1
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M M S, Pradhan SC, George AS, P R N, Mishra RK, John J, Soman S. Exploring the synergy between copper electrolytes and molecularly engineered thiocyanate-free cyclometalated ruthenium sensitizers for dye-sensitized solar cells. Photochem Photobiol 2024; 100:1127-1139. [PMID: 38922730 DOI: 10.1111/php.13984] [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: 02/15/2024] [Revised: 06/02/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024]
Abstract
Two novel cyclometalated ruthenium complexes, RC-4 and RC-5, featuring 1-phenylisoquinoline and phenyl quinazoline as ancillary ligands, respectively, were synthesized to investigate their viability with the environmentally friendly copper (Cu) redox mediator, [Cu(bpye)2]2+/+. The modification of the ligand environment resulted in variations in the energetics, photophysical properties, and photovoltaic performance of RC-4 and RC-5 sensitizers. Despite RC-5 sensitizer possessing a more positive ground state potential of 1.19 V versus the NHE, the RC-4 sensitizer, with a lower HOMO level of 0.72 V versus NHE, exhibited superior photovoltaic performance along with the Cu electrolyte, attributed to its enhanced light harvesting ability, improved lifetime and reduced back electron transfer, contributing to higher Jsc, Voc, and PCE.
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Affiliation(s)
- Sruthi M M
- Centre for Sustainable Energy Technologies (C-SET), CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Sourava C Pradhan
- Centre for Sustainable Energy Technologies (C-SET), CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Andrew Simon George
- Centre for Sustainable Energy Technologies (C-SET), CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Nitha P R
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, India
| | - Rakesh K Mishra
- Department of Chemistry, National Institute of Technology, Srinagar, Uttarakhand, India
| | - Jubi John
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, India
| | - Suraj Soman
- Centre for Sustainable Energy Technologies (C-SET), CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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2
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Behera AK, Sahu PN, Sahu GC, Sen A. A quantum chemical study: thoughtful exploration for optimal donors in Y-type dual donor-based dye sensitizers. Phys Chem Chem Phys 2023; 25:26341-26352. [PMID: 37750227 DOI: 10.1039/d3cp03899h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
This research explores the influence of different dual donors on the effectiveness of dye sensitizers. We selected 35 diverse donors to construct Y-type dual donor-based dyes, connecting them with thiophene as the π-spacer and cyanoacrylic acid as the acceptor. Density functional theory calculations indicate that these dual donor-based dyes exhibit superior optoelectronic properties compared to their single donor counterparts. Notably, significant variations in charge distribution among the different dual donors affect their donor capabilities. Our calculations specifically highlight the enhanced thermodynamic parameters, including light harvesting efficiency (LHE), the free energy of dye injection (ΔGinject), and regeneration (ΔGreg), for donor moieties containing nitrogen atoms, such as NS-3 (N,N-dimethylaniline), NS-5 (diphenylamine), NS-6 (triphenylamine), and NS-8 (4-methoxy-N-(4-methoxyphenyl)-N-phenylaniline). These results suggest that nitrogen-containing donor moieties act as promising candidates for donors for efficient dye sensitizers. However, further experimental validation in the near future will be necessary to confirm our findings.
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Affiliation(s)
- Anil Kumar Behera
- Department of Chemistry (CMDD Lab), GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam-530045, AP, India.
| | - Preeti Nanda Sahu
- Department of Chemistry (CMDD Lab), GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam-530045, AP, India.
| | - Ganesh Chandra Sahu
- Department of Chemistry (CMDD Lab), GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam-530045, AP, India.
| | - Anik Sen
- Department of Chemistry (CMDD Lab), GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam-530045, AP, India.
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3
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Gao H, Yu R, Ma Z, Gong Y, Zhao B, Lv Q, Tan Z. Recent advances of organometallic complexes in emerging photovoltaics. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210592] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Huaizhi Gao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Runnan Yu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Zongwen Ma
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Yongshuai Gong
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Biao Zhao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Qianglong Lv
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Zhan'ao Tan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
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4
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Kellett CW, Berlinguette CP. Defining Direct Orbital Pathways for Intermolecular Electron Transfer Using Sensitized Semiconducting Surfaces. Inorg Chem 2020; 59:14696-14705. [PMID: 32997937 DOI: 10.1021/acs.inorgchem.0c02251] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
High-performance electronic materials and redox catalysts often rely on fast rates of intermolecular electron transfer (IET). Maximizing IET rates requires strong electronic coupling (HDA) between the electron donor and acceptor, yet universal structure-property relationships governing HDA in outer-sphere IET reactions have yet to be developed. For ground-state IET reactions, HDA is reasonably approximated by the extent of overlap between the frontier donor and acceptor orbitals involved in the electron-transfer reaction. Intermolecular interactions that encourage overlap between these orbitals, thereby creating a direct orbital pathway for IET, have a strong impact on HDA and, by extension, the IET rates. In this Forum Article, we present a set of intuitive molecular design strategies employing this direct orbital pathway principle to maximize HDA for IET reactions. We highlight how the careful design of redox-active molecules anchored to solid semiconducting substrates provides a powerful experimental platform for elucidating how electronic structure and specific intermolecular interactions affect IET reactions.
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Affiliation(s)
- Cameron W Kellett
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Curtis P Berlinguette
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada.,Department of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada.,Stewart Blusson Quantum Matter Institute, The University of British Columbia, 2355 East Mall, Vancouver, British Columbia V6T 1Z4, Canada.,Canadian Institute for Advanced Research, 661 University Avenue, Toronto, Ontario M5G 1M1, Canada
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5
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Munshi MU, Martens J, Berden G, Oomens J. Vibrational Spectra of the Ruthenium-Tris-Bipyridine Dication and Its Reduced Form in Vacuo. J Phys Chem A 2020; 124:2449-2459. [PMID: 32119552 PMCID: PMC7104246 DOI: 10.1021/acs.jpca.0c00888] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Experimental IR spectra
in the 500–1850 cm–1 fingerprint frequency
range are presented for the isolated, gaseous
redox pair ions [Ru(bpy)3]2+, and [Ru(bpy)3]+, where bpy = 2,2′-bipyridine. Spectra
are obtained using the FELIX free-electron laser and a quadrupole
ion trap mass spectrometer. The 2+ complex is generated by electrospray
ionization and the charge-reduced radical cation is produced by gas-phase
one-electron reduction in an ion–ion reaction with the fluoranthene
radical anion. Experimental spectra are compared against computed
spectra predicted by density functional theory (DFT) using different
levels of theory. For the closed-shell [Ru(bpy)3]2+ ion, the match between experimental and computed IR spectra is very
good; however, this is not the case for the charge-reduced [Ru(bpy)3]+ ion, which demands additional theoretical investigation.
When using the hybrid B3LYP functional, we observe that better agreement
with experiment is obtained upon reduction of the Hartree–Fock
exact-exchange contribution from 20% to about 14%. Additionally, calculations
using the M06 functional appear to be promising in terms of the prediction
of IR spectra; however, it is unclear if the correct electronic structure
is obtained. The M06 and B3LYP functionals indicate that the added
electron in [Ru(bpy)3]+ is delocalized over
the three bpy ligands, while the long-range corrected LC-BLYP and
the CAM-B3LYP functionals show it to be more localized on a single
bpy ligand. Although these latter levels of theory fail to reproduce
the experimentally observed IR frequencies, one may argue that the
unusually large bandwidths observed in the spectrum are due to the
fluxional character of a complex with the added electron not symmetrically
distributed over the ligands. The experimental IR spectra presented
here can serve as benchmark for further theoretical investigations.
