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Melinao F, Vidal M, Aliaga C, Domínguez M. Inverting the Solvatochromism of Pyridinium- N-phenolate Dyes by the Addition of a Second Pyridinium Unit. J Org Chem 2024; 89:1534-1542. [PMID: 38224496 DOI: 10.1021/acs.joc.3c02158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Three bipyridinium phenolates were synthesized, and their spectral behavior was recorded at various solvent polarities and compared to a classic pyridinium phenolate dye possessing only one pyridinium acceptor ring in its structure. The addition of a second pyridinium unit to the classic solvatochromic core results in an unexpected change in the spectral behavior from negative solvatochromism (displacement of the absorption band to shorter wavelengths) to inverted solvatochromism, characterized by the transition from negative to positive solvatochromism (displacement of the absorption band to longer wavelengths) at moderate solvent polarities.
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Affiliation(s)
- Fabián Melinao
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Santiago 9170022, Chile
| | - Matías Vidal
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Santiago 9170022, Chile
| | - Carolina Aliaga
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Santiago 9170022, Chile
- Centro para el Desarrollo de la Nanociencia y la Nanotecnología (CEDENNA), Av. Bernardo O'Higgins 3363, Santiago 9170022, Chile
| | - Moisés Domínguez
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Santiago 9170022, Chile
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Bouzineb Y, Fitri A, Benjelloun AT, Benzakour M, Mcharfi M, Bouachrine M. Theoretical investigation of the effect of changing the auxiliary acceptor on the performance of organic D-A'-A dyes used as sensitizers in DSSCs. J Mol Model 2023; 29:365. [PMID: 37946060 DOI: 10.1007/s00894-023-05766-3] [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: 09/09/2023] [Accepted: 10/24/2023] [Indexed: 11/12/2023]
Abstract
CONTEXT Dye-sensitized solar cells (DSSCs) have displayed huge potential in inexpensive, efficient, and clean solar energy technology. In this work, seven new dyes with the structure D-A'-A were designed in which the thiophene in the reference dye was replaced by auxiliary acceptors (A'). These dyes consist mainly of a pyranylidene-based electron donor D and the cyanoacrylic acid moiety as acceptor A. A computational investigation was carried out on the effect of various auxiliary acceptors A' on the efficiency of D-A'-A dyes in isolation and after binding to the semiconductor TiO2. Optimized structures, geometrical, optoelectronic, and photovoltaic parameters were calculated to predict promising dyes for potential use as solar cell sensitizers, including band gap (Egap), natural bond orbital (NBO) analysis, nonlinear optical properties (NLO), UV-Vis absorption spectra, maximum absorption wavelength (λmax), reorganization energy (λtotal), light-harvesting efficiency (LHE), electron injection driving force (ΔGinject) and open-circuit photovoltage (VOC). The results of this study revealed that all designed dyes, compared to the reference dye, are characterized by small Egap and λtotal values as well as large λmax, in addition to significant NLO properties and large adsorption energy (Eads). Therefore, all studied dyes can be used as sensitizers in DSSC. METHODS Using Density Functional Theory (DFT) approaches with the B3LYP functional and the 6-31G(d,p) basis set, all ground state geometries of the isolated dyes were fully optimized. Time-Dependent Density Functional Theory (TD-DFT) method using the CAM-B3LYP/6-31G(d,p)/IEF-PCM level was applied to simulate the UV-visible absorption properties. All isolated dye calculations were performed using the Gaussian 09 software package. DFT calculations have been carried out with the DMol3 package included in Materials Studio for simulating the adsorption of the investigated dyestuff on the TiO2 surface of anatase (101), using the generalized gradient corrected approximation (GGA) approach of the Perdew-Burke-Ernzerhof (PBE) functional with the basic set of digital double polarisation (DNP). To study the optical performance of dye@TiO2 the PBE/DNP method present in DMol3 was applied.
