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Gupta R, Negi A, Pal AK. A Bichromophoric Approach to Induce Luminescence - A Blend of Experimental and Theoretical Studies. Chem Asian J 2024; 19:e202400270. [PMID: 38742860 DOI: 10.1002/asia.202400270] [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: 03/09/2024] [Revised: 05/11/2024] [Accepted: 05/14/2024] [Indexed: 05/16/2024]
Abstract
Two homoleptic terpyridyl complexes of Ru(II), 1 and Fe(II), 2 were synthesized using a ligand L1 that contained a phenyl spacer between an anthracenyl (An) and a terpyridyl (tpy) moiety. An equilibrated-bichromophoric strategy was adopted to induce photoluminescence in 1 and 2. A glimpse into the excited state photophysical properties of 1 and 2 revealed that 1 exhibited NIR emission at ~700 nm with an excited state lifetime components of 1.33 and 6.52 ns. On the other hand, 2 was found to be non-luminescent. The origin of emission in case of 1 was attributed to the effect of phenyl spacer which rendered the 3An state to be nearly isoenergetic to the emissive 3MLCT state of 1 facilitating 3MLCT-3An equilibrium. This fact was supported by experimental (photocurrent generation) and theoretical (potential energy diagram) evidences.
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Affiliation(s)
- Rahat Gupta
- Department of Chemistry, Indian Institute of Technology Jammu, Nagrota Bypass Road, Jammu and Kashmir, 181221, India
| | - Anshul Negi
- Department of Chemistry, Indian Institute of Technology Jammu, Nagrota Bypass Road, Jammu and Kashmir, 181221, India
| | - Amlan K Pal
- Department of Chemistry, Indian Institute of Technology Jammu, Nagrota Bypass Road, Jammu and Kashmir, 181221, India
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2
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Mongal BN, Bhattacharya S, Mandal TK, Datta J, Naskar S. Synthesis, characterization and photovoltaic studies of 2,2′;6′,2ʺ-terpyridine-based ruthenium complexes with phenylamino, anthranyl and furfuryl substitutions at the 4′-position. J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1924368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Binitendra Naath Mongal
- Department of Chemistry, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
- School of Engineering and Sciences, GD Goenka University, Sohna, Haryana, India
| | - Sayantani Bhattacharya
- Department of Chemistry, Renewable Energy Research Centre, Heritage institute of Technology, Kolkata, West Bengal, India
| | - Tarun Kanti Mandal
- Faculty Councils for PG studies, Vidyasagar University, Medinipur, West Bengal, India
| | - Jayati Datta
- Department of Chemistry, Renewable Energy Research Centre, Heritage institute of Technology, Kolkata, West Bengal, India
| | - Subhendu Naskar
- Department of Chemistry, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
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Voutyritsa E, Triandafillidi I, Tzouras NV, Nikitas NF, Pefkianakis EK, Vougioukalakis GC, Kokotos CG. Photocatalytic Atom Transfer Radical Addition to Olefins Utilizing Novel Photocatalysts. Molecules 2019; 24:molecules24091644. [PMID: 31027341 PMCID: PMC6540230 DOI: 10.3390/molecules24091644] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 04/22/2019] [Accepted: 04/25/2019] [Indexed: 11/16/2022] Open
Abstract
Photocatalysis is a rapidly evolving area of research in modern organic synthesis. Among the traditional photocatalysts, metal-complexes based on ruthenium or iridium are the most common. Herein, we present the synthesis of two photoactive, ruthenium-based complexes bearing pyridine-quinoline or terpyridine ligands with extended aromatic conjugation. Our complexes were utilized in the atom transfer radical addition (ATRA) of haloalkanes to olefins, using bromoacetonitrile or bromotrichloromethane as the source of the alkyl group. The tailor-made ruthenium-based catalyst bearing the pyridine-quinoline bidentate ligand proved to be the best-performing photocatalyst, among a range of metal complexes and organocatalysts, efficiently catalyzing both reactions. These photocatalytic atom transfer protocols can be expanded into a broad scope of olefins. In both protocols, the photocatalytic reactions led to products in good to excellent isolated yields.
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Affiliation(s)
- Errika Voutyritsa
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis 15771, Athens, Greece.
| | - Ierasia Triandafillidi
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis 15771, Athens, Greece.
| | - Nikolaos V Tzouras
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis 15771, Athens, Greece.
| | - Nikolaos F Nikitas
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis 15771, Athens, Greece.
| | - Eleftherios K Pefkianakis
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis 15771, Athens, Greece.
| | - Georgios C Vougioukalakis
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis 15771, Athens, Greece.
| | - Christoforos G Kokotos
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis 15771, Athens, Greece.
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4
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Ramasamy S, Gopi P, Raju S, Kathavarayan S. Comparative analysis of fluorene and carbazole fused triphenylamine sensitizer donor units with new anchoring mode in dye-sensitized solar cells. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2017.11.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Guimaraes RR, Parussulo AL, Matias TA, Toma HE, Araki K. Electrostatic blocking barrier as an effective strategy to inhibit electron recombination in DSSCs. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.09.096] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Pashaei B, Shahroosvand H, Graetzel M, Nazeeruddin MK. Influence of Ancillary Ligands in Dye-Sensitized Solar Cells. Chem Rev 2016; 116:9485-564. [PMID: 27479482 DOI: 10.1021/acs.chemrev.5b00621] [Citation(s) in RCA: 148] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Dye-sensitized solar cells (DSSCs) have motivated many researchers to develop various sensitizers with tailored properties involving anchoring and ancillary ligands. Ancillary ligands carry favorable light-harvesting abilities and are therefore crucial in determining the overall power conversion efficiencies. The use of ancillary ligands having aliphatic chains and/or π-extended aromatic units decreases charge recombination and permits the collection of a large fraction of sunlight. This review aims to provide insight into the relationship between ancillary ligand structure and DSSC properties, which can further guide the function-oriented design and synthesis of different sensitizers for DSSCs. This review outlines how the new and rapidly expanding class of chelating ancillary ligands bearing 2,2'-bipyridyl, 1,10-phenanthroline, carbene, dipyridylamine, pyridyl-benzimidazole, pyridyl-azolate, and other aromatic ligands provides a conduit for potentially enhancing the performance and stability of DSSCs. Finally, these classes of Ru polypyridyl complexes have gained increasing interest for feasible large-scale commercialization of DSSCs due to their more favorable light-harvesting abilities and long-term thermal and chemical stabilities compared with other conventional sensitizers. Therefore, the main idea is to inspire readers to explore new avenues in the design of new sensitizers for DSSCs based on different ancillary ligands.