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Affiliation(s)
- Musleh Uddin Munshi
- Institute for Molecules and Materials, FELIX Laboratory, Radboud University, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
| | - Jonathan Martens
- Institute for Molecules and Materials, FELIX Laboratory, Radboud University, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
| | - Giel Berden
- Institute for Molecules and Materials, FELIX Laboratory, Radboud University, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
| | - Jos Oomens
- Institute for Molecules and Materials, FELIX Laboratory, Radboud University, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands.,University of Amsterdam, Science Park 904, 1098XH Amsterdam, The Netherlands
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6
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Lavrova MA, Mishurinskiy SA, Smirnov DE, Kalle P, Krivogina EV, Kozyukhin SA, Emets VV, Mariasina SS, Dolzhenko VD, Bezzubov SI. Cyclometalated Ru(ii) complexes with tunable redox and optical properties for dye-sensitized solar cells. Dalton Trans 2020; 49:16935-16945. [DOI: 10.1039/d0dt03564e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclometalated Ru(ii) complexes with 2-arylbenzimidazoles demonstrate enhanced light-harvesting properties and good characteristics in dye-sensitized solar cells.
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Affiliation(s)
| | | | - Daniil E. Smirnov
- Lomonosov Moscow State University
- Moscow
- Russia
- N.S. Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
| | - Paulina Kalle
- Lomonosov Moscow State University
- Moscow
- Russia
- N.S. Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
| | - Ekaterina V. Krivogina
- N.S. Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Sergey A. Kozyukhin
- N.S. Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Viktor V. Emets
- Frumkin Institute of Physical Chemistry and Electrochemistry
- Russian Academy of Sciences
- Moscow 119071
- Russia
| | | | - Vladimir D. Dolzhenko
- Lomonosov Moscow State University
- Moscow
- Russia
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
| | - Stanislav I. Bezzubov
- N.S. Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
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7
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Ballester FJ, Ortega E, Bautista D, Santana MD, Ruiz J. Ru(ii) photosensitizers competent for hypoxic cancers via green light activation. Chem Commun (Camb) 2020; 56:10301-10304. [DOI: 10.1039/d0cc02417a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ru(ii) complexes exhibit phototherapeutic indexes higher than 750 in cancer HeLa cells with low nanomolar IC50 values under low doses of non-harmful green light and are active in normoxia and hypoxia conditions.
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Affiliation(s)
- Francisco J. Ballester
- Departamento de Química Inorgánica
- Universidad de Murcia
- and Biomedical Research Institute of Murcia (IMIB-Arrixaca)
- E-30071 Murcia
- Spain
| | - Enrique Ortega
- Departamento de Química Inorgánica
- Universidad de Murcia
- and Biomedical Research Institute of Murcia (IMIB-Arrixaca)
- E-30071 Murcia
- Spain
| | | | - M. Dolores Santana
- Departamento de Química Inorgánica
- Universidad de Murcia
- and Biomedical Research Institute of Murcia (IMIB-Arrixaca)
- E-30071 Murcia
- Spain
| | - José Ruiz
- Departamento de Química Inorgánica
- Universidad de Murcia
- and Biomedical Research Institute of Murcia (IMIB-Arrixaca)
- E-30071 Murcia
- Spain
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8
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Aramburu-Trošelj BM, Oviedo PS, Pieslinger GE, Hodak JH, Baraldo LM, Guldi DM, Cadranel A. A Hole Delocalization Strategy: Photoinduced Mixed-Valence MLCT States Featuring Extended Lifetimes. Inorg Chem 2019; 58:10898-10904. [PMID: 31361126 DOI: 10.1021/acs.inorgchem.9b01254] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bimetallic trans-[RuII(tpm)(bpy)(μNC)RuII(L)4(CN)]2+, where bpy is 2,2'-bipyridine, tpm is tris(1-pyrazolyl)methane and L = 4-methoxypyridine (MeOpy) or pyridine (py), was examined using ultrafast vis-NIR transient absorption spectroscopy. Of great relevance are the longest-lived excited states in the form of strongly coupled photoinduced mixed-valence systems, which exhibit intense photoinduced absorptions in the NIR and are freely tunable by the judicious choice of the coordination spheres of the metallic ions. Using the latter strategy, we succeeded in tailoring the excited state lifetimes of bimetallic complexes and, in turn, achieving significantly longer values relative to related monometallic complexes. Notable is the success in extending the lifetimes, when considering the higher density of vibrational states, as they are expected to facilitate nonradiative ground-state recovery.
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Affiliation(s)
- Bruno M Aramburu-Trošelj
- Universidad de Buenos Aires , Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica, Analítica y Química Física , Pabellón 2, Ciudad Universitaria, C1428EHA , Buenos Aires , Argentina.,CONICET - Universidad de Buenos Aires , Instituto de Química-Física de Materiales, Medio Ambiente y Energía (INQUIMAE) , Pabellón 2, Ciudad Universitaria, C1428EHA , Buenos Aires , Argentina
| | - Paola S Oviedo
- Universidad de Buenos Aires , Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica, Analítica y Química Física , Pabellón 2, Ciudad Universitaria, C1428EHA , Buenos Aires , Argentina.,CONICET - Universidad de Buenos Aires , Instituto de Química-Física de Materiales, Medio Ambiente y Energía (INQUIMAE) , Pabellón 2, Ciudad Universitaria, C1428EHA , Buenos Aires , Argentina
| | - German E Pieslinger
- Universidad de Buenos Aires , Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica, Analítica y Química Física , Pabellón 2, Ciudad Universitaria, C1428EHA , Buenos Aires , Argentina.,CONICET - Universidad de Buenos Aires , Instituto de Química y Fisicoquímica Biológicas (IQUIFIB) , Junín 956 , C1113AAD , Buenos Aires , Argentina
| | - José H Hodak
- Universidad de Buenos Aires , Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica, Analítica y Química Física , Pabellón 2, Ciudad Universitaria, C1428EHA , Buenos Aires , Argentina.,CONICET - Universidad de Buenos Aires , Instituto de Química-Física de Materiales, Medio Ambiente y Energía (INQUIMAE) , Pabellón 2, Ciudad Universitaria, C1428EHA , Buenos Aires , Argentina
| | - Luis M Baraldo
- Universidad de Buenos Aires , Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica, Analítica y Química Física , Pabellón 2, Ciudad Universitaria, C1428EHA , Buenos Aires , Argentina.,CONICET - Universidad de Buenos Aires , Instituto de Química-Física de Materiales, Medio Ambiente y Energía (INQUIMAE) , Pabellón 2, Ciudad Universitaria, C1428EHA , Buenos Aires , Argentina
| | - Dirk M Guldi
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials , Friedrich-Alexander-Universität Erlangen-Nürnberg , 91058 , Erlangen , Germany
| | - Alejandro Cadranel
- Universidad de Buenos Aires , Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica, Analítica y Química Física , Pabellón 2, Ciudad Universitaria, C1428EHA , Buenos Aires , Argentina.,CONICET - Universidad de Buenos Aires , Instituto de Química-Física de Materiales, Medio Ambiente y Energía (INQUIMAE) , Pabellón 2, Ciudad Universitaria, C1428EHA , Buenos Aires , Argentina.,Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials , Friedrich-Alexander-Universität Erlangen-Nürnberg , 91058 , Erlangen , Germany