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Affiliation(s)
- Yassir Bouzineb
- LIMAS, Faculty of Sciences Dhar el Mahraz, Sidi Mohamed Ben Abdallah University, Fez, Morocco.
| | - Asmae Fitri
- LIMAS, Faculty of Sciences Dhar el Mahraz, Sidi Mohamed Ben Abdallah University, Fez, Morocco
| | - Adil Touimi Benjelloun
- LIMAS, Faculty of Sciences Dhar el Mahraz, Sidi Mohamed Ben Abdallah University, Fez, Morocco
| | - Mohammed Benzakour
- LIMAS, Faculty of Sciences Dhar el Mahraz, Sidi Mohamed Ben Abdallah University, Fez, Morocco
| | - Mohammed Mcharfi
- LIMAS, Faculty of Sciences Dhar el Mahraz, Sidi Mohamed Ben Abdallah University, Fez, Morocco
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Aracena A, Domínguez M. Computational Quantification of the Zwitterionic/Quinoid Ratio of Phenolate Dyes for Their Solvatochromic Prediction. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27249023. [PMID: 36558156 PMCID: PMC9782446 DOI: 10.3390/molecules27249023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/10/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022]
Abstract
Solvatochromic dyes are utilized in various chemical and biological media as chemical sensors. Unfortunately, there is no simple way to predict the type of solvatochromism based on the structure of the dye alone, which restricts their design and synthesis. The most important family of solvatochromic sensors, pyridinium phenolate dyes, has the strongest solvatochromism. Using a natural population analysis (NPA) of the natural bond orbitals (NBO) of the phenolate group in the frontier molecular orbitals, it is possible to calculate the relative polarity of the ground state and excited state and, thus to develop a model that can predict the three types of solvatochromism observed for this family: negative, positive, and inverted. This methodology has been applied to thirteen representative examples from the literature. Our results demonstrate that the difference in the electron density of the phenolate moiety in the frontier molecular orbitals is a simple and inexpensive theoretical indicator for calculating the relative polarity of the ground and excited states of a representative library of pyridinium phenolate sensors, and thus predicting their solvatochromism. Comparing the results with the bond length alternation (BLA) and bond order alternation (BOA) indices showed that the NPA/NBO method is a better way to predict solvatochromic behavior.
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Affiliation(s)
- Andrés Aracena
- Instituto de Ciencias Naturales, Facultad de Medicina Veterinaria y Agronomía, Universidad de Las Américas, Sede Santiago, Campus La Florida, Avenida Walker Martínez 1360, La Florida 8240000, Santiago, Chile
- Correspondence: (A.A.); (M.D.)
| | - Moisés Domínguez
- Facultad de Química y Biología, Universidad de Santiago de Chile, Estación Central 9160000, Santiago, Chile
- Correspondence: (A.A.); (M.D.)
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Aburto I, Muñoz M, Vidal M, Aliaga C, Domínguez M. Extending the π-system of inverted solvatochromic phenolate-based dyes shifts their inversion point due to an increment in their sensitivity to solvent polarizability. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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5
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Mera-Adasme R, Moraga D, Medina R, Domínguez M. Mapping the solute–solvent interactions for the interpretation of the three types of solvatochromism exhibited by phenolate-based dyes. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tejeda-Orusco V, Andreu R, Orduna J, Villacampa B, Franco S, Civera A. Twisted One-Dimensional Charge Transfer and Related Y-Shaped Chromophores with a 4 H-Pyranylidene Donor: Synthesis and Optical Properties. J Org Chem 2021; 86:3152-3163. [PMID: 33530683 PMCID: PMC9161450 DOI: 10.1021/acs.joc.0c02438] [Citation(s) in RCA: 3] [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
![]()
Three series of push–pull
derivatives bearing 4H-pyranylidene as electron donor
group and a variety of acceptors
were designed. On one hand, one-dimensional chromophores with a thiophene
ring (series 1H) or 5-dimethylaminothiophene moiety (series 1N) as an auxiliary donor, non-coplanar with the π-conjugated
system, were synthesized. On the other hand, related two-dimensional
(2D) Y-shaped chromophores (series 2) were also prepared
to compare how the diverse architectures affect the electrochemical,
linear, and second-order nonlinear optical (NLO) properties. The presence
of the 5-dimethylaminothiophene moiety in the exocyclic C=C
bond of the pyranylidene unit gives rise to oxidation potentials rarely
low, and the protonation (with an excess of trifluoroacetic acid)
of its derivatives results in the apparition of a new blue-shifted
band in the UV–visible spectra. The analysis of the properties
of derivatives with and without the additional thiophene ring shows
that this auxiliary donor leads to a higher NLO response, accompanied
by an enhanced transparency. Y-shaped chromophores of series 2 present a blue-shifted absorption, higher molar extinction
coefficients, and higher Eox values compared
to their linear twisted counterparts. As concerns NLO properties,
2D Y-shaped architecture gives rise to somewhat lower μβ
values (except for thiobarbiturate derivatives).