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Affiliation(s)
- Babak Pashaei
- Chemistry Department, University of Zanjan , Zanjan, Iran
| | | | - Michael Graetzel
- Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | - Mohammad Khaja Nazeeruddin
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne , CH-1951 Sion, Switzerland
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Pefkianakis EK, Manthou VS, Paraskevopoulou P, Sakellariou G, Vougioukalakis GC. A New Family of Fullerene Derivatives Bearing Long Alkyl and Triethyleneglycol Moieties. ChemistrySelect 2016. [DOI: 10.1002/slct.201600405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Eleftherios K. Pefkianakis
- Laboratory of Organic Chemistry; Department of Chemistry; University of Athens, Greece, Panepistimiopolis; GR-15771 Athens Greece
- Laboratory of Industrial Chemistry; Department of Chemistry; University of Athens, Greece, Panepistimiopolis; GR-15771 Athens Greece
| | - Victoria S. Manthou
- Laboratory of Organic Chemistry; Department of Chemistry; University of Athens, Greece, Panepistimiopolis; GR-15771 Athens Greece
| | - Patrina Paraskevopoulou
- Laboratory of Inorganic Chemistry; Department of Chemistry; University of Athens, Greece, Panepistimiopolis; GR-15771 Athens Greece
| | - Georgios Sakellariou
- Laboratory of Industrial Chemistry; Department of Chemistry; University of Athens, Greece, Panepistimiopolis; GR-15771 Athens Greece
| | - Georgios C. Vougioukalakis
- Laboratory of Organic Chemistry; Department of Chemistry; University of Athens, Greece, Panepistimiopolis; GR-15771 Athens Greece
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Fan S, Lu X, Sun H, Zhou G, Chang YJ, Wang ZS. Effect of the co-sensitization sequence on the performance of dye-sensitized solar cells with porphyrin and organic dyes. Phys Chem Chem Phys 2016; 18:932-8. [DOI: 10.1039/c5cp05986k] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To obtain a broad spectral response in the visible region, TiO2 film is co-sensitized with a porphyrin dye (FNE57 or FNE59) and an organic dye (FNE46).
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Affiliation(s)
- Suhua Fan
- Department of Chemistry
- Lab of Advanced Materials
- Collaborative Innovation Center of Chemistry for Energy Materials
- Fudan University
- Shanghai 200438
| | - Xuefeng Lu
- Department of Chemistry
- Lab of Advanced Materials
- Collaborative Innovation Center of Chemistry for Energy Materials
- Fudan University
- Shanghai 200438
| | - Hong Sun
- Department of Chemistry
- Lab of Advanced Materials
- Collaborative Innovation Center of Chemistry for Energy Materials
- Fudan University
- Shanghai 200438
| | - Gang Zhou
- Department of Chemistry
- Lab of Advanced Materials
- Collaborative Innovation Center of Chemistry for Energy Materials
- Fudan University
- Shanghai 200438
| | - Yuan Jay Chang
- Department of Chemistry
- Tung Hai University
- Taichung
- P. R. China
| | - Zhong-Sheng Wang
- Department of Chemistry
- Lab of Advanced Materials
- Collaborative Innovation Center of Chemistry for Energy Materials
- Fudan University
- Shanghai 200438
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9
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Ozawa H, Fukushima K, Urayama A, Arakawa H. Efficient ruthenium sensitizer with an extended π-conjugated terpyridine ligand for dye-sensitized solar cells. Inorg Chem 2015; 54:8887-9. [PMID: 26322629 DOI: 10.1021/acs.inorgchem.5b01640] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A ruthenium sensitizer with an extended π-conjugated terpyridine (TUS-42) has been synthesized for dye-sensitized solar cells (DSCs). Upon extension of the π-conjugated system of the terpyridine ligand, the conversion efficiency of the DSC with TUS-42 improved successfully to 10.7%, which is almost comparable to that of one of the most efficient ruthenium sensitizers (Black dye). Interestingly, an extremely large short-circuit current density (Jsc) value (22.7 mA/cm(2)) was obtained in the DSC with TUS-42 even though the amount of dye adsorption to the TiO2 photoelectrode is relatively small.
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Affiliation(s)
- Hironobu Ozawa
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science , 12-1 Ichigaya-Funagawara, Shinjuku, Tokyo 162-0826, Japan
| | - Kei Fukushima
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science , 12-1 Ichigaya-Funagawara, Shinjuku, Tokyo 162-0826, Japan
| | - Ayako Urayama
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science , 12-1 Ichigaya-Funagawara, Shinjuku, Tokyo 162-0826, Japan
| | - Hironori Arakawa
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science , 12-1 Ichigaya-Funagawara, Shinjuku, Tokyo 162-0826, Japan
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