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9
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McCain J, Colón KL, Barrett PC, Monro SMA, Sainuddin T, Roque Iii J, Pinto M, Yin H, Cameron CG, McFarland SA. Photophysical Properties and Photobiological Activities of Ruthenium(II) Complexes Bearing π-Expansive Cyclometalating Ligands with Thienyl Groups. Inorg Chem 2019; 58:10778-10790. [PMID: 31386351 DOI: 10.1021/acs.inorgchem.9b01044] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A new family of cyclometalated ruthenium(II) complexes [Ru(N^N)2(C^N)]+ derived from the π-extended benzo[h]imidazo[4,5-f]quinolone ligand appended with thienyl groups (n = 1-4, compounds 1-4) was prepared and its members were characterized for their chemical, photophysical, and photobiological properties. The lipophilicities of 1-4, determined as octanol-water partition coefficients (log Po/w), were positive and increased with the number of thienyl units. The absorption and emission bands of the C^N compounds were red-shifted by up to 200 nm relative to the analogous Ru(II) diimine systems. All of the complexes exhibited dual emission with the intraligand fluorescence (1IL, C^N-based) shifting to lower energies with increasing n and the metal-to-ligand charge transfer phosphorescence (3MLCT, N^N-based) remaining unchanged. Compounds 1-3 exhibited excited state absorption (ESA) profiles consistent with lowest-lying 3MLCT states when probed by nanosecond transient absorption (TA) spectroscopy with 532 nm excitation and had contributions from 1IL(C^N) states with 355 nm excitation. These assignments were supported by the lifetimes observed (<10 ns for the 1IL states and around 20 ns for the 3MLCT states) as well as a noticeable ESA for 3 with 355 nm excitation that did not occur with 532 nm excitation. Compound 4 was the only member of the family with two 3MLCT emissive lifetimes (15, 110 ns), and the TA spectra collected with both 355 and 532 nm excitation was assigned to the 3IL state, which was corroborated by its 4-6 μs lifetime. The ESA for 4 had a rise time of approximately 10 ns and an initial decay of 110 ns, which suggests a possible 3MLCT-3IL excited state equilibrium that results in delayed emission from the 3MLCT state. Compound 4 was nontoxic toward human skin melanoma cells (SKMEL28) in the dark (EC50 = >300 μM); 1-3 were cytotoxic and yielded EC50 values between 1 and 20 μM. The photocytotoxicites with visible light ranged from 87 nM with a phototherapeutic index (PI) of 13 for 1 to approximately 1 μM (PI = >267) for 4. With red light, EC50 values varied from 270 nM (PI = 21) for 3 to 12 μM for 4 (PI = >25). The larger PIs for 4, especially with visible light, were attributed to the much lower dark cytotoxicity for this compound. Because the dark cytotoxicity contributes substantially to the observed photocytotoxicity for 1-3, it was not possible to assess whether the 3IL state of 4 led to a much more potent phototoxic mechanism in the absence of dark toxicity. There was no stark contrast in cellular uptake and accumulation by laser scanning confocal and differential interference contrast microscopy to explain the large differences in dark toxicities between 1-3 and 4. Nevertheless, the study highlights a new family of Ru(II) C^N complexes where π-conjugation beyond a certain point results in low dark cytotoxicity with high photocytotoxicity, opposing the notion that cyclometalated Ru(II) systems are too toxic to be phototherapeutic agents.
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Affiliation(s)
- Julia McCain
- Department of Chemistry , Acadia University , Wolfville , Nova Scotia B4P 2R6 , Canada
| | - Katsuya L Colón
- Department of Chemistry and Biochemistry , The University of North Carolina at Greensboro , Greensboro , North Carolina 27402 , United States
| | - Patrick C Barrett
- Department of Chemistry and Biochemistry , The University of North Carolina at Greensboro , Greensboro , North Carolina 27402 , United States
| | - Susan M A Monro
- Department of Chemistry , Acadia University , Wolfville , Nova Scotia B4P 2R6 , Canada
| | - Tariq Sainuddin
- Department of Chemistry , Acadia University , Wolfville , Nova Scotia B4P 2R6 , Canada
| | - John Roque Iii
- Department of Chemistry and Biochemistry , The University of North Carolina at Greensboro , Greensboro , North Carolina 27402 , United States
| | - Mitch Pinto
- Department of Chemistry , Acadia University , Wolfville , Nova Scotia B4P 2R6 , Canada
| | - Huimin Yin
- Department of Chemistry , Acadia University , Wolfville , Nova Scotia B4P 2R6 , Canada
| | - Colin G Cameron
- Department of Chemistry and Biochemistry , The University of North Carolina at Greensboro , Greensboro , North Carolina 27402 , United States
| | - Sherri A McFarland
- Department of Chemistry , Acadia University , Wolfville , Nova Scotia B4P 2R6 , Canada.,Department of Chemistry and Biochemistry , The University of North Carolina at Greensboro , Greensboro , North Carolina 27402 , United States
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10
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Chen Y, Chen W, Qiao Y, Zhou G. B
2
N
2
‐Embedded Polycyclic Aromatic Hydrocarbons with Furan and Thiophene Derivatives Functionalized in Crossed Directions. Chemistry 2019; 25:9326-9338. [DOI: 10.1002/chem.201901782] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Indexed: 01/06/2023]
Affiliation(s)
- Yijing Chen
- Lab of Advanced MaterialsState Key Laboratory of Molecular Engineering of PolymersFudan University Shanghai 200438 P. R. China
| | - Weinan Chen
- Lab of Advanced MaterialsState Key Laboratory of Molecular Engineering of PolymersFudan University Shanghai 200438 P. R. China
| | - Yanjun Qiao
- Lab of Advanced MaterialsState Key Laboratory of Molecular Engineering of PolymersFudan University Shanghai 200438 P. R. China
| | - Gang Zhou
- Lab of Advanced MaterialsState Key Laboratory of Molecular Engineering of PolymersFudan University Shanghai 200438 P. R. China
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11
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Shao JY, Zhong YW. Stabilization of a Cyclometalated Ruthenium Sensitizer on Nanocrystalline TiO 2 by an Electrodeposited Covalent Layer. Inorg Chem 2019; 58:3509-3517. [PMID: 30758195 DOI: 10.1021/acs.inorgchem.9b00092] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A cyclometalated ruthenium sensitizer 3 containing a triphenylamine unit was synthesized and immobilized on a nanocrystalline TiO2 surface. By using oxidative electrochemical deposition, a covalent layer of a related cyclometalated ruthenium complex 2 was coupled to the top of dye 3. Electrochemical studies suggested that complex 2 was immobilized on the TiO2/3 film surface by a tetraphenylbenzidine linker to form a dimer-like structure. The immobilization of 3 and 2 was further supported by absorption spectral analysis. The resulting electrodeposited TiO2/(3+2) film displays significantly enhanced sensitizer stabilization toward basic aqueous NaOH solution with respect to the original TiO2/3 film. The dye-sensitized solar cells with the TiO2/(3+2) photoanode display a power conversion efficiency of 4.4%, which is slightly inferior to that with the TiO2/3 film (5.1%) under the same measurement conditions.