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Affiliation(s)
- Víctor Tejeda-Orusco
- Instituto de Nanociencia y Materiales de Aragón (INMA)-Departamento de Química Orgánica, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Raquel Andreu
- Instituto de Nanociencia y Materiales de Aragón (INMA)-Departamento de Química Orgánica, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Jesús Orduna
- Instituto de Nanociencia y Materiales de Aragón (INMA)-Departamento de Química Orgánica, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Belén Villacampa
- Instituto de Nanociencia y Materiales de Aragón (INMA)-Departamento de Física de la Materia Condensada, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Santiago Franco
- Instituto de Nanociencia y Materiales de Aragón (INMA)-Departamento de Química Orgánica, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Alba Civera
- Instituto de Nanociencia y Materiales de Aragón (INMA)-Departamento de Química Orgánica, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
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Verbitskiy EV, Achelle S, Bureš F, le Poul P, Barsella A, Kvashnin YA, Rusinov GL, Guen FRL, Chupakhin ON, Charushin VN. Synthesis, photophysical and nonlinear optical properties of [1,2,5]oxadiazolo[3,4-b]pyrazine-based linear push-pull systems. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.112900] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Yadav SB, Sekar N. Static- and frequency-dependent NLO properties of dithienothiophene and thienothiophene bridges — A computational investigation. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2020. [DOI: 10.1142/s0219633620500182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We have explored detailed linear and nonlinear optical properties of push-pull systems bearing thienothiophene and dithienothiophene spacers. By using density functional theory (DFT), frequency-dependent strategies were applied to examine the polarizability ([Formula: see text] and hyperpolarizability ([Formula: see text] and [Formula: see text]. The set of global and range-separated hybrid functionals with different Hartree–Fock (HF) exchange percentage at two basis sets cc-pVDZ and cc-pVTZ were used to evaluate the nonlinear optical (NLO) properties. The observed trends in the absorption maxima supported by perturbation potential analysis; as the absorption maxima increases, the respective amplitude potential decreases. For the investigated compounds, [Formula: see text]-conjugation along with the type of substituted acceptor plays a crucial role in the enhancement of NLO properties. The presence of acceptor group and length of conjugation increase between the D and A group; the first- and second-order intrinsic hyperpolarizability increases, leads to enhanced first- as well as second-order hyperpolarizability. Bond length alternation (BLA)/bond order alteration (BOA) exploration suggested that compounds attain cyanine limit. The trends in NLO properties for investigated compounds are supported by chemical reactivity descriptors, hardness and hyperhardness analysis. The polarizability is linearly correlated with the hyperpolarizability parameters ([Formula: see text] and [Formula: see text] and shows a good regression coefficient by figures of merit analysis.
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Affiliation(s)
- Sagar B. Yadav
- Department of Dyestuff Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai — 400 019, India
| | - Nagaiyan Sekar
- Department of Dyestuff Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai — 400 019, India
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Mera-Adasme R, Rezende MC, Domínguez M. On the physical-chemical nature of solvent polarizability and dipolarity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:118008. [PMID: 31923787 DOI: 10.1016/j.saa.2019.118008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/26/2019] [Accepted: 12/27/2019] [Indexed: 06/10/2023]
Abstract
The positive solvatochromism of three dyes, with a spectral behavior strongly dependents on the medium dipolarity/polarizability, was studied theoretically. Both a polarizable continuum-solvent model (CSM) and explicit solvent molecules were employed to model solvent effects. The CSM approach, coupled with ten different TDDFT methods, yielded unsatisfactory results in eleven solvents. The explicit-solvation calculations, thought of much higher computational cost, yielded excellent results. As CSM schemes are known correctly model non-specific electrostatic effects, our results indicate that the traditionally considered non-specific nature of solvent dipolarity needs to be reconsidered, requiring the explicit consideration of the solute-solvent interactions for their accurate theoretical description.
