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Messiad H, Hamamdia FZ, Belguidoum K, Lemouari N, Amira-Guebailia H. Synthesis and spectroscopic characterization of charge transfer complexes of the donor hesperidin and π-acceptors; 2,3-dichloro-5,6-dicyano-1,4- benzoquinone and tetracyanoethylene. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Nampally V, Palnati MK, Baindla N, Varukolu M, Gangadhari S, Tigulla P. Charge Transfer Complex between O-Phenylenediamine and 2, 3-Dichloro-5, 6-Dicyano-1, 4-Benzoquinone: Synthesis, Spectrophotometric, Characterization, Computational Analysis, and its Biological Applications. ACS OMEGA 2022; 7:16689-16704. [PMID: 35601332 PMCID: PMC9118382 DOI: 10.1021/acsomega.2c01177] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 04/20/2022] [Indexed: 05/28/2023]
Abstract
UV-vis electronic absorption spectroscopy was used to investigate the new molecular charge transfer complex (CTC) interaction between electron donor O-phenylenediamine (OPD) and electron acceptor 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ). The CTC solution state analysis was carried out by two different polarities. The stoichiometry of the prepared CTC was determined by using Job's, photometric, and conductometric titration methods and was detemined to be 1:1 in both solvents (at 298 K). The formation constant and molar extinction coefficient were determined by applying the modified (1:1) Benesi-Hildebrand equation. The thermodynamic parameter ΔG° result indicated that the charge transfer reaction was spontaneous.The stability of the synthesized CTC was evaluated by using different spectroscopic parameters like the energy, ionization potential, oscillator strength, resonance energy, dissociation energy, and transition dipole moment. The synthesized solid CTC was characterized by using different analytical methods, including elemental analysis, Fourier transform infrared, nuclear magnetic resonance, TGA-DTA, and powder X-ray diffraction. The biological evolution of the charge transfer (CT) complex was studied by using DNA binding and antibacterial analysis. The CT complex binding with calf thymus DNA through an intercalative mode was observed from UV-vis spectral study. The CT complex produced a good binding constant value (6.0 × 105 L.mol-1). The antibacterial activity of the CT complex shows notable activity compared to the standard drug, tetracycline. These results reveal that the CT complex may in future be used as a bioactive drug. The hypothetical DFT estimations of the CT complex supported the experimental studies.
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Affiliation(s)
| | | | - Naveen Baindla
- Department
of Chemistry, Osmania University, Hyderabad-500007, India
| | - Mahipal Varukolu
- Department
of Chemistry, Osmania University, Hyderabad-500007, India
| | - Suresh Gangadhari
- Department
of Chemistry, Osmania University, Hyderabad-500007, India
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Hamamdia FZ, Messiad H, Belguidoum K, Lemouari N, Amira-Guebailia H. Synthesis, spectroscopic and thermodynamic study of charge transfer complexes of natural drug rutin as donor with Π-acceptors; 2,3-dichloro-5,6-dicyano-1,4-benzoquinone and tetracyanoethylene. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131795] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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4
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Alghanmi RM, Basha MT, Soliman SM, Alsaeedi RK. New Charge Transfer Complexes of K +-Channel-Blocker Drug (Amifampridine; AMFP) for Sensitive Detection; Solution Investigations and DFT Studies. Molecules 2021; 26:molecules26196037. [PMID: 34641581 PMCID: PMC8512129 DOI: 10.3390/molecules26196037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/26/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022] Open
Abstract
UV-Vis spectroscopy was used to investigate two new charge transfer (CT) complexes formed between the K+-channel-blocker amifampridine (AMFP) drug and the two π-acceptors 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) and tetracyanoethylene (TCNE) in different solvents. The molecular composition of the new CT complexes was estimated using the continuous variations method and found to be 1:1 for both complexes. The formed CT complexes' electronic spectra data were further employed for calculating the formation constants (KCT), molar extinction coefficients (εCT), and physical parameters at various temperatures, and the results demonstrated the high stability of both complexes. In addition, sensitive spectrophotometric methods for quantifying AMFP in its pure form were proposed and statistically validated. Furthermore, DFT calculations were used to predict the molecular structures of AMFP-DDQ and AMFP-TCNE complexes in CHCl3. TD-DFT calculations were also used to predict the electronic spectra of both complexes. A CT-based transition band (exp. 399 and 417 nm) for the AMFP-TCNE complex was calculated at 411.5 nm (f = 0.105, HOMO-1 → LUMO). The two absorption bands at 459 nm (calc. 426.9 nm, f = 0.054) and 584 nm (calc. 628.1 nm, f = 0.111) of the AMFP-DDQ complex were theoretically assigned to HOMO-1 → LUMO and HOMO → LUMO excitations, respectively.
