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Al-Busaidi IJ, Ilmi R, Dutra JDL, Oliveira WF, Haque A, Al Rasbi NK, Marken F, Raithby PR, Khan MS. Utilization of a Pt(ii) di-yne chromophore incorporating a 2,2'-bipyridine-5,5'-diyl spacer as a chelate to synthesize a green and red emitting d-f-d heterotrinuclear complex. Dalton Trans 2021; 50:1465-1477. [PMID: 33439190 DOI: 10.1039/d0dt04198j] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new heterotrinuclear (d-f-d) complex [Eu(btfa)31c] (btfa = 4,4,4-trifluoro-1-phenyl-1,3-butanedione and 1c = [(Ph)(Et3P)2Pt-C[triple bond, length as m-dash]C-R-C[triple bond, length as m-dash]C-Pt(Et3P)2(Ph)] (R = 2,2'-bipyridine-5,5'-diyl) has been synthesized by utilizing the N,N-donor sites of the organometallic chromophore. The complex was characterized by analytical and spectroscopic methods. Photophysical properties of the complex were analysed in detail using both steady-state and time-resolved emission and excitation spectroscopy. The optical absorption spectrum of the complex is dominated by the spin allowed π-π* transitions of the btfa and 1c units in the UV-visible region (200-418 nm) and thus is excitable over a wide range of wavelengths across the UV into the visible region of the electromagnetic spectrum. The complex displays typical red Eu(iii) emission when excited at 345 nm. However, it also shows green emission when excited at 464 nm and, thus could be an interesting candidate for full colour display applications. The change in the colour could be a result of the high value of the energy back-transfer rate (6.73 × 105 s-1) from the triplet state of the organometallic chromophore to the 5D1 state of Eu(iii). Judd-Ofelt (J-O) intensity parameters (Ω2 and Ω4), radiative (AR), non-radiative (AR) decay rates and intrinsic quantum yield (Q) have been calculated.
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Affiliation(s)
| | - Rashid Ilmi
- Department of Chemistry, Sultan Qaboos University, P.O. Box 36, Al Khoud 123, Oman.
| | - José D L Dutra
- Pople Computational Chemistry Laboratory, Department of Chemistry, UFS, 49100-000 São Cristóvão, Sergipe, Brazil
| | - Willyan F Oliveira
- Pople Computational Chemistry Laboratory, Department of Chemistry, UFS, 49100-000 São Cristóvão, Sergipe, Brazil
| | - Ashanul Haque
- Department of Chemistry, Sultan Qaboos University, P.O. Box 36, Al Khoud 123, Oman. and Department of Chemistry, College of Science, University of Hail, Ha'il 81451, Kingdom of Saudi Arabia
| | - Nawal K Al Rasbi
- Department of Chemistry, Sultan Qaboos University, P.O. Box 36, Al Khoud 123, Oman.
| | - Frank Marken
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK.
| | - Paul R Raithby
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK.
| | - Muhammad S Khan
- Department of Chemistry, Sultan Qaboos University, P.O. Box 36, Al Khoud 123, Oman.
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Lines AM, Wang Z, Clark SB, Bryan SA. Electrochemistry and Spectroelectrochemistry of Luminescent Europium Complexes. ELECTROANAL 2016. [DOI: 10.1002/elan.201600034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Amanda M. Lines
- Department of Chemistry Washington State University Pullman WA 99163
- Energy and Environment Directorate Pacific Northwest National Laboratory Richland WA 99352
| | - Zheming Wang
- E Directorate Pacific Northwest National Laboratory Richland WA 99352
| | - Sue B. Clark
- Department of Chemistry Washington State University Pullman WA 99163
- Energy and Environment Directorate Pacific Northwest National Laboratory Richland WA 99352
| | - Samuel A. Bryan
- Energy and Environment Directorate Pacific Northwest National Laboratory Richland WA 99352
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Orlik M, Gritzner G. Chronocoulometric studies of the kinetics of the electro-reduction of Eu3+ in dimethylsulfoxide: Experiment and simulation. J Electroanal Chem (Lausanne) 2005. [DOI: 10.1016/j.jelechem.2004.10.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Orlik M. An improved algorithm for the numerical simulation of cyclic voltammetric curves affected by the ohmic potential drops and its application to the kinetics of bis(biphenyl)chromium(I) electroreduction. J Electroanal Chem (Lausanne) 2005. [DOI: 10.1016/j.jelechem.2004.10.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Emery SB, Hubbley JL, Roy D. Voltammetric and amperometric analyses of electrochemical nucleation: electrodeposition of copper on nickel and tantalum. J Electroanal Chem (Lausanne) 2004. [DOI: 10.1016/j.jelechem.2004.01.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kišová L, Komenda J, Mayr I, Orlik M, Gritzner G. Electrode kinetics of Eu3+ in sodium perchlorate solutions in dimethylsulfoxide. J Electroanal Chem (Lausanne) 2004. [DOI: 10.1016/j.jelechem.2003.11.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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