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Affiliation(s)
- Raúl Mera-Adasme
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Chile
| | - Marcos Caroli Rezende
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Chile
| | - Moisés Domínguez
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Chile.
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10
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Domínguez M, Mera-Adasme R, Rezende MC. Insights into the halochromism of a bithiophene π* probe. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 222:117264. [PMID: 31212193 DOI: 10.1016/j.saa.2019.117264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/27/2019] [Accepted: 06/09/2019] [Indexed: 06/09/2023]
Abstract
The positive halochromism of the solvatochromic 4-nitro-4'-(N,N-dimethylamino)-2,2'-bithiophene in acetone and 1-butanol was investigated by molecular dynamics simulations and quantum mechanics calculations. Interactions of the dye with the solvated sodium cation were found to have only a minor effect on the observed halochromism, which was ultimately ascribed to a predominant interaction between iodide anions and the N,N-dimethylamino group of the dye.
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Affiliation(s)
- Moisés Domínguez
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Chile.
| | - Raúl Mera-Adasme
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Chile.
| | - Marcos Caroli Rezende
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Chile
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11
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Raikwar MM, Patil DS, Mathew E, Varghese M, Joe IH, Sekar N. Influence of thiophene spacer and auxiliary acceptor on the optical properties of 4-(Diethylamino)-2-hydroxybenzaldehyde based D-π-A-π-D Colorants with N-alkyl donors: Experimental, DFT and Z-scan study. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2018.12.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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12
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Raikwar MM, Mathew E, Varghese M, Joe IH, Nethi SN. NLOphoric Triphenylamine Derived Donor-π-Acceptor-π-Donor Based Colorants: Synthesis, Spectroscopic, Density Functional Theory and Z-scan Studies. Photochem Photobiol 2019; 95:931-945. [PMID: 30689210 DOI: 10.1111/php.13089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 01/19/2019] [Indexed: 12/27/2022]
Abstract
Three Donor-π-Acceptor-π-Donor type styryl dyes (5a-c) with different secondary donors are synthesized and characterized to study their nonlinear and linear optical properties. The structure-property relationships of the dyes are described in the light of systematic photophysical and theoretical investigations. The photophysical characteristics of 5a-c are influenced by the polarity of the medium, with an appreciable bathochromic shift in emission (5b = 81 nm) and large Stoke shifts (5b = 104-173 nm) in polar solvents. 5a-c showed intramolecular charge transfer characteristics recognized with the help of emission solvatochromism, solvent polarity graphs, natural bond orbital analysis and HOMO-LUMO energy difference. The optimized geometry and frontier molecular orbitals reveal that the electron donation takes place from secondary donors and not from a fixed donor (triphenylamine) which is more twisted. The nonlinear optical properties obtained using solvent induced spectral shift and computational methods are found within the limiting values. Z-scan results reveal saturable kind of behavior for 5a, 5b and 5c, whereas 5a and 5b show reverse saturable kind of behavior in acetone and ethanol and hence give optical limiting values. The two-photon absorption cross section described by two-level approximation is highest for 5b (251-300 GM).
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Affiliation(s)
- Manish M Raikwar
- Department of Dyestuff Technology, Institute of Chemical Technology (Formerly UDCT), Nathalal Parekh Marg, Matunga, Mumbai, India
| | - Elizabeth Mathew
- Centre for Molecular and Biophysics Research, Department of Physics, Mar Ivanios College, Thiruvananthapuram, India
| | - Manu Varghese
- Centre for Molecular and Biophysics Research, Department of Physics, Mar Ivanios College, Thiruvananthapuram, India
| | - Issac H Joe
- Centre for Molecular and Biophysics Research, Department of Physics, Mar Ivanios College, Thiruvananthapuram, India
| | - Sekar Nagaiyan Nethi
- Department of Dyestuff Technology, Institute of Chemical Technology (Formerly UDCT), Nathalal Parekh Marg, Matunga, Mumbai, India
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13
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Novoa N, Manzur C, Roisnel T, Dorcet V, Cabon N, Robin-Le Guen F, Ledoux-Rak I, Kahlal S, Saillard JY, Carrillo D, Hamon JR. Redox-switching of ternary Ni(ii) and Cu(ii) complexes: synthesis, experimental and theoretical studies along with second-order nonlinear optical properties. NEW J CHEM 2019. [DOI: 10.1039/c9nj01774g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The redox-switching behavior of the title compounds has been probed for the Ni(ii) derivatives using time-resolved spectroelectrochemistry under thin-layer conditions.