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Affiliation(s)
- Jiang-Yang Shao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
| | - Yu-Wu Zhong
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China.,School of Chemical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
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12
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Soellner J, Císařová I, Strassner T. Ruthenium(II) Bipyridyl Complexes with C∧C* Cyclometalated Mesoionic Carbene Ligands. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00637] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Johannes Soellner
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University Prague, 128 43 Praha 2, Czech Republic
| | - Thomas Strassner
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
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13
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Zerón P, Carmona‐Espíndola J, Flores‐Leonar MM, Gázquez JL, González I, Amador‐Bedolla C, Ugalde‐Saldívar VM. A Synergetic Experimental and Computational Approach Towards a Better Comprehension of Redox Reactions of N3 Dye [cis‐bis(Isothiocyanato)‐Ruthenium(II)‐bis(2, 2’‐Bipyridine‐4,4’‐Dicarboxylic Acid] in Solution. ChemistrySelect 2018. [DOI: 10.1002/slct.201800716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Paulino Zerón
- Facultad de QuímicaUniversidad Nacional Autónoma de MéxicoAv. Universidad 3000, Coyoacán CDMX 04510 México
| | - Javier Carmona‐Espíndola
- Departamento de QuímicaCONACYT-Universidad Autónoma Metropolitana–Iztapalapa, Av. San Rafael Atlixco 186 CDMX 09340 México
| | - Martha M. Flores‐Leonar
- Facultad de QuímicaUniversidad Nacional Autónoma de MéxicoAv. Universidad 3000, Coyoacán CDMX 04510 México
| | - José L. Gázquez
- Departamento de QuímicaUniversidad Autónoma Metropolitana–Iztapalapa, Av. San Rafael Atlixco 186 CDMX 09340 México
| | - Ignacio González
- Departamento de QuímicaUniversidad Autónoma Metropolitana–Iztapalapa, Av. San Rafael Atlixco 186 CDMX 09340 México
| | - Carlos Amador‐Bedolla
- Facultad de QuímicaUniversidad Nacional Autónoma de MéxicoAv. Universidad 3000, Coyoacán CDMX 04510 México
| | - Víctor M. Ugalde‐Saldívar
- Facultad de QuímicaUniversidad Nacional Autónoma de MéxicoAv. Universidad 3000, Coyoacán CDMX 04510 México
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14
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15
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Thoresen EM, Balcells D, Øien-Ødegaard S, Hylland KT, Tilset M, Amedjkouh M. Cyclometalated ruthenium complexes with carboxylated ligands from a combined experimental/computational perspective. Dalton Trans 2018; 47:2589-2601. [PMID: 29384547 DOI: 10.1039/c7dt03935b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The syntheses and characterization of nine new cyclometalated ruthenium complexes are reported. These structures consist of Ru(ii) with bipyridine and phenylpyridine ligands which are substituted with ester or carboxylate groups. Two of the complexes were extensively studied and their properties were compared to those of two previously reported structures. The identities of the compounds were confirmed by NMR, HR-MS and single crystal XRD, and the electronic properties were investigated by UV-Vis spectroscopy. DFT and TD-DFT calculations showed that the intense absorbances in the visible region of the spectrum of these cyclometalated complexes are due to electronic excitations to virtual orbitals located on the carboxylated ligands. These results indicate that the compounds are promising candidates as sensitizers for more efficient photocatalysis with sunlight. Further, the carboxylate groups should facilitate their use as linkers in metal-organic frameworks.
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Affiliation(s)
- Eirik Mydske Thoresen
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315 Oslo, Norway. and Center for Materials Science and Nanotechnology (SMN), Faculty of Mathematics and Natural Sciences, University of Oslo, P.O. Box 1126, Blindern, 0318 Oslo, Norway.
| | - David Balcells
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315 Oslo, Norway. and Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315 Oslo, Norway
| | - Sigurd Øien-Ødegaard
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315 Oslo, Norway. and Center for Materials Science and Nanotechnology (SMN), Faculty of Mathematics and Natural Sciences, University of Oslo, P.O. Box 1126, Blindern, 0318 Oslo, Norway.
| | - Knut Tormodssønn Hylland
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315 Oslo, Norway. and Center for Materials Science and Nanotechnology (SMN), Faculty of Mathematics and Natural Sciences, University of Oslo, P.O. Box 1126, Blindern, 0318 Oslo, Norway.
| | - Mats Tilset
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315 Oslo, Norway. and Center for Materials Science and Nanotechnology (SMN), Faculty of Mathematics and Natural Sciences, University of Oslo, P.O. Box 1126, Blindern, 0318 Oslo, Norway.
| | - Mohamed Amedjkouh
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315 Oslo, Norway. and Center for Materials Science and Nanotechnology (SMN), Faculty of Mathematics and Natural Sciences, University of Oslo, P.O. Box 1126, Blindern, 0318 Oslo, Norway.
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16
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Motley TC, Troian-Gautier L, Brennaman MK, Meyer GJ. Excited-State Decay Pathways of Tris(bidentate) Cyclometalated Ruthenium(II) Compounds. Inorg Chem 2018; 56:13579-13592. [PMID: 29068224 DOI: 10.1021/acs.inorgchem.7b02321] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis, electrochemistry, and photophysical characterization are reported for 11 tris(bidentate) cyclometalated ruthenium(II) compounds, [Ru(N^N)2(C^N)]+. The electrochemical and photophysical properties were varied by the addition of substituents on the 2,2'-bipyridine, N^N, and 2-phenylpyridine, C^N, ligands with different electron-donating and -withdrawing groups. The systematic tuning of these properties offered a tremendous opportunity to investigate the origin of the rapid excited-state decay for these cyclometalated compounds and to probe the accessibility of the dissociative, ligand-field (LF) states from the metal-to-ligand charge-transfer (MLCT) excited state. The photoluminescence quantum yield for [Ru(N^N)2(C^N)]+ increased from 0.0001 to 0.002 as more electron-withdrawing substituents were added to C^N. An analogous substituent dependence was observed for the excited-state lifetimes, τobs, which ranged from 3 to 40 ns in neat acetonitrile, significantly shorter than those for their [Ru(N^N)3]2+ analogues. The excited-state decay for [Ru(N^N)2(C^N)]+ was accelerated because of an increased vibronic overlap between the ground- and excited-state wavefunctions rather than an increased electronic coupling as revealed by a comparison of the Franck-Condon factors. The radiative (kr) and non-radiative (knr) rate constants of excited-state decay were determined to be on the order of 104 and 107-108 s-1, respectively. For sets of [Ru(N^N)2(C^N)]+ compounds functionalized with the same N^N ligand, knr scaled with excited-state energy in accordance with the energy gap law. Furthermore, an Arrhenius analysis of τobs for all of the compounds between 273 and 343 K was consistent with activated crossing into a single, fourth 3MLCT state under the conditions studied with preexponential factors on the order of 108-109 s-1 and activation energies between 300 and 1000 cm-1. This result provides compelling evidence that LF states are not significantly populated near room temperature unlike many ruthenium(II) polypyridyl compounds. On the basis of the underlying photophysics presented here for [Ru(N^N)2(C^N)]+, molecules of this type represent a robust class of compounds with built-in design features that should greatly enhance the molecular photostability necessary for photochemical and photoelectrochemical applications.
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Affiliation(s)
- Tyler C Motley
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Ludovic Troian-Gautier
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - M Kyle Brennaman
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Gerald J Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
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17
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Chen KY, Schauer PA, Patrick BO, Berlinguette CP. Correlating cobalt redox couples to photovoltage in the dye-sensitized solar cell. Dalton Trans 2018; 47:11942-11952. [DOI: 10.1039/c8dt01921e] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two sets of structurally analogous Co(iii/ii)-based redox mediators were incorporated in the dye-sensitized solar cells and a linear correlation was demonstrated between redox potential and photovoltage.
