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Karaman M, Demir N, Bilgili H, Yakali G, Gokpek Y, Demic S, Kaya N, Can M. Synthesis, characterization, aggregation-induced enhanced emission and solvatochromic behavior of dimethyl 4′-(diphenylamino)biphenyl-3,5-dicarboxylate: experimental and theoretical studies. NEW J CHEM 2020. [DOI: 10.1039/d0nj01720e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Red shift in the emission wavelength by 149 nm as a result of increased solvent polarity.
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Affiliation(s)
- Merve Karaman
- Department of Engineering Sciences
- Faculty of Engineering
- Izmir Katip Celebi University
- Cigli
- Turkey
| | - Nuriye Demir
- Solar Energy Institute
- Ege University
- Bornova
- Turkey
| | - Hakan Bilgili
- The Central Research Laboratories
- Izmir Katip Celebi University
- Cigli
- Turkey
| | - Gul Yakali
- Department of Engineering Sciences
- Faculty of Engineering
- Izmir Katip Celebi University
- Cigli
- Turkey
| | - Yenal Gokpek
- Department of Mechanical Engineering
- Faculty of Engineering
- Ege University
- Bornova
- Turkey
| | - Serafettin Demic
- The Central Research Laboratories
- Izmir Katip Celebi University
- Cigli
- Turkey
- Department of Materials Science and Engineering
| | - Nusret Kaya
- The Central Research Laboratories
- Izmir Katip Celebi University
- Cigli
- Turkey
| | - Mustafa Can
- Department of Engineering Sciences
- Faculty of Engineering
- Izmir Katip Celebi University
- Cigli
- Turkey
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4
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Anandhan K, Cerón M, Perumal V, Ceballos P, Gordillo-Guerra P, Pérez-Gutiérrez E, Castillo AE, Thamotharan S, Percino MJ. Solvatochromism and pH effect on the emission of a triphenylimidazole-phenylacrylonitrile derivative: experimental and DFT studies. RSC Adv 2019; 9:12085-12096. [PMID: 35517007 PMCID: PMC9063490 DOI: 10.1039/c9ra01275c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 04/09/2019] [Indexed: 12/26/2022] Open
Abstract
In this work, a study of the photophysical properties in different solvents and at different pH values of a luminogenic compound with a donor–π–acceptor (D–π–A) structure was carried out. The compound (Z)-3-(4-(4,5-diphenyl-1H-imidazol-2-yl)phenyl)-2-phenylacrylonitrile (2) was synthesized and characterized by SCXRD, FT-IR, 1H NMR, 13C NMR, EIMS, UV-Vis absorption and fluorescence. The SCXRD characterization reveals a monoclinic system, P21/c, with Z = 4 and an imidazole core having hydrogen bonding with respect to water molecules present in the asymmetric unit. It leads to a strong π–π-interaction in the solid state. The fluorescence λmax emission of the powder and thin film was observed at 563 nm and 540 nm respectively. Several degrees of positive solvatochromic fluorescence were observed due to different molecular conformations in various solvents. When the pH of the compound was changed with HCl or NaOH, a shift in the wavelength of emission was observed in a reversible manner. At pH 2, the λmax of emission was at 541 nm whereas at pH 14 there were two emissions at 561 nm and 671 nm. Due to their good emission in the solid state, compound 2 was tested as an emitting layer in OLEDs; the devices showed an acceptable performance with a luminance average of 450 cd m−2. The band gap was analyzed by optical absorption, cyclic voltammetry measurement and DFT calculations. The optical properties of an imidazole derivative were studied at various pH values and in solvents and the solid-state through experimental and DFT calculation.![]()
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Affiliation(s)
- Karnambaram Anandhan
- Unidad de Polímeros y Electrónica Orgánica
- ICUAP
- Benemérita Universidad Autónoma de Puebla
- Pue
- Mexico 72960
| | - Margarita Cerón
- Unidad de Polímeros y Electrónica Orgánica