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Mera-Adasme R, Domínguez M. A computationally-derived model for the solvatochromism of p-phenolates with high predictive power. Phys Chem Chem Phys 2018; 20:18127-18132. [PMID: 29938260 DOI: 10.1039/c8cp02424c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We report that the positive, reverse or negative solvatochromism of p-phenolate-based dyes is highly correlated with the multireferential (MR) character of their ground-state wave function, with negative compounds presenting the highest degeneracy. CASSCF/NEVPT2 calculations show that the high MR character of the wave-function in negative dyes allows those systems to increase the dipole moment of the ground state by breaking the degeneracy as a response to the field of a polar solvent. The resulting stabilization of the ground-state with increasing solvent polarity leads to the observed negative solvatochromic behavior. A computational indicator based on our results has been successfully used for determining the direction of the solvatochromic shift of 24 dyes. Thus, our work sheds light on the physical-chemical basis for solvatochromism while providing experimental chemists with a practical tool for the design of novel negative, positive or reverse solvatochromic dyes.
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Affiliation(s)
- Raúl Mera-Adasme
- Departamento de Ciencias del Ambiente, Facultad de Qúímica y Biología, Universidad de Santiago de Chile (USACH), Chile.
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Durand RJ, Gauthier S, Achelle S, Groizard T, Kahlal S, Saillard JY, Barsella A, Le Poul N, Le Guen FR. Push-pull D-π-Ru-π-A chromophores: synthesis and electrochemical, photophysical and second-order nonlinear optical properties. Dalton Trans 2018; 47:3965-3975. [PMID: 29464264 DOI: 10.1039/c8dt00093j] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present work describes the one-pot synthesis and electrochemical, photophysical and second-order nonlinear optical (NLO) properties of a series of dipolar π-delocalized Ru(ii) dialkynyl complexes. The eight new asymmetrical D-π-Ru-π-A push-pull chromophores incorporate pyranylidene ligands as pro-aromatic donor groups (D) and formaldehyde, indane-1,3-dione, pyrimidine or pyrimidinium as electron-attracting groups (A) separated by ruthenium bis-acetylide fragments and π-conjugated linkers. The second-order nonlinear optical (NLO) properties of all eight complexes were determined by the Electric-Field-Induced Second Harmonic generation (EFISH) technique (operating at 1907 nm), and were compared to those of their purely organic analogs. All investigated compounds (organic and organometallic) exhibited positive μβ values, which dramatically increased for the complexes due to the presence of ruthenium in the π-conjugated core. The second-order NLO response could also be easily modulated by changing the nature of alkynyl substituents. The most promising ruthenium complexes 7 and 8 of the series with the pyrimidinium fragment displayed μβ values of 14 000 × 10-48 esu. The effect of structural modifications on the redox and spectroscopic properties of the complexes was also studied. The intramolecular charge transfer (ICT) occurring through the ruthenium center of the push-pull σ-dialkynyl complexes was investigated by combining experimental and theoretical data.
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Durand RJ, Gauthier S, Achelle S, Kahlal S, Saillard JY, Barsella A, Wojcik L, Le Poul N, Robin-Le Guen F. Incorporation of a platinum center in the pi-conjugated core of push-pull chromophores for nonlinear optics (NLO). Dalton Trans 2018; 46:3059-3069. [PMID: 28217794 DOI: 10.1039/c7dt00252a] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this article, we describe the synthesis, redox characteristics, and linear and nonlinear optical (NLO) properties of seven new unsymmetrical push-pull diacetylide platinum-based complexes. These D-π-Pt-π-A complexes incorporate pyranylidene ligands as pro-aromatic donor groups (D), diazine rings as electron-withdrawing groups (A), and various aromatic fragments (styryl or thienylvinyl) as π-linkers separating the platinum diacetylide unit from the donor and the acceptor groups. This is one of the first examples of push-pull chromophores incorporating a platinum center in the π-conjugated core. The NLO properties of these complexes were compared with those of their purely organic analogues. All compounds (organic and organometallic) exhibited positive μβ values, which dramatically increased upon methylation of the pyrimidine fragment. However, this increase was even more significant in the complexes due to the presence of platinum in the π-conjugated core. The effects of the linker on the redox and spectroscopic properties of the complexes are also discussed. In addition, DFT calculations were performed in order to gain further insight into the intramolecular charge transfer (ICT) occurring through the platinum center.
