, 230039 (P.R. China), Fax: (+86) 551‐63861279
| | - Jie‐ying Wu
- Department of Chemistry, Key Laboratory of Inorganic Materials Chemistry of Anhui Province, Anhui University, 111 Jiu‐Long Road, Hefei, 230039 (P.R. China), Fax: (+86) 551‐63861279
| | - Bao‐kang Jin
- Department of Chemistry, Key Laboratory of Inorganic Materials Chemistry of Anhui Province, Anhui University, 111 Jiu‐Long Road, Hefei, 230039 (P.R. China), Fax: (+86) 551‐63861279
| | - Yu‐peng Tian
- Department of Chemistry, Key Laboratory of Inorganic Materials Chemistry of Anhui Province, Anhui University, 111 Jiu‐Long Road, Hefei, 230039 (P.R. China), Fax: (+86) 551‐63861279
- State Key Laboratory of Crystal Materials, Shandong University, 27 Shan‐Da South Road, Jinan, (P. R. China)
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