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Moura JL, Costa IF, Santos PRS, Silva IF, Moura RT, Carneiro Neto AN, Faustino WM, Brito HF, Sabino JR, Teotonio EES. Enhancing the Luminescence of Eu(III) Complexes with the Ruthenocene Organometallic Unit as Ancillary Ligand. Inorg Chem 2022; 61:13510-13524. [PMID: 35984305 DOI: 10.1021/acs.inorgchem.2c02115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Five novel Eu(III)-β-diketonate complexes containing ruthenocene ancillary ligands (1,1'-bis(diphenylphosphoryl)ruthenocene─RcBPO) were synthesized and characterized. The coordination compounds presented the general formula [Eu(β-dik)3(RcBPO)], where β-dik stands for 2-thenoyltrifluoroacetonate (tta), 3-benzoyl-1,1,1-trifluoroacetone (btf), 2-dibenzoylmethanate (dbm), 2-acetyl-1,3-indandionate (aind), and 2-benzoyl-1,3-indandionate (bind), and RcBPO stands for 1,1'-bis(diphenylphosphoryl)ruthenocene. The [Eu(aind)3(RcBPO)] complex crystallizes in a monoclinic Cc non-centrosymmetric space group with the europium site environment, assuming a bicapped trigonal prism coordination polyhedron with the symmetry point group close to C2v. Photoluminescent properties for the solid-state samples were described in terms of excitation, emission, lifetime decay curves, and intrinsic and overall quantum yields. The replacement of the two coordinated H2O molecules by the RcBPO ancillary ligand leads to great enhancements of the overall quantum yields (QEuL), with the minimum increment by a factor of 5 for the case of [Eu(btf)3(RcBPO)] and the maximum enhancement of 270 times for the case of the [Eu(dbm)3(RcBPO)] complex. In addition, theoretical calculations were carried out to model the spectroscopic properties of the investigated compounds. To obtain theoretical Judd-Ofelt parameters (Ωλ, λ = 2, 4, and 6) and intramolecular energy transfer rates, the JOYSpectra web platform was employed using the structure obtained from density functional theory calculations. Hence, a rate equation model provided theoretical overall quantum yields, which are in great agreement with measured data.
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Affiliation(s)
- Jandeilson L Moura
- Department of Chemistry, Federal University of Paraíba, 58051-970 João Pessoa, Paraiba, Brazil
| | - Israel F Costa
- Department of Chemistry, Federal University of Paraíba, 58051-970 João Pessoa, Paraiba, Brazil.,Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
| | - Paulo R S Santos
- Department of Chemistry, Federal University of Paraíba, 58051-970 João Pessoa, Paraiba, Brazil
| | - Iran F Silva
- Department of Chemistry, Federal University of Paraíba, 58051-970 João Pessoa, Paraiba, Brazil
| | - Renaldo T Moura
- Department of Chemistry and Physics, Federal University of Paraíba, 58397-000 Areia, Paraiba, Brazil.,Department of Chemistry, Southern Methodist University, 75275-0314 Dallas, Texas, United States
| | - Albano N Carneiro Neto
- Physics Department and CICECO─Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Wagner M Faustino
- Department of Chemistry, Federal University of Paraíba, 58051-970 João Pessoa, Paraiba, Brazil
| | - Hermi F Brito
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
| | - José R Sabino
- Institute of Physics, Federal University of Goiás, 74690-900 Goiânia, Goiás, Brazil
| | - Ercules E S Teotonio
- Department of Chemistry, Federal University of Paraíba, 58051-970 João Pessoa, Paraiba, Brazil.,Institute of Inorganic Chemistry, Christian-Albrechts University of Kiel, 24118 Kiel, Germany
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Tan YS, Yeo CI, Tiekink ERT. A new monoclinic polymorph of 1,1'-bis-(di-phenyl-thio-phosphor-yl)ferrocene. Acta Crystallogr E Crystallogr Commun 2015; 71:886-9. [PMID: 26396747 PMCID: PMC4571348 DOI: 10.1107/s2056989015012682] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 07/01/2015] [Indexed: 12/03/2022]
Abstract
The title compound, [Fe(C17H14PS)2], is a second monoclinic polymorph (P21/c, with Z' = 1) of the previously reported monoclinic (C2/c, with Z' = 1/2) form [Fang et al. (1995 ▸). Polyhedron, 14, 2403-2409]. In the new form, the S atoms lie to the same side of the mol-ecule with the pseudo S-P⋯P-S torsion angle being -53.09 (3)°. By contrast to this almost syn disposition, in the C2/c polymorph, the Fe atom lies on a centre of inversion so that the S atoms are strictly anti, with a pseudo-S-P⋯P-S torsion angle of 180°. The significant difference in mol-ecular conformation between the two forms does not result in major perturbations in the P=S bond lengths nor in the distorted tetra-hedral geometries about the P atoms. The crystal packing of the new monoclinic polymorph features weak Cp-C-H⋯π(phen-yl) inter-actions consolidating linear supra-molecular chains along the a axis. These pack with no directional inter-actions between them.
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Affiliation(s)
- Yee Seng Tan
- Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Chien Ing Yeo
- Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Necas M, Beran M, Derek Woollins J, Novosad J. The synthesis and characterisation of bis(diisopropylphosphoryl)ferrocene Fe[(η5-C5H4)P(O)iPr2]2, bis(diisopropylthiophosphoryl)ferrocene Fe[(η5-C5H4)P(S)iPr2]2, and bis(diisopropylselenophosphoryl)ferrocene Fe[(η5-C5H4)P(Se)iPr2]2, the oxidised derivatives of bis(diisopropylphosphino)ferrocene. Polyhedron 2001. [DOI: 10.1016/s0277-5387(01)00709-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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