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Affiliation(s)
- Raphaël J Durand
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, IUT de Lannion, rue Edouard Branly, BP 30219, F-22302 Lannion Cedex, France.
| | - Sébastien Gauthier
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, IUT de Lannion, rue Edouard Branly, BP 30219, F-22302 Lannion Cedex, France.
| | - Sylvain Achelle
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, IUT de Lannion, rue Edouard Branly, BP 30219, F-22302 Lannion Cedex, France.
| | - Samia Kahlal
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, Campus de Beaulieu, 263 av. Général Leclerc, 35042 Rennes, France
| | - Jean-Yves Saillard
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, Campus de Beaulieu, 263 av. Général Leclerc, 35042 Rennes, France
| | - Alberto Barsella
- Département d'Optique ultra-rapide et Nanophotonique, IPCMS-CNRS, 23 rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - Laurianne Wojcik
- Laboratoire de Chimie, Électrochimie Moléculaires et Chimie Analytique, UMR CNRS 6521, Université de Bretagne Occidentale, UFR Sciences et Techniques, 6 avenue Victor Le Gorgeu - CS 93837, F-29238 Brest Cedex 3, France
| | - Nicolas Le Poul
- Laboratoire de Chimie, Électrochimie Moléculaires et Chimie Analytique, UMR CNRS 6521, Université de Bretagne Occidentale, UFR Sciences et Techniques, 6 avenue Victor Le Gorgeu - CS 93837, F-29238 Brest Cedex 3, France
| | - Françoise Robin-Le Guen
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, IUT de Lannion, rue Edouard Branly, BP 30219, F-22302 Lannion Cedex, France.
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Achelle S, Rodríguez-López J, Guen FRL. Photoluminescence Properties of Aryl-, Arylvinyl-, and Arylethynylpyrimidine Derivatives. ChemistrySelect 2018. [DOI: 10.1002/slct.201702472] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Sylvain Achelle
- Univ Rennes, CNRS; Institut des Sciences Chimiques de Rennes -UMR6226, F; 35000 Rennes France
| | - Julián Rodríguez-López
- Facultad de Ciencias y Tecnologías Químicas; Universidad de Castilla-La Mancha; Avda. Camilo José Cela 10 13071 Ciudad Real Spain
| | - Françoise Robin-le Guen
- Univ Rennes, CNRS; Institut des Sciences Chimiques de Rennes -UMR6226, F; 35000 Rennes France
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18
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Vidal M, Rezende MC, Pastene C, Aliaga C, Domínguez M. Solvatochromism of conjugated 4-N,N-dimethylaminophenyl-pyridinium donor–acceptor pairs. NEW J CHEM 2018. [DOI: 10.1039/c7nj04992g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of solvatochromic dyes consisting of an N,N-dimethylaminophenyl donor group conjugated with a 1-butylpyridinium acceptor ring through a 1,4-phenylene spacer were synthesized by a three-step procedure.
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19
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Wojcik L, Michaud F, Gauthier S, Cabon N, Le Poul P, Gloaguen F, Le Poul N. Reversible Redox Switching of Chromophoric Phenylmethylenepyrans by Carbon-Carbon Bond Making/Breaking. J Org Chem 2017; 82:12395-12405. [PMID: 29058426 DOI: 10.1021/acs.joc.7b02199] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Electrochromic organic systems that can undergo substantial variation of their optical properties upon electron stimulus are of high interest for the development of functional materials. In particular, devices based on radical dimerization are appropriate because of the effectiveness and speed of carbon-carbon bond making/breaking. Phenylmethylenepyrans are organic chromophores which are well suited for such purposes since their oxidation leads to the reversible formation of bispyrylium species by radical dimerization. In this paper, we show that the redox and spectroscopic properties of phenylmethylenepyrans can be modulated by adequate variation of the substituting group on the para position of the phenyl moiety, as supported by DFT calculations. This redox switching is reversible over several cycles and is accompanied by a significant modification of the UV-vis spectrum of the chromophore, as shown by time-resolved spectroelectrochemistry in thin-layer conditions.