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Affiliation(s)
- Kitty Y. Chen
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Phil A. Schauer
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Brian O. Patrick
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Curtis P. Berlinguette
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
- Department of Chemical & Biological Engineering
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18
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Tamura R, Kono T, Mori S, Kimura M. Structural Effect of the Pendant Unit in Thiocyanate‐Free Ru
II
Sensitizers on the Dye‐Sensitized Solar Cell Performance. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rei Tamura
- Department of Chemistry and Materials Faculty of Textile Science and Technology Shinshu University 386‐8567 Ueda Japan
| | - Takahiro Kono
- Department of Chemistry and Materials Faculty of Textile Science and Technology Shinshu University 386‐8567 Ueda Japan
| | - Shogo Mori
- Department of Chemistry and Materials Faculty of Textile Science and Technology Shinshu University 386‐8567 Ueda Japan
| | - Mutsumi Kimura
- Department of Chemistry and Materials Faculty of Textile Science and Technology Shinshu University 386‐8567 Ueda Japan
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19
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Aghazada S, Ren Y, Wang P, Nazeeruddin MK. Effect of Donor Groups on the Performance of Cyclometalated Ruthenium Sensitizers in Dye-Sensitized Solar Cells. Inorg Chem 2017; 56:13437-13445. [DOI: 10.1021/acs.inorgchem.7b02164] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Sadig Aghazada
- Group for Molecular
Engineering of Functional Materials, Institute of Chemical Sciences
and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1950 Sion, Switzerland
| | - Yameng Ren
- Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University, 310028 Hangzhou, People’s Republic of China
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, People’s Republic of China
| | - Peng Wang
- Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University, 310028 Hangzhou, People’s Republic of China
| | - Mohammad Khaja Nazeeruddin
- Group for Molecular
Engineering of Functional Materials, Institute of Chemical Sciences
and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1950 Sion, Switzerland
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20
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Su R, Elmorsy MR, Abed M, Islam A, Lord M, Fadda AA, El-Shafei A. A Comparative Study on Two RuIIComplexes with Thiophene-Based Ancillary Ligands for High-Efficiency Dye-Sensitized Solar Cells. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700468] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Rui Su
- Polymer and Color Chemistry Program; North Carolina State University; 27695 Raleigh NC USA
| | - Mohamed R. Elmorsy
- Polymer and Color Chemistry Program; North Carolina State University; 27695 Raleigh NC USA
- Department of Chemistry; Faculty of Science; Mansoura University; El-Gomhoria Street 35516 Mansoura Egypt
| | - Mira Abed
- Polymer and Color Chemistry Program; North Carolina State University; 27695 Raleigh NC USA
| | - Ashraful Islam
- Photovoltaic Materials Unit; National Institute for Materials Science; 1-2-1 Sengen 305-0047 Tsukuba, Ibaraki Japan
| | - Meghan Lord
- Polymer and Color Chemistry Program; North Carolina State University; 27695 Raleigh NC USA
| | - Ahmed A. Fadda
- Department of Chemistry; Faculty of Science; Mansoura University; El-Gomhoria Street 35516 Mansoura Egypt
| | - Ahmed El-Shafei
- Polymer and Color Chemistry Program; North Carolina State University; 27695 Raleigh NC USA
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21
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Schleicher D, Leopold H, Borrmann H, Strassner T. Ruthenium(II) Bipyridyl Complexes with Cyclometalated NHC Ligands. Inorg Chem 2017; 56:7217-7229. [DOI: 10.1021/acs.inorgchem.7b00831] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David Schleicher
- Physikalische Organische
Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | - Hendrik Leopold
- Physikalische Organische
Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | - Horst Borrmann
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Thomas Strassner
- Physikalische Organische
Chemie, Technische Universität Dresden, 01069 Dresden, Germany
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22
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Palmitic acid and hexadecylamine molecules assdsorbed on titania surface in hybrid composites. Effect of surfactants using density functional theory. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Chen KY, Du C, Patrick BO, Berlinguette CP. High-Voltage Dye-Sensitized Solar Cells Mediated by [Co(2,2'-bipyrimidine) 3] z. Inorg Chem 2017; 56:2383-2386. [PMID: 28218525 DOI: 10.1021/acs.inorgchem.7b00082] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The cobalt complex [Co(2,2'-bipyrimidine)3](PF6)2 (Co-bpm) was tested as a redox mediator in the dye-sensitized solar cell. The measured photovoltages for the cells were in excess of 1 V, which is approximately 3-fold greater than that measured for devices where [Co(2,2'-bipyridine)3](PF6)2 (Co-bpy) was used as the redox mediator under the same experimental conditions. The root cause of this voltage enhancement is the CoIII/CoII redox potential for Co-bpm being positively shifted by 0.50 V relative to the Co-bpy mediator. This result highlights how the number and position of the N atoms in aromatic ligands can have a profound effect on the measured photovoltage.
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Affiliation(s)
- Kitty Y Chen
- Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Chuan Du
- Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Brian O Patrick
- Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Curtis P Berlinguette
- Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada.,Department of Chemical and Biological Engineering, University of British Columbia , 2360 East Mall, Vancouver, British Columbia V6T 1Z1, Canada
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24
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Zassowski P, Golba S, Skorka L, Szafraniec-Gorol G, Matussek M, Zych D, Danikiewicz W, Krompiec S, Lapkowski M, Slodek A, Domagala W. Spectroelectrochemistry of alternating ambipolar copolymers of 4,4′- and 2,2′-bipyridine isomers and quaterthiophene. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.01.076] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Gaiddon C, Pfeffer M. The Fate of Cycloruthenated Compounds: From C-H Activation to Innovative Anticancer Therapy. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601216] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Christian Gaiddon
- University of Strasbourg; U1113 Inserm; 3 av. Molière 67200 Strasbourg France
| | - Michel Pfeffer
- University of Strasbourg; UMR 7177 CNRS; 4, rue Blaise Pascal 67000 Strasbourg France
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26
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Ashraf S, Akhtar J, Siddiqi HM, El-Shafei A. Thiocyanate-free ruthenium(ii) sensitizers with a bi-imidazole ligand in dye-sensitized solar cells (DSSCs). NEW J CHEM 2017. [DOI: 10.1039/c7nj01363a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this study, tris-heteroleptic Ru(ii) sensitizers denoted as SD-15 and SD-16 with a 4,4′,5,5′-tetramethyl-1H,1′H-2,2′-bis-imidazole moiety as the ancillary ligand were designed, synthesized and characterized.