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Affiliation(s)
- Reem M. Alghanmi
- Department of Chemistry, College of Science, University of Jeddah, P.O. 80327, Jeddah 21589, Saudi Arabia; (M.T.B.); (R.K.A.)
- Correspondence:
| | - Maram T. Basha
- Department of Chemistry, College of Science, University of Jeddah, P.O. 80327, Jeddah 21589, Saudi Arabia; (M.T.B.); (R.K.A.)
| | - Saied M. Soliman
- Department of Chemistry, Faculty of Science, Alexandria University, P.O. 426, Ibrahimia, Alexandria 21525, Egypt;
| | - Razan K. Alsaeedi
- Department of Chemistry, College of Science, University of Jeddah, P.O. 80327, Jeddah 21589, Saudi Arabia; (M.T.B.); (R.K.A.)
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Khalil A, Kashif M. Development of UV-visible spectrophotometric methods for the quantitative and in silico studies for cilazapril optimized by response surface methodology. Drug Dev Ind Pharm 2021; 47:1100-1111. [PMID: 34286656 DOI: 10.1080/03639045.2021.1957918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
For cilazapril (CLZ), analytical methods based on donor-acceptor phenomenon that are simple, rapid with broad linear dynamic range for the quantification of drug are not available in the literature. Considering the requirement for the methods, in this study, two economic, potent analytical methods based on the complexation of CLZ with π-acceptors, 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) and 2,5-dichloro-3,6-dihydroxy-p-benzoquinone (CA) were developed, validated, and studied spectrophotometrically. Various analytical data were discussed. The effects of experimental variables were optimized from the results of in silico technique, i.e. Box-Behnken design under response surface methodology. Linear dynamic range was significantly good in the range of 6-60 µg mL-1 and 20-260 µg mL-1 for DDQ and CA methods. Moreover, molecular docking studies corroborated the experimental results. Further, the methods were supplemented by the pharmaceutical and biological application for the quantitative assay of CLZ. Collectively, the results of the reported method of the analysis suggest that the developed approach is simple, sensitive, accurate and precise.
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Affiliation(s)
- Adila Khalil
- Department of Chemistry, Analytical Chemistry Section, Aligarh Muslim University, Aligarh, India
| | - Mohammad Kashif
- Department of Chemistry, Analytical Chemistry Section, Aligarh Muslim University, Aligarh, India
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Bougherara H, Kadri R, Kadri M, Yekhlef M, Boumaza A. Complex of 4-(2-aminophenyl) −1,2,3- thiadiazole with 2,3-dichloro- 5,6-dicyano-1,4-benzoquinone: Experimental study and investigation at different exchange-correlation functionals. DOS, NBO, QTAIM and RDG analyses. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.128855] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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7
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DNA Binding, DFT and Spectroscopic Studies of a Charge Transfer Complex Consisting of a Bioactive Donor 1-(2-Methylbenzyl)piperazine. J SOLUTION CHEM 2020. [DOI: 10.1007/s10953-020-00989-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Synthesis, spectroscopic, theoretical and antimicrobial studies on molecular charge-transfer complex of 4-(2-thiazolylazo)resorcinol (TAR) with 3, 5-dinitrosalicylic acid, picric acid, and chloranilic acid. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112217] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Liu H, Cui M, Dang C, Wen W, Wang X, Xie L. Two-Dimensional WSe 2/Organic Acceptor Hybrid Nonvolatile Memory Devices Based on Interface Charge Trapping. ACS APPLIED MATERIALS & INTERFACES 2019; 11:34424-34429. [PMID: 31448585 DOI: 10.1021/acsami.9b11998] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Two-dimensional (2D) materials, with atomic thickness and unique electronic structure, hold great potentials in electronic device applications. Charge transfer at the interface of 2D materials further provides a versatile platform for applications in electronics. Here, we report nonvolatile memory devices based on interface charge trapping between 2D WSe2 and organic electron acceptors. The 2D WSe2-organic acceptor hybrid structure exhibits a high storage performance, such as large gate memory windows, high on/off ratios (>103), and long retention time (>1000 s). Further analysis revealed that organic acceptors with a stronger electron affinity (i.e., higher redox potential) have a larger electron-trapping ability and hence a better memory performance.
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Affiliation(s)
- Haining Liu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Menghua Cui
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Chunhe Dang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Wen Wen
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Xinsheng Wang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
| | - Liming Xie
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
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Khan IM, Alam K, Alam MJ, Ahmad M. Spectrophotometric and photocatalytic studies of H-bonded charge transfer complex of oxalic acid with imidazole: single crystal XRD, experimental and DFT/TD-DFT studies. NEW J CHEM 2019. [DOI: 10.1039/c9nj00332k] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photocatalytic activity of a new CT complex was tested. Spectrophotometric studies were performed to understand its formation through N+–H⋯O− hydrogen bonding, and the structure was confirmed by single crystal XRD.