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Affiliation(s)
- Laurianne Wojcik
- Laboratoire CEMCA, CNRS UMR 6521, Université de Bretagne Occidentale , 6 Avenue Le Gorgeu, CS 93837, Brest 29238 Cedex, France
| | - François Michaud
- Service PIMM-DRX, Université de Bretagne Occidentale , 6 Avenue Le Gorgeu, CS 93837, Brest29238 Cedex, France
| | - Sébastien Gauthier
- IUT de Lannion, CNRS UMR 6226, Institut des Sciences Chimiques de Rennes, Université de Rennes 1 , Rue Edouard Branly, 22300 Lannion, France
| | - Nolwenn Cabon
- IUT de Lannion, CNRS UMR 6226, Institut des Sciences Chimiques de Rennes, Université de Rennes 1 , Rue Edouard Branly, 22300 Lannion, France
| | - Pascal Le Poul
- IUT de Lannion, CNRS UMR 6226, Institut des Sciences Chimiques de Rennes, Université de Rennes 1 , Rue Edouard Branly, 22300 Lannion, France
| | - Frederic Gloaguen
- Laboratoire CEMCA, CNRS UMR 6521, Université de Bretagne Occidentale , 6 Avenue Le Gorgeu, CS 93837, Brest 29238 Cedex, France
| | - Nicolas Le Poul
- Laboratoire CEMCA, CNRS UMR 6521, Université de Bretagne Occidentale , 6 Avenue Le Gorgeu, CS 93837, Brest 29238 Cedex, France
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20
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Ferreira E, Le Poul P, Cabon N, Caro B, Robin-Le Guen F, Pellegrin Y, Planchat A, Odobel F. New D-π-A-conjugated organic sensitizers based on α-pyranylidene donors for dye-sensitized solar cells. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.01.094] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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21
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3,4-Dinitrothiophene as a central unit of quadrupolar push-pull-push systems. Chem Heterocycl Compd (N Y) 2017. [DOI: 10.1007/s10593-017-2020-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Hoffert K, Durand RJ, Gauthier S, Robin-le Guen F, Achelle S. Synthesis and Photophysical Properties of a Series of Pyrazine-Based Push-Pull Chromophores. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601204] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kellyn Hoffert
- Institut des Sciences Chimiques de Rennes; UMR CNRS 6226, IUT de Lannion; Rue Edouard Branly, BP 30219 22302 Lannion Cedex France
- Center of Natural Sciences; Northern Kentucky University; Nunn Drive 41099 Highland Height KY USA
| | - Raphaël J. Durand
- Institut des Sciences Chimiques de Rennes; UMR CNRS 6226, IUT de Lannion; Rue Edouard Branly, BP 30219 22302 Lannion Cedex France
| | - Sébastien Gauthier
- Institut des Sciences Chimiques de Rennes; UMR CNRS 6226, IUT de Lannion; Rue Edouard Branly, BP 30219 22302 Lannion Cedex France
| | - Françoise Robin-le Guen
- Institut des Sciences Chimiques de Rennes; UMR CNRS 6226, IUT de Lannion; Rue Edouard Branly, BP 30219 22302 Lannion Cedex France
| | - Sylvain Achelle
- Institut des Sciences Chimiques de Rennes; UMR CNRS 6226, IUT de Lannion; Rue Edouard Branly, BP 30219 22302 Lannion Cedex France
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23
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New 8-substituted BODIPY-based chromophores: synthesis, optical and electrochemical properties. HETEROCYCL COMMUN 2016. [DOI: 10.1515/hc-2016-0151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractBODIPY-based chromophores, in which an electron withdrawing difluoro-boraindacene fragment is connected via position 8 to different donor fragments, were synthesized. Their electrochemical and photophysical properties were studied. All compounds exhibit a quasi-reversible oxidation corresponding to the formation of a BODIPY π-radical cation at around 0.8 V vs. FeCp
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24
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Yalçın E, Achelle S, Bayrak Y, Seferoğlu N, Barsella A, Seferoğlu Z. Styryl-based NLO chromophores: synthesis, spectroscopic properties, and theoretical calculations. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.133] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Marco AB, Burrezo PM, Mosteo L, Franco S, Garín J, Orduna J, Diosdado BE, Villacampa B, López Navarrete JT, Casado J, Andreu R. Polarization, second-order nonlinear optical properties and electrochromism in 4H-pyranylidene chromophores with a quinoid/aromatic thiophene ring bridge. RSC Adv 2015. [DOI: 10.1039/c4ra12791a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The second-order NLO responses and spectroelectrochemical properties of donor–π–acceptor systems featuring a quinoid/aromatic thiophene unit have been studied.