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Affiliation(s)
- Saba Ashraf
- Department of Chemistry
- Quaid-I-Azam University
- Islamabad 45320
- Pakistan
- Department of Textile Engineering
| | - Javeed Akhtar
- Department of Physics
- Polymers & Materials Synthesis Lab (PMS)
- COMSATS
- Institute of Information Technology
- Chak Shahzad Islamabad
| | | | - Ahmed El-Shafei
- Department of Textile Engineering
- Chemistry & Science
- North Carolina State University
- Raleigh
- USA
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27
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Nguyen TD, Lin CH, Wu CG. Effect of the CF3 Substituents on the Charge-Transfer Kinetics of High-Efficiency Cyclometalated Ruthenium Sensitizers. Inorg Chem 2016; 56:252-260. [DOI: 10.1021/acs.inorgchem.6b02088] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- The-Duy Nguyen
- Department of Chemistry and Research Center for New Generation Photovoltaics, National Central University, Jhong-Li 32001, Taiwan, Republic of China
| | - Chun-Han Lin
- Department of Chemistry and Research Center for New Generation Photovoltaics, National Central University, Jhong-Li 32001, Taiwan, Republic of China
| | - Chun-Guey Wu
- Department of Chemistry and Research Center for New Generation Photovoltaics, National Central University, Jhong-Li 32001, Taiwan, Republic of China
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28
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Aghazada S, Gao P, Yella A, Marotta G, Moehl T, Teuscher J, Moser JE, De Angelis F, Grätzel M, Nazeeruddin MK. Ligand Engineering for the Efficient Dye-Sensitized Solar Cells with Ruthenium Sensitizers and Cobalt Electrolytes. Inorg Chem 2016; 55:6653-9. [PMID: 27322854 DOI: 10.1021/acs.inorgchem.6b00842] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Over the past 20 years, ruthenium(II)-based dyes have played a pivotal role in turning dye-sensitized solar cells (DSCs) into a mature technology for the third generation of photovoltaics. However, the classic I3(-)/I(-) redox couple limits the performance and application of this technique. Simply replacing the iodine-based redox couple by new types like cobalt(3+/2+) complexes was not successful because of the poor compatibility between the ruthenium(II) sensitizer and the cobalt redox species. To address this problem and achieve higher power conversion efficiencies (PCEs), we introduce here six new cyclometalated ruthenium(II)-based dyes developed through ligand engineering. We tested DSCs employing these ruthenium(II) complexes and achieved PCEs of up to 9.4% using cobalt(3+/2+)-based electrolytes, which is the record efficiency to date featuring a ruthenium-based dye. In view of the complicated liquid DSC system, the disagreement found between different characterizations enlightens us about the importance of the sensitizer loading on TiO2, which is a subtle but equally important factor in the electronic properties of the sensitizers.
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Affiliation(s)
- Sadig Aghazada
- Group for Molecular Engineering of Functional Materials, École Polytechnique Fédérale de Lausanne (EPFL) , CH-1950 Sion, Switzerland
| | - Peng Gao
- Group for Molecular Engineering of Functional Materials, École Polytechnique Fédérale de Lausanne (EPFL) , CH-1950 Sion, Switzerland
| | | | - Gabriele Marotta
- Computational Laboratory for Hybrid Organic Photovoltaics, Istituto CNR di Scienze e Tecnologie Molecolari , via Elce di Sotto 8, I-06123 Perugia, Italy.,Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia , via Elce di Sotto 8, I-06123 Perugia, Italy
| | | | | | | | - Filippo De Angelis
- Computational Laboratory for Hybrid Organic Photovoltaics, Istituto CNR di Scienze e Tecnologie Molecolari , via Elce di Sotto 8, I-06123 Perugia, Italy.,CompuNet, Instituto Italiano di Tecnologia , Via Morego 30, 16163 Genova, Italy
| | | | - Mohammad Khaja Nazeeruddin
- Group for Molecular Engineering of Functional Materials, École Polytechnique Fédérale de Lausanne (EPFL) , CH-1950 Sion, Switzerland
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29
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Sinopoli A, Wood CJ, Gibson EA, Elliott PIP. Hybrid Cyclometalated Iridium Coumarin Complex as a Sensitiser of Both n- and p-Type DSSCs. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600242] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Alessandro Sinopoli
- Department of Chemistry; University of Huddersfield; Queensgate HD1 3DH Huddersfield UK
| | - Christopher J. Wood
- School of Chemistry; University of Newcastle; Bedson Building NE1 7RU Newcastle upon Tyne UK
| | - Elizabeth A. Gibson
- School of Chemistry; University of Newcastle; Bedson Building NE1 7RU Newcastle upon Tyne UK
| | - Paul I. P. Elliott
- Department of Chemistry; University of Huddersfield; Queensgate HD1 3DH Huddersfield UK
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30
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Kreitner C, Mengel AKC, Lee TK, Cho W, Char K, Kang YS, Heinze K. Strongly Coupled Cyclometalated Ruthenium Triarylamine Chromophores as Sensitizers for DSSCs. Chemistry 2016; 22:8915-28. [DOI: 10.1002/chem.201601001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Christoph Kreitner
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg-University of Mainz; Duesbergweg 10-14 55128 Mainz Germany), Fax: (+49) 6131-39-27-277
- Graduate School Materials Science in Mainz; Staudingerweg 9 55128 Mainz Germany
| | - Andreas K. C. Mengel
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg-University of Mainz; Duesbergweg 10-14 55128 Mainz Germany), Fax: (+49) 6131-39-27-277
| | - Tae Kyung Lee
- The Department of Energy Engineering and Center for; Next Generation Dye-Sensitized Solar Cells; Hanyang University; 222 Wangsimni-ro, Seongdong-gu Seoul 133-791 Korea
| | - Woohyung Cho
- The Department of Energy Engineering and Center for; Next Generation Dye-Sensitized Solar Cells; Hanyang University; 222 Wangsimni-ro, Seongdong-gu Seoul 133-791 Korea
| | - Kookheon Char
- The National Creative Research Initiative Center for Intelligent; Hybrids, School of Chemical and Biological Engineering, Seoul; National University; 1 Gwanak-ro, Gwanak-gu Seoul 151-744 Korea
| | - Yong Soo Kang
- The Department of Energy Engineering and Center for; Next Generation Dye-Sensitized Solar Cells; Hanyang University; 222 Wangsimni-ro, Seongdong-gu Seoul 133-791 Korea
| | - Katja Heinze
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg-University of Mainz; Duesbergweg 10-14 55128 Mainz Germany), Fax: (+49) 6131-39-27-277
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31
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Biswas AK, Barik S, Das A, Ganguly B. Does the position of the electron-donating nitrogen atom in the ring system influence the efficiency of a dye-sensitized solar cell? A computational study. J Mol Model 2016; 22:121. [PMID: 27155868 DOI: 10.1007/s00894-016-2976-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 04/05/2016] [Indexed: 12/01/2022]
Abstract
We have reported a number of new metal-free organic dyes (2-6) that have cyclic asymmetric benzotripyrrole derivatives as donor groups with peripheral nitrogen atoms in the ring, fluorine and thiophene groups as π-spacers, and a cyanoacrylic acid acceptor group. Density functional theory (DFT) and time-dependent DFT (TD-DFT) calculations were employed to examine the influence of the position of the donor nitrogen atom and π-conjugation on solar cell performance. The calculated electron-injection driving force (ΔG inject), electron-regeneration driving force (ΔG regen), light-harvesting efficiency (LHE), dipole moment (μ normal), and number of electrons transferred (∆q) indicate that dyes 3, 4, and 6 have significantly higher efficiencies than reference dye 1, which exhibits high efficiency. We also extended our comparison to some other reported dyes, 7-9, which have a donor nitrogen atom in the middle of the ring system. The computed results suggest that dye 6 possesses a higher incident photon to current conversion efficiency (IPCE) than reported dyes 7-9. Thus, the use of donor groups with peripheral nitrogen atoms appears to lead to more efficient dyes than those in which the nitrogen atom is present in the middle of the donor ring system. Graphical Abstract The locations of the nitrogen atoms in the donor groups in the designed dye molecules have an important influence on DSSC efficiency.