- ICUAP
- Benemérita Universidad Autónoma de Puebla
- Pue
- Mexico 72960
| | - Venkatesan Perumal
- Unidad de Polímeros y Electrónica Orgánica
- ICUAP
- Benemérita Universidad Autónoma de Puebla
- Pue
- Mexico 72960
| | - Paulina Ceballos
- Unidad de Polímeros y Electrónica Orgánica
- ICUAP
- Benemérita Universidad Autónoma de Puebla
- Pue
- Mexico 72960
| | - Paola Gordillo-Guerra
- Unidad de Polímeros y Electrónica Orgánica
- ICUAP
- Benemérita Universidad Autónoma de Puebla
- Pue
- Mexico 72960
| | - Enrique Pérez-Gutiérrez
- Unidad de Polímeros y Electrónica Orgánica
- ICUAP
- Benemérita Universidad Autónoma de Puebla
- Pue
- Mexico 72960
| | - Armando E. Castillo
- Unidad de Polímeros y Electrónica Orgánica
- ICUAP
- Benemérita Universidad Autónoma de Puebla
- Pue
- Mexico 72960
| | - Subbiah Thamotharan
- Biomolecular Crystallography Laboratory
- Department of Bioinformatics
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur 613 401
| | - M. Judith Percino
- Unidad de Polímeros y Electrónica Orgánica
- ICUAP
- Benemérita Universidad Autónoma de Puebla
- Pue
- Mexico 72960
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6
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Mandal M, Oppelt K, List M, Teasdale I, Chakraborty D, Monkowius U. Copper(II) complexes with imino phenoxide ligands: synthesis, characterization, and their application as catalysts for the ring-opening polymerization of rac-lactide. MONATSHEFTE FUR CHEMIE 2016; 147:1883-1892. [PMID: 27795584 PMCID: PMC5063905 DOI: 10.1007/s00706-016-1830-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 07/26/2016] [Indexed: 11/28/2022]
Abstract
ABSTRACT Four new copper complexes based on bidentate imino phenoxide ligands were synthesized and characterized by IR, UV-Vis spectroscopy, ESI mass spectrometry, single crystal X-ray diffraction, and electrochemistry. The crystal structures revealed that the copper(II) atoms are surrounded by phenolate oxygen and imine nitrogen atoms of two ligands in a distorted square-planar geometry. The existence of ligand-centered, as well as Cu(II)-centered quasi-reversible and reversible redox reactions are observed in the cyclic voltammetry experiments of all the complexes. All complexes are able to catalyze the ring-opening polymerization of rac-lactide yielding polymers with moderate molecular weights and moderately broad molecular weight distributions. GRAPHICAL ABSTRACT
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Affiliation(s)
- Mrinmay Mandal
- Institute of Inorganic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, 4040 Linz, Austria
- Department of Chemistry, Indian Institute of Technology Patna, Patna, Bihar 800 013 India
| | - Kerstin Oppelt
- Institute of Inorganic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, 4040 Linz, Austria
| | - Manuela List
- Institute for Chemical Technology of Organic Materials, Johannes Kepler University Linz, Altenbergerstr. 69, 4040 Linz, Austria
| | - Ian Teasdale
- Institute of Polymer Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, 4040 Linz, Austria
| | - Debashis Chakraborty
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600 036 India
| | - Uwe Monkowius
- Institute of Inorganic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, 4040 Linz, Austria
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7
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Percino MJ, Cerón M, Rodríguez O, Soriano-Moro G, Castro ME, Chapela VM, Siegler MA, Pérez-Gutiérrez E. Conformational and Molecular Structures of α,β-Unsaturated Acrylonitrile Derivatives: Photophysical Properties and Their Frontier Orbitals. Molecules 2016; 21:389. [PMID: 27043499 PMCID: PMC6273167 DOI: 10.3390/molecules21040389] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 03/10/2016] [Accepted: 03/15/2016] [Indexed: 11/17/2022] Open
Abstract