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Affiliation(s)
- A. Belén Marco
- Departamento de Química Orgánica
- ICMA
- Universidad de Zaragoza-CSIC
- 50009 Zaragoza
- Spain
| | | | - Laura Mosteo
- Departamento de Química Orgánica
- ICMA
- Universidad de Zaragoza-CSIC
- 50009 Zaragoza
- Spain
| | - Santiago Franco
- Departamento de Química Orgánica
- ICMA
- Universidad de Zaragoza-CSIC
- 50009 Zaragoza
- Spain
| | - Javier Garín
- Departamento de Química Orgánica
- ICMA
- Universidad de Zaragoza-CSIC
- 50009 Zaragoza
- Spain
| | - Jesús Orduna
- Departamento de Química Orgánica
- ICMA
- Universidad de Zaragoza-CSIC
- 50009 Zaragoza
- Spain
| | - Beatriz E. Diosdado
- Servicio de Difracción de Rayos X y Análisis por Fluorescencia
- ICMA
- Universidad de Zaragoza-CSIC
- 50009 Zaragoza
- Spain
| | - Belén Villacampa
- Departamento de Física de la Materia Condensada
- ICMA
- Universidad de Zaragoza-CSIC
- 50009 Zaragoza
- Spain
| | | | - Juan Casado
- Departamento de Química Física
- Universidad de Málaga
- 29071 Málaga
- Spain
| | - Raquel Andreu
- Departamento de Química Orgánica
- ICMA
- Universidad de Zaragoza-CSIC
- 50009 Zaragoza
- Spain
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27
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Anisyl and ferrocenyl adducts of methylenepyran-containing β-diketone: Synthesis, spectral, structural, and redox properties. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.03.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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28
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Gauthier S, Caro B, Robin-Le Guen F, Bhuvanesh N, Gladysz JA, Wojcik L, Le Poul N, Planchat A, Pellegrin Y, Blart E, Jacquemin D, Odobel F. Synthesis, photovoltaic performances and TD-DFT modeling of push-pull diacetylide platinum complexes in TiO2 based dye-sensitized solar cells. Dalton Trans 2014; 43:11233-42. [PMID: 24837848 DOI: 10.1039/c4dt00301b] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this joint experimental-theoretical work, we present the synthesis and optical and electrochemical characterization of five new bis-acetylide platinum complex dyes end capped with diphenylpyranylidene moieties, as well as their performances in dye-sensitized solar cells (DSCs). Theoretical calculations relying on Time-Dependent Density Functional Theory (TD-DFT) and a range-separated hybrid show a very good match with experimental data and allow us to quantify the charge-transfer character of each compound. The photoconversion efficiency obtained reaches 4.7% for 8e (see TOC Graphic) with the tri-thiophene segment, which is among the highest efficiencies reported for platinum complexes in DSCs.
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Affiliation(s)
- Sébastien Gauthier
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, IUT de Lannion, rue Edouard Branly, BP 30219, F22302 Lannion Cedex, France.
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29
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Achelle S, Kahlal S, Saillard JY, Cabon N, Caro B, Robin-le Guen F. Dipolar and V-shaped structures incorporating methylenepyran and diazine fragments. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.02.071] [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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