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Affiliation(s)
- Abul Kalam Biswas
- Computation and Simulation Unit (Analytical Discipline and Centralized Instrument Facility), CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
- CSIR-Central Salt and Marine Chemicals Research Institute, Academy of Scientific and Innovative Research, Bhavnagar, Gujarat, 364002, India
| | - Sunirmal Barik
- Computation and Simulation Unit (Analytical Discipline and Centralized Instrument Facility), CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
| | - Amitava Das
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune, 411008, India.
- CSIR-National Chemical Laboratory, Academy of Scientific and Innovative Research, Pune, 411008, India.
| | - Bishwajit Ganguly
- Computation and Simulation Unit (Analytical Discipline and Centralized Instrument Facility), CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India.
- CSIR-Central Salt and Marine Chemicals Research Institute, Academy of Scientific and Innovative Research, Bhavnagar, Gujarat, 364002, India.
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32
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Lu ZZ, Peng JD, Wu AK, Lin CH, Wu CG, Ho KC, Lin YC, Lu KL. Heteroleptic Ruthenium Sensitizers with Hydrophobic Fused-Thiophenes for Use in Efficient Dye-Sensitized Solar Cells. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501321] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Schleicher D, Tronnier A, Leopold H, Borrmann H, Strassner T. Unusual dimer formation of cyclometalated ruthenium NHC p-cymene complexes. Dalton Trans 2016; 45:3260-3. [DOI: 10.1039/c6dt00100a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstraction of a chloride ion in p-cymene ruthenium(ii) complexes bearing cyclometalated NHC ligands selectively leads to the formation of mono-ion-bridged ruthenium dimers.
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Affiliation(s)
- David Schleicher
- Physikalische Organische Chemie
- Technische Universität Dresden
- 01069 Dresden
- Germany
| | - Alexander Tronnier
- Physikalische Organische Chemie
- Technische Universität Dresden
- 01069 Dresden
- Germany
| | - Hendrik Leopold
- Physikalische Organische Chemie
- Technische Universität Dresden
- 01069 Dresden
- Germany
| | - Horst Borrmann
- Max-Planck-Institut für Chemische Physik fester Stoffe
- 01187 Dresden
- Germany
| | - Thomas Strassner
- Physikalische Organische Chemie
- Technische Universität Dresden
- 01069 Dresden
- Germany
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34
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Sainuddin T, McCain J, Pinto M, Yin H, Gibson J, Hetu M, McFarland SA. Organometallic Ru(II) Photosensitizers Derived from π-Expansive Cyclometalating Ligands: Surprising Theranostic PDT Effects. Inorg Chem 2015; 55:83-95. [DOI: 10.1021/acs.inorgchem.5b01838] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Tariq Sainuddin
- Department of Chemistry, Acadia University, Wolfville, Nova Scotia B4P 2R6, Canada
| | - Julia McCain
- Department of Chemistry, Acadia University, Wolfville, Nova Scotia B4P 2R6, Canada
| | - Mitch Pinto
- Department of Chemistry, Acadia University, Wolfville, Nova Scotia B4P 2R6, Canada
| | - Huimin Yin
- Department of Chemistry, Acadia University, Wolfville, Nova Scotia B4P 2R6, Canada
| | - Jordan Gibson
- Department of Chemistry, Acadia University, Wolfville, Nova Scotia B4P 2R6, Canada
| | - Marc Hetu
- Department of Chemistry, Acadia University, Wolfville, Nova Scotia B4P 2R6, Canada
| | - Sherri A. McFarland
- Department of Chemistry, Acadia University, Wolfville, Nova Scotia B4P 2R6, Canada
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35
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Li JY, Lee C, Chen CY, Lee WL, Ma R, Wu CG. Diastereoisomers of Ruthenium Dyes with Unsymmetric Ligands for DSC: Fundamental Chemistry and Photovoltaic Performance. Inorg Chem 2015; 54:10483-9. [DOI: 10.1021/acs.inorgchem.5b01967] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jheng-Ying Li
- Department of Chemistry and ‡Research Center for New Generation
Photovoltaics, National Central University, Jhong-Li 32001, Taiwan, ROC
| | - Chia Lee
- Department of Chemistry and ‡Research Center for New Generation
Photovoltaics, National Central University, Jhong-Li 32001, Taiwan, ROC
| | - Chia-Yuan Chen
- Department of Chemistry and ‡Research Center for New Generation
Photovoltaics, National Central University, Jhong-Li 32001, Taiwan, ROC
| | - Wen-Long Lee
- Department of Chemistry and ‡Research Center for New Generation
Photovoltaics, National Central University, Jhong-Li 32001, Taiwan, ROC
| | - Ren Ma
- Department of Chemistry and ‡Research Center for New Generation
Photovoltaics, National Central University, Jhong-Li 32001, Taiwan, ROC
| | - Chun-Guey Wu
- Department of Chemistry and ‡Research Center for New Generation
Photovoltaics, National Central University, Jhong-Li 32001, Taiwan, ROC
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36
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Huang JF, Liu JM, Su PY, Chen YF, Shen Y, Xiao LM, Kuang DB, Su CY. Highly efficient and stable cyclometalated ruthenium(II) complexes as sensitizers for dye-sensitized solar cells. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.06.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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37
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Singh AS, Sun SS. Structurally Flexible C₃-Symmetric Receptors for Molecular Recognition and Their Self-Assembly Properties. CHEM REC 2015. [PMID: 26202256 DOI: 10.1002/tcr.201500021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The bioinspired design and synthesis of building blocks and their assemblies by the supramolecular approach has ever fascinated scientists to utilize such artificial systems for numerous purposes. Flexibility is a basic feature of natural systems. However, in artificial systems this is difficult to control, especially if there is no preorganization of the component(s) of a system. We have designed and synthesized a series of C3 -symmetric N-bridged flexible receptors and successfully utilized them to selectively entrap the notorious and toxic nitrate anion in aqueous medium. This was the first report of highest binding affinity for the nitrate anion in aqueous medium. An impressive self-sorting phenomenon of reversibly formed hydrogen-bonded capsules, which self-assembled from flexible tripodal receptors having branches of similar size and bearing the same amide functionality, has been disclosed. Encapsulated nitrate anion has been further utilized for the photochemical [2+2] cycloaddition reaction for the synthesis of strained four-membered ring structures through dynamic self-assembly. In this Personal Account, we summarize these results showing the utility of naturally inspired flexibility in artificial systems.
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Affiliation(s)
- Ashutosh S Singh
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Institute of Physics Campus, Sachivalaya Marg, Near Sainik School, Bhubaneswar, 751005, India
| | - Shih-Sheng Sun
- Institute of Chemistry, Academia Sinica, 115 Nankang, Taipei, Taiwan.
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38
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Chi Y, Wu KL, Wei TC. Ruthenium and Osmium Complexes That Bear Functional Azolate Chelates for Dye-Sensitized Solar Cells. Chem Asian J 2015; 10:1098-115. [DOI: 10.1002/asia.201403261] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Indexed: 01/24/2023]
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39
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Ju ZM, Jia HL, Ju XH, Zhou XF, Shi ZQ, Zheng HG, Zhang MD. Improvement of dye-sensitized solar cells performance through introducing different heterocyclic groups to triarylamine dyes. RSC Adv 2015. [DOI: 10.1039/c4ra13782e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The overall power conversion efficiency (PCE) of DSSCs based on TTR1–3 with chenodeoxycholic acid (CDCA) coadsorbant are 5.20%, 5.71% and 6.30%, respectively, and the value of TTR3 is close to that of N719 (6.62%).
