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Rabah J, Nasrallah H, Wright K, Gérard I, Fensterbank H, Bui TTV, Marrot J, Tran TT, Fatima A, Ha-Thi MH, Méallet R, Burdzinski G, Clavier G, Boujday S, Cachet H, Debiemme-Chouvy C, Maisonhaute E, Vallée A, Allard E. Clicked BODIPY-Fullerene-Peptide Assemblies: Studies of Electron Transfer Processes in Self-Assembled Monolayers on Gold Surfaces. Chempluschem 2024; 89:e202300717. [PMID: 38406894 DOI: 10.1002/cplu.202300717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/30/2024] [Accepted: 02/23/2024] [Indexed: 02/27/2024]
Abstract
Two BODIPY-C60-peptide assemblies were synthesized by CuAAC reactions of BODIPY-C60 dyads and a helical peptide functionalized with a terminal alkyne group and an azide group, respectively. The helical peptide within these assemblies was functionalized at its other end by a disulfide group, allowing formation of self-assembled monolayers (SAMs) on gold surfaces. Characterizations of these SAMs, as well as those of reference molecules (BODIPY-C60-alkyl, C60-peptide and BODIPY-peptide), were carried out by PM-IRRAS and cyclic voltammetry. BODIPY-C60-peptide SAMs are more densely packed than BODIPY-C60-alkyl and BODIPY-peptide based SAMs. These findings were attributed to the rigid peptide helical conformation along with peptide-peptide and C60-C60 interactions within the monolayers. However, less dense monolayers were obtained with the target assemblies compared to the C60-peptide, as the BODIPY entity likely disrupts organization within the monolayers. Finally, electron transfer kinetics measurements by ultra-fast electrochemistry experiments demonstrated that the helical peptide is a better electron mediator in comparison to alkyl chains. This property was exploited along with those of the BODIPY-C60 dyads in a photo-current generation experiment by converting the resulting excited and/or charge separated states from photo-illumination of the dyad into electrical energy.
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Affiliation(s)
- Jad Rabah
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000, Versailles, France
| | - Houssein Nasrallah
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000, Versailles, France
| | - Karen Wright
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000, Versailles, France
| | - Isabelle Gérard
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000, Versailles, France
| | - Hélène Fensterbank
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000, Versailles, France
| | - Thi-Tuyet-Van Bui
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000, Versailles, France
| | - Jérôme Marrot
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000, Versailles, France
| | - Thu-Trang Tran
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405, Orsay, France
| | - Anam Fatima
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405, Orsay, France
| | - Minh-Huong Ha-Thi
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405, Orsay, France
| | - Rachel Méallet
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405, Orsay, France
| | - Gotard Burdzinski
- Adam Mickiewicz University, Poznan, Faculty of Physics Poznań, PL-61614, Poznan, Poland
| | - Gilles Clavier
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190, Gif-sur-Yvette, France
| | - Souhir Boujday
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), 4 place Jussieu, F-75005, Paris, France
| | - Hubert Cachet
- Laboratoire Interfaces et Systèmes Electrochimiques, Sorbonne Université, CNRS, 4 place Jussieu, 75005, Paris, France
| | - Catherine Debiemme-Chouvy
- Laboratoire Interfaces et Systèmes Electrochimiques, Sorbonne Université, CNRS, 4 place Jussieu, 75005, Paris, France
| | - Emmanuel Maisonhaute
- Laboratoire Interfaces et Systèmes Electrochimiques, Sorbonne Université, CNRS, 4 place Jussieu, 75005, Paris, France
| | - Anne Vallée
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000, Versailles, France
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), 4 place Jussieu, F-75005, Paris, France
| | - Emmanuel Allard
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000, Versailles, France
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Bibi N, Guerra RB, Huamaní LESC, Formiga ALB. Crystal structure, electrochemical and spectroscopic investigation of mer-tris-[2-(1 H-imidazol-2-yl-κ N3)pyrimidine-κ N1]ruthenium(II) bis-(hexa-fluorido-phosphate) trihydrate. Acta Crystallogr E Crystallogr Commun 2018; 74:874-877. [PMID: 30002877 PMCID: PMC6038643 DOI: 10.1107/s2056989018007995] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 05/30/2018] [Indexed: 11/17/2022]
Abstract
The crystal structure of the title compound, [Ru(C7H6N4)3](PF6)2·3H2O, a novel RuII complex with the bidentate ligand 2-(1H-imidazol-2-yl)pyrimidine, comprises a complex cation in the meridional form exclusively, with a distorted octa-hedral geometry about the ruthenium(II) cation. The Ru-N bonds involving imidazole N atoms are comparatively shorter than the Ru-N bonds from pyrimidine because of the stronger basicity of the imidazole moiety. The three-dimensional hydrogen-bonded network involves all species in the lattice with water mol-ecules inter-acting with both counter-ions and NH hydrogen atoms from the complex. The supra-molecular structure of the crystal also shows that two units of the complex bind strongly through a mutual N-H⋯N bond. The electronic absorption spectrum of the complex displays an asymmetric band at 421 nm, which might point to the presence of two metal-to-ligand charge-transfer (MLCT) bands. Electrochemical measurements show a quasi-reversible peak referring to the RuIII/RuII reduction at 0.87 V versus Ag/AgCl.
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Affiliation(s)
- Naheed Bibi
- Institute of Chemistry, University of Campinas – UNICAMP, PO Box 6154, 13083-970, Campinas, SP, Brazil
| | - Renan Barrach Guerra
- Institute of Chemistry, University of Campinas – UNICAMP, PO Box 6154, 13083-970, Campinas, SP, Brazil
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