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Tegegn DF, Belachew HZ, Wirtu SF, Salau AO. Geometry, reactivity descriptors, light harvesting efficiency, molecular radii, diffusion coefficient, and oxidation potential of RE(I)(CO) 3Cl(TPA-2, 2'-bipyridine) in DSSC application: DFT/TDDFT study. BMC Chem 2024; 18:110. [PMID: 38858734 DOI: 10.1186/s13065-024-01218-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 05/29/2024] [Indexed: 06/12/2024] Open
Abstract
Dye-sensitized solar cells (DSSCs) are an excellent alternative solar cell technology that is cost-effective and environmentally friendly. The geometry, reactivity descriptors, light-harvesting efficiency, molecular radii, diffusion coefficient, and excited oxidation state potential of the proposed complex were investigated. The calculations in this study were performed using DFT/TDDFT method with B3LYP functional employed on the Gaussian 09 software package. The calculations were used the 6-311 + + G(d, p) basis set for the C, H, N, O, Cl atoms and the LANL2DZ basis set for the Re atom, with the B3LYP functional.. The balance of hole and electron in this complex has increased the efficiency and lifetime of DSSCs for photovoltaic cell applications. The investigated compound shows that the addition of the TPA substituent marginally changes the geometric structures of the 2, 2'-bipyridine ligand in the T1 state. As EDsubstituents were added to the compound, the energy gap widened and moved from ELUMO (- 2.904 eV) (substituted TPA) to ELUMO (- 3.122 eV) (unsubstituted). In the studying of solvent affects; when the polarity of the solvent decreases, red shifts appears in the lowest energy an absorption and emission band. Good light-harvesting efficiency, molecular radii, diffusion coefficient, excited state oxidation potential, emission quantum yield, and DSSC reorganization energy, the complex is well suited for use as an emitter in dye-sensitized solar cells. Among the investigated complexes mentioned in literature, the proposed complex was a suitable candidate for phosphorescent DSSC.
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Affiliation(s)
- Dereje Fedasa Tegegn
- Department of Chemistry, College of Natural and Computational Science, Dambi Dollo University, P. O. Box. 260, Dambi Dollo, Oromia, Ethiopia.
| | - Habtamu Zewude Belachew
- Department of Chemistry, College of Natural and Computational Science, Dambi Dollo University, P. O. Box. 260, Dambi Dollo, Oromia, Ethiopia
| | - Shuma Fayera Wirtu
- Department of Chemistry, College of Natural and Computational Science, Dambi Dollo University, P. O. Box. 260, Dambi Dollo, Oromia, Ethiopia
| | - Ayodeji Olalekan Salau
- Department of Electrical/Electronics and Computer Engineering, Afe Babalola University, Ado-Ekiti, Nigeria.
- Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India.
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Tong KM, Toigo J, Patrick BO, Wolf MO. Rhenium(I) Complexes with Sulfur-Bridged Dipyridyl Ligands: Structural, Photophysical, and Computational Studies. Inorg Chem 2023; 62:13662-13671. [PMID: 37555810 DOI: 10.1021/acs.inorgchem.3c02124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
A series of six new rhenium(I) tricarbonyl complexes [Re(CO)3(N-N)Br] bearing sulfur-bridged dipyridyl (N-N) ligands with three different oxidation states (sulfide (S), sulfoxide (SO), and sulfone (SO2)) are described. Spectroscopic studies show that changing the oxidation state of the ligands influences the photophysical properties of the complexes, with complexes 3 and 6 containing the sulfone ligand exhibiting a lower energy MLCT absorption band tailing into the visible region. Solution-state emission measurements show that these complexes exhibit readily tunable emission energies from 480 to 610 nm, depending on the oxidation state of the sulfur bridge and the presence of substituents on the pyridyl rings. Solid-state emission measurements show that the emission is significantly red-shifted upon oxidation of the sulfur bridge to sulfone with enhanced photoluminescence quantum yield.
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Affiliation(s)
- Ka-Ming Tong
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Jessica Toigo
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Brian O Patrick
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Michael O Wolf
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
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Is it possible to ”simply” predict the photoejection of a cation? Example of azacrown-substituted [(bpy)Re(CO)3L]+ complexes. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Auvray T, Del Secco B, Dubreuil A, Zaccheroni N, Hanan GS. In-Depth Study of the Electronic Properties of NIR-Emissive κ 3N Terpyridine Rhenium(I) Dicarbonyl Complexes. Inorg Chem 2021; 60:70-79. [PMID: 33332962 DOI: 10.1021/acs.inorgchem.0c02188] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The structure-properties relationship in a series of carbonyl rhenium(I) complexes based on substituted terpyridine ligands of general formula [Re(κxN-Rtpy)(CO)yL]n+ is explored by both experimental and theoretical methods. In these compounds, the terpyridine ligands adopt both bidentate (κ2N) and terdentate (κ3N) coordination modes associated with three or two carbonyls, respectively. Conversion from the κ2N to the κ3N coordination mode leads to large changes in the absorption spectra and oxidation potentials due to destabilization of the HOMO level of each complex. The absorption profiles of the κ3N complexes cover the whole visible spectra with lower maxima around 700 nm, tailing out to 800 nm, while no emission is observed with Br- as the axial ligand L. When the axial ligand is modified from the native halide to pyridine or triphenylphosphine, the lowest absorption band is blue-shifted by 60 and 90 nm, respectively. These cationic complexes are near-infrared emitters with emission maxima between 840 and 950 nm for the pyridine compounds and 780-800 nm for the triphenylphosphine compounds.