We report single crystal X-ray diffraction (hereafter, SCXRD) analyses of derivatives featuring the electron-donor N-ethylcarbazole or the (4-diphenylamino)phenyl moieties associated with a -CN group attached to a double bond. The compounds are (2Z)-3-(4-(diphenylamino)-phenyl)-2-(pyridin-3-yl)prop-2-enenitrile (I), (2Z)-3-(4-(diphenylamino)phenyl)-2-(pyridin-4-yl)-prop-2-enenitrile (II) and (2Z)-3-(9-ethyl-9H-carbazol-3-yl)-2-(pyridin-2-yl)enenitrile (III). SCXRD analyses reveal that I and III crystallize in the monoclinic space groups P2/c with Z’ = 2 and C2/c with Z’ = 1, respectively. Compound II crystallized in the orthorhombic space group Pbcn with Z’ = 1. The molecular packing analysis was conducted to examine the pyridine core effect, depending on the ortho, meta- and para-positions of the nitrogen atom, with respect to the optical properties and number of independent molecules (Z’). It is found that the double bond bearing a diphenylamino moiety introduced properties to exhibit a strong π-π-interaction in the solid state. The compounds were examined to evaluate the effects of solvent polarity, the role of the molecular structure, and the molecular interactions on their self-assembly behaviors. Compound I crystallized with a cell with two conformers, anti and syn, due to interaction with solvent. DFT calculations indicated the anti and syn structures of I are energetically stable (less than 1 eV). Also electrochemical and photophysical properties of the compounds were investigated, as well as the determination of optimization calculations in gas and different solvent (chloroform, cyclohexane, methanol, ethanol, tetrahydrofuran, dichloromethane and dimethyl sulfoxide) in the Gaussian09 program. The effect of solvent by PCM method was also investigated. The frontier HOMO and LUMO energies and gap energies are reported.
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Affiliation(s)
- María Judith Percino
- Laboratorio de Polímeros, Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla (BUAP), Complejo de Ciencias, ICUAP, Edif. 103H, 22 Sur y San Claudio, C.P. 72570 Puebla, Puebla, Mexico.
| | - Margarita Cerón
- Laboratorio de Polímeros, Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla (BUAP), Complejo de Ciencias, ICUAP, Edif. 103H, 22 Sur y San Claudio, C.P. 72570 Puebla, Puebla, Mexico.
| | - Oscar Rodríguez
- Laboratorio de Polímeros, Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla (BUAP), Complejo de Ciencias, ICUAP, Edif. 103H, 22 Sur y San Claudio, C.P. 72570 Puebla, Puebla, Mexico.
| | - Guillermo Soriano-Moro
- Laboratorio de Polímeros, Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla (BUAP), Complejo de Ciencias, ICUAP, Edif. 103H, 22 Sur y San Claudio, C.P. 72570 Puebla, Puebla, Mexico.
| | - María Eugenia Castro
- Laboratorio de Polímeros, Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla (BUAP), Complejo de Ciencias, ICUAP, Edif. 103H, 22 Sur y San Claudio, C.P. 72570 Puebla, Puebla, Mexico.
| | - Víctor M Chapela
- Laboratorio de Polímeros, Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla (BUAP), Complejo de Ciencias, ICUAP, Edif. 103H, 22 Sur y San Claudio, C.P. 72570 Puebla, Puebla, Mexico.
| | - Maxime A Siegler
- Department of Chemistry, Johns Hopkins University, New Chemistry Building, 3400 N. Charles St. Baltimore, MD 21218, USA.
| | - Enrique Pérez-Gutiérrez
- Centro de Investigaciones en Óptica (CIO), Loma del Bosque 115, Lomas del Campestre, León, Guanajuato 37000, Mexico.
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Percino MJ, Cerón M, Ceballos P, Soriano-Moro G, Rodríguez O, Chapela VM, Castro ME, Bonilla-Cruz J, Siegler MA. Changes in the luminescence emission of α,β-unsaturated acrylonitrile derivatives: morphology, polymorphism and solvent effect. CrystEngComm 2016. [DOI: 10.1039/c6ce01391k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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