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Affiliation(s)
- Ze-Min Ju
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210093
| | - Hai-Lang Jia
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210093
| | - Xue-Hai Ju
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Xing-Fu Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemistry and Chemical Engineering
- Nanjing University of Technology
- Nanjing 210009
- P. R. China
| | - Zhi-Qiang Shi
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210093
| | - He-Gen Zheng
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210093
| | - Ming-Dao Zhang
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210093
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40
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Huo S, Mroz R, Carroll J. Negishi coupling in the synthesis of advanced electronic, optical, electrochemical, and magnetic materials. Org Chem Front 2015. [DOI: 10.1039/c4qo00322e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Negishi coupling is an efficient and versatile tool for selective C–C bond formation in the synthesis of organic electronic, optical, electrochemical, and magnetic materials.
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Affiliation(s)
- Shouquan Huo
- Department of Chemistry
- East Carolina University
- Greenville
- USA
| | - Robert Mroz
- Department of Chemistry
- East Carolina University
- Greenville
- USA
| | - Jeffrey Carroll
- Department of Chemistry
- East Carolina University
- Greenville
- USA
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41
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Wang D, Dong H, Wu Y, Yu Y, Zhou G, Li L, Wu Z, Gao M, Wang G. Effect of diphenylamine substituent on charge-transfer absorption features of the iridium complexes and application in dye-sensitized solar cell. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2014.10.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Swetha T, Niveditha S, Bhanuprakash K, Singh SP. Panchromatic Ru (II) Dipyrrins as NCS Free Sensitizers Showing Highest Efficiency for DSSCs. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.11.198] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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43
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Nisic F, Colombo A, Dragonetti C, Garoni E, Marinotto D, Righetto S, De Angelis F, Lobello MG, Salvatori P, Biagini P, Melchiorre F. Functionalized Ruthenium Dialkynyl Complexes with High Second-Order Nonlinear Optical Properties and Good Potential as Dye Sensitizers for Solar Cells. Organometallics 2014. [DOI: 10.1021/om5009378] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Filippo Nisic
- Dipartimento di Chimica dell’Università degli Studi di Milano, UdR-INSTM, and ‡ISTM-CNR, via Golgi 19, I-20133, Milano, Italy
| | - Alessia Colombo
- Dipartimento di Chimica dell’Università degli Studi di Milano, UdR-INSTM, and ‡ISTM-CNR, via Golgi 19, I-20133, Milano, Italy
| | - Claudia Dragonetti
- Dipartimento di Chimica dell’Università degli Studi di Milano, UdR-INSTM, and ‡ISTM-CNR, via Golgi 19, I-20133, Milano, Italy
| | - Eleonora Garoni
- Dipartimento di Chimica dell’Università degli Studi di Milano, UdR-INSTM, and ‡ISTM-CNR, via Golgi 19, I-20133, Milano, Italy
| | | | - Stefania Righetto
- Dipartimento di Chimica dell’Università degli Studi di Milano, UdR-INSTM, and ‡ISTM-CNR, via Golgi 19, I-20133, Milano, Italy
| | - Filippo De Angelis
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Molecolari, Via Elce di Sotto 8, I-06213, Perugia, Italy
| | - Maria Grazia Lobello
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Molecolari, Via Elce di Sotto 8, I-06213, Perugia, Italy
| | - Paolo Salvatori
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Molecolari, Via Elce di Sotto 8, I-06213, Perugia, Italy
| | - Paolo Biagini
- Centro
Ricerche per le Energie non Convenzionali, Istituto eni Donegani, via G. Fauser 4, 28100, Novara, Italy
| | - Fabio Melchiorre
- Centro
Ricerche per le Energie non Convenzionali, Istituto eni Donegani, via G. Fauser 4, 28100, Novara, Italy
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44
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Tris-Heteroleptic Ruthenium-Dipyrrinate Chromophores in a Dye-Sensitized Solar Cell. Chemistry 2014; 21:2173-81. [DOI: 10.1002/chem.201405261] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2014] [Indexed: 11/07/2022]
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45
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A Review on Current Status of Stability and Knowledge on Liquid Electrolyte-Based Dye-Sensitized Solar Cells. ACTA ACUST UNITED AC 2014. [DOI: 10.1155/2014/939525] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The purpose of this review is to gather the current background in materials development and provide the reader with an accurate image of today’s knowledge regarding the stability of dye-sensitized solar cells. This contribution highlights the literature from the 1970s to the present day on nanostructured TiO2, dye, Pt counter electrode, and liquid electrolyte for which this review is focused on.
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46
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Carli S, Casarin L, Caramori S, Boaretto R, Busatto E, Argazzi R, Bignozzi CA. A viable surface passivation approach to improve efficiency in cobalt based dye sensitized solar cells. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.06.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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47
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Soman S, Xie Y, Hamann TW. Cyclometalated sensitizers for DSSCs employing cobalt redox shuttles. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.05.061] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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48
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Chitumalla RK, Gupta KSV, Malapaka C, Fallahpour R, Islam A, Han L, Kotamarthi B, Singh SP. Thiocyanate-free cyclometalated ruthenium(II) sensitizers for DSSC: a combined experimental and theoretical investigation. Phys Chem Chem Phys 2014; 16:2630-40. [PMID: 24382430 DOI: 10.1039/c3cp53613k] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In an effort to bring out efficient thiocyanate-free dyes for dye sensitized solar cells (DSSC) we have designed, synthesized and characterized four novel cyclometalated ruthenium(II) dyes (M1 to M4) with superior photochemical properties. All dyes contain terpyridyl ligands (TPY) with carboxylic acids as anchoring groups and cyclometalated ligand (TPY-C) with substituents for fine tuning the electronic properties. We obtain a broad absorption band which extends up to 725 nm due to metal to ligand charge transfer (MLCT) when donating groups are used, which slightly blue-shifts when a withdrawing group is used. In addition to the CT, small HOMO-LUMO gaps are obtained from electrochemical measurements which indicate characteristics of an ideal sensitizer. All four dyes were used as sensitizers for DSSC and photoelectrochemical measurements were carried out. Reasonably good efficiency (7.1%) has been achieved for . We have carried out periodic-DFT studies of these dyes adsorbed on the (TiO2)38 cluster. They revealed that, in bidentate bridging mode the dyes preferably bind with the help of two carboxylic groups onto the TiO2. To the best of our knowledge we are the first to do DFT studies of thiocyanate free cyclometalated ruthenium(ii) dyes tethered to TiO2.
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Affiliation(s)
- Ramesh Kumar Chitumalla
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500607, India.
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49
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Ozawa H, Kuroda T, Harada S, Arakawa H. Efficient Ruthenium Sensitizer with a Terpyridine Ligand Having a Hexylthiophene Unit for Dye-Sensitized Solar Cells: Effects of the Substituent Position on the Solar Cell Performance. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402530] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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50
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Ozawa H, Sugiura T, Shimizu R, Arakawa H. Novel Ruthenium Sensitizers Having Different Numbers of Carboxyl Groups for Dye-Sensitized Solar Cells: Effects of the Adsorption Manner at the TiO2 Surface on the Solar Cell Performance. Inorg Chem 2014; 53:9375-84. [DOI: 10.1021/ic501479p] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Hironobu Ozawa
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, 12-1, Ichigaya-Funagawara, Shinjuku, Tokyo 162-0826, Japan
| | - Takahito Sugiura
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, 12-1, Ichigaya-Funagawara, Shinjuku, Tokyo 162-0826, Japan
| | - Ryosuke Shimizu
- 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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