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Affiliation(s)
- Thomas Auvray
- Département de Chimie, Université de Montréal, Montréal, Canada H2V-0B3
| | - Benedetta Del Secco
- Dipartimento di Chimica 'G. Ciamician',Università degli Studi di Bologna, Via S. Giacomo 11, 40126 Bologna, Italy
| | - Amélie Dubreuil
- Département de Chimie, Université de Montréal, Montréal, Canada H2V-0B3
| | - Nelsi Zaccheroni
- Dipartimento di Chimica 'G. Ciamician',Università degli Studi di Bologna, Via S. Giacomo 11, 40126 Bologna, Italy
| | - Garry S Hanan
- Département de Chimie, Université de Montréal, Montréal, Canada H2V-0B3
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Shakirova JR, Nayeri S, Jamali S, Porsev VV, Gurzhiy VV, Levin OV, Koshevoy IO, Tunik SP. Targeted Synthesis of NIR Luminescent Rhenium Diimine cis,trans-[Re( N N )(CO) 2 (L) 2 ] n+ Complexes Containing N-Donor Axial Ligands: Photophysical, Electrochemical, and Theoretical Studies. Chempluschem 2020; 85:2518-2527. [PMID: 33226192 DOI: 10.1002/cplu.202000597] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/05/2020] [Indexed: 11/09/2022]
Abstract
The combined action of ultraviolet irradiation and microwave heating onto acetonitrile solution of [Re( N N )(CO)3 (NCMe)]OTf ( N N =phenantroline and neocuproine) afforded cis,trans-Re( N N )(CO)2 (NCMe)2 ]+ acetonitrile derivatives. Substitution of relatively labile NCMe with a series of aromatic N-donor ligands (pyridine, pyrazine, 4,4'-bipyridine, N-methyl-4,4'-bipyridine) gave a novel family of the diimine cis,trans-[Re( N N )(CO)2 (L)2 ]+ complexes. Photophysical studies of the obtained compounds in solution revealed unusually high absorption across the visible region and NIR phosphorescence with emission band maxima ranging from 711 to 805 nm. The nature of emissive excited states was studied using DFT calculations to show dominant contribution of 3 MLCT (dπ(Re)→π*( N N )) character. Electrochemical (CV and DPV) studies of the monocationic diimine complexes revealed one reduction and one oxidation wave assigned to reduction of the diimine moiety and oxidation of the rhenium center, respectively.
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Affiliation(s)
- J R Shakirova
- Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russia
| | - S Nayeri
- Department of Chemistry, Sharif University of Technology, P.O. Box, 11155-3516, Tehran, Iran
| | - S Jamali
- Department of Chemistry, Sharif University of Technology, P.O. Box, 11155-3516, Tehran, Iran
| | - Vitaly V Porsev
- Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russia
| | - Vladislav V Gurzhiy
- Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russia
| | - Oleg V Levin
- Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russia
| | - I O Koshevoy
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
| | - S P Tunik
- Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russia
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Małecka M, Machura B, Świtlicka A, Kotowicz S, Szafraniec-Gorol G, Siwy M, Szalkowski M, Maćkowski S, Schab-Balcerzak E. Towards better understanding of photophysical properties of rhenium(I) tricarbonyl complexes with terpy-like ligands. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 231:118124. [PMID: 32062513 DOI: 10.1016/j.saa.2020.118124] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 01/31/2020] [Accepted: 02/01/2020] [Indexed: 06/10/2023]
Abstract
Series of Re(I) carbonyls complexes were designed and synthesized to explore the impact of the triimine skeleton and number of methoxy groups attached to aryl substituents on their optoelectronic and thermal properties. The chemical structures of the prepared complexes were confirmed by 1H and 13C NMR spectroscopy, HR-MS, elemental anlsysis, and X-ray measurements. DSC measuremtns showed that they melted in the range of 198-325 °C. Some of them form stable molecular glasses with high glass transition temperatures (158-173 °C). Experimentally obtained optical properties were supported by DFT calculations. The UV-Vis spectra display a series of overlapping absorption bands in the range 200-350 nm, and much weaker broad band in the visible spectral region, due to intraligand and charge transfer transitions, respectively. All synthesized complexes were emissive in solution and in solid state as powder. Moreover, when applied in diodes, some of them exhibited ability for emission of light under external voltage with maximum of electroluminescence band located at 591-630 nm.