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Affiliation(s)
- Ishaat M. Khan
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Kehkashan Alam
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | | | - Musheer Ahmad
- Department of Applied Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
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Almalki AS, Alhadhrami A, Obaid RJ, Alsharif MA, Adam AMA, Grabchev I, Refat MS. Preparation of some compounds and study their thermal stability for use in dye sensitized solar cells. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.04.057] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Georgiev A, Bubev E, Dimov D, Yancheva D, Zhivkov I, Krajčovič J, Vala M, Weiter M, Machkova M. Synthesis, structure, spectral properties and DFT quantum chemical calculations of 4-aminoazobenzene dyes. Effect of intramolecular hydrogen bonding on photoisomerization. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 175:76-91. [PMID: 28024251 DOI: 10.1016/j.saa.2016.12.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 11/27/2016] [Accepted: 12/07/2016] [Indexed: 06/06/2023]
Abstract
In this paper three different "push-pull" 4-aminoazobenzene dyes have been synthesized in order to characterize their photochromic behavior in different solvents. The molecular geometry was optimized by DFT/B3LYP functional combined with the standard 6-31+G(d,p) basis set for trans (E) and cis (Z) isomers and the energy levels of HOMO and LUMO frontier orbitals were computed using IEFPCM solvation in CHCl3 and DMF. The calculated results were compared to the experimental optical band gap and HOMO values of cyclic voltammetry. The intramolecular six-membered hydrogen bond was formed in both isomers of the synthesized dyes. The thermodynamic parameters such as total electronic energy E (RB3LYP), enthalpy H298 (sum of electronic and thermal enthalpies), free Gibbs energy G298 (sum of electronic and thermal free Gibbs energies) and dipole moment μ were computed for trans (E) and cis (Z) isomers in order to estimate the ΔEtrans→cis, Δμtrans→cis, ΔHtrans→cis, ΔGtrans→cis and ΔStrans→cis values. The NBO analysis was performed in order to understand the intramolecular charge transfer and energy of resonance stabilization. The solvatochromic shift was evaluated by UV-VIS spectroscopy in CHCl3 (nonpolar), EtOH (polar protic) and DMF (polar aprotic) solvents to determine the electron withdrawing and donating properties of the substituents on electron transitions energy. Through the increasing solvent polarity a strong bathochromic shift is observed. The photoisomerization experiments have been performed in two solvents CHCl3 (nonpolar) and DMF (polar aprotic) by UV light irradiation with λ=365nm at equal concentrations and time of illuminations. The electronic spectra were computed by TD-DFT after geometry optimization using IEFPCM solvation in CHCl3 and DMF. The degree of photoisomerization was calculated for the three azo chromophores in both solvents. By using first derivative of the UV-VIS spectra it was possible to resolve the overlapped electron transitions absorption bands. The existing intramolecular hydrogen bond in the azo chromophores was discussed in relation to the isomerization mechanisms and relative stability of the cis (Z) isomers.
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Affiliation(s)
- Anton Georgiev
- Department of Organic and Physical Chemistry, 1756 Sofia, 8 St. Kliment Ohridski Blvd, University of Chemical Technology and Metallurgy, Bulgaria.
| | - Emil Bubev
- Department of Organic and Physical Chemistry, 1756 Sofia, 8 St. Kliment Ohridski Blvd, University of Chemical Technology and Metallurgy, Bulgaria
| | - Deyan Dimov
- Department of Nanostructured Materials and Technology, 1113, Sofia, 109 Acad. G. Bonchev Blvd, Institute of Optical Materials and Technologies, Bulgarian Academy of Science, Bulgaria
| | - Denitsa Yancheva
- Laboratory of Structural Organic Analysis, Sofia 1113, 9 Acad. G. Bonchev Blvd, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Science, Bulgaria
| | - Ivaylo Zhivkov
- Department of Nanostructured Materials and Technology, 1113, Sofia, 109 Acad. G. Bonchev Blvd, Institute of Optical Materials and Technologies, Bulgarian Academy of Science, Bulgaria; Materials Research Centre, Faculty of Chemistry, Purkyňova 118, Brno, Brno University of Technology, Czech Republic
| | - Jozef Krajčovič
- Materials Research Centre, Faculty of Chemistry, Purkyňova 118, Brno, Brno University of Technology, Czech Republic
| | - Martin Vala
- Materials Research Centre, Faculty of Chemistry, Purkyňova 118, Brno, Brno University of Technology, Czech Republic
| | - Martin Weiter
- Materials Research Centre, Faculty of Chemistry, Purkyňova 118, Brno, Brno University of Technology, Czech Republic
| | - Maria Machkova
- Department of Organic and Physical Chemistry, 1756 Sofia, 8 St. Kliment Ohridski Blvd, University of Chemical Technology and Metallurgy, Bulgaria
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