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Affiliation(s)
- Magdalena Małecka
- Institute of Chemistry, University of Silesia, 9th Szkolna Street, 40006 Katowice, Poland
| | - Barbara Machura
- Institute of Chemistry, University of Silesia, 9th Szkolna Street, 40006 Katowice, Poland.
| | - Anna Świtlicka
- Institute of Chemistry, University of Silesia, 9th Szkolna Street, 40006 Katowice, Poland
| | - Sonia Kotowicz
- Institute of Chemistry, University of Silesia, 9th Szkolna Street, 40006 Katowice, Poland
| | | | - Mariola Siwy
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland
| | - Marcin Szalkowski
- Nanophotonics Group, Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, 5 Grudziadzka Str., 87-100 Torun, Poland
| | - Sebastian Maćkowski
- Nanophotonics Group, Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, 5 Grudziadzka Str., 87-100 Torun, Poland
| | - Ewa Schab-Balcerzak
- Institute of Chemistry, University of Silesia, 9th Szkolna Street, 40006 Katowice, Poland; Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland.
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Bakir M, Yamin MB. Physico-chemical properties of the first metal compound of di-2-pyridylketone p-nitrophenoxyacetic acid hydrazone (dpknxh), fac-Re(CO)3(κ2-Npy,Npy-dpknxh)Cl. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1696961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Mohammed Bakir
- Department of Chemistry, The University of the West Indies-Mona Campus, Kingston 7, Jamaica, W. I.
| | - M. Bohari Yamin
- Publication Enhancement Unit, Publishing Centre, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
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Nosova EV, Achelle S, Lipunova GN, Charushin VN, Chupakhin ON. Functionalized benzazines as luminescent materials and components for optoelectronics. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4887] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Synthesis, characterization, antimicrobial activity and DFT studies of 2-(pyrimidin-2-ylamino)naphthalene-1,4-dione and its Mn(II), Co(II), Ni(II) and Zn(II) complexes. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.03.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Tricarbonylrhenium(I) complexes with the N-methylpyridine-2-carbothioamide ligand – Synthesis, characterization and cytotoxicity studies. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.04.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Chioma F, Ekennia AC, Osowole AA, Okafor SN, Ibeji CU, Onwudiwe DC, Ujam OT. Synthesis, characterization, in-vitro antimicrobial properties, molecular docking and DFT studies of 3-{(E)-[(4,6-dimethylpyrimidin-2-yl)imino]methyl} naphthalen-2-ol and Heteroleptic Mn(II), Co(II), Ni(II) and Zn(II) complexes. OPEN CHEM 2018. [DOI: 10.1515/chem-2018-0020] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
AbstractHeteroleptic divalent metal complexes [M(L) (bipy)(Y)]•nH2O (where M = Mn, Co, Ni, and Zn; L = Schiff base; bipy = 2,2’-bipyridine; Y = OAc and n = 0, 1) have been synthesized from pyrimidine Schiff base ligand 3-{(E)-[(4,6-dimethylpyrimidin-2-yl)imino]methyl} naphthalen-2-ol, 2,2’-bipyridine and metal(II) acetate salts. The Schiff base and its complexes were characterized by analytical (CHN elemental analyses, solubility, melting point, conductivity) measurements, spectral (IR, UV-vis, 1H and 13C-NMR and MS) and magnetometry. The elemental analyses, Uv-vis spectra and room temperature magnetic moment data provide evidence of six coordinated octahedral geometry for the complexes. The metal complexes’ low molar conductivity values in dimethylsulphoxide suggested that they were non-ionic in nature. The compounds displayed moderate to good antimicrobial and antifungal activities against S. aureus, P. aeruginosa, E. coli, B. cereus, P. mirabilis, K. oxytoca, A. niger, A. flevus and R. Stolonifer. The compounds also exhibited good antioxidant potentials with ferrous ion chelation and, 1-diphenyl-2-picryl-hydrazyl (DPPH) radical scavenging assays. Molecular docking studies showed a good interaction with drug targets used. The structural and electronic properties of complexes were further confirmed by density functional theory calculations.
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Affiliation(s)
- Festus Chioma
- Department of Chemistry, Ignatius Ajuru University of EducationPort Harcourt, Rivers State, Nigeria
| | - Anthony C. Ekennia
- Department of Chemistry, Federal University Ndufu-Alike Ikwo (FUNAI), P.M.B 1010, Abakaliki, Ebonyi State, Nigeria
| | - Aderoju A. Osowole
- Inorganic Unit, Department of Chemistry, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Sunday N. Okafor
- Department of Pharmaceutical and Medicinal Chemistry, University of Nigeria, Nsukka410001, Enugu State, Nigeria
| | - Collins U. Ibeji
- Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, University of Nigeria, Nsukka, 410001, Enugu State, Nigeria
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Damian C. Onwudiwe
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Agriculture, Science and Technology, North-West University, (Mafikeng Campus), Private Bag X2046, Mmabatho, South Africa
- Department of Chemistry, School of Mathematical and Physical Sciences, Faculty of Agriculture, Science and Technology, North-West University, (Mafikeng Campus), Private Bag X2046, Mmabatho, 2735, South Africa
| | - Oguejiofo T. Ujam
- Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, University of Nigeria, Nsukka, 410001, Enugu State, Nigeria
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