1
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Al-Humaidi JY, Riyadh SM, Farag B, Zaki MEA, Abolibda TZ, Gomha SM. Synthesis of Bis-thiazoles Tethered 1,4-Dihydropyridine and Pyridine Linkers via Simple Oxidation and their Molecular Docking as VEGFR -TK Inhibitors. Curr Med Chem 2024; 31:CMC-EPUB-139216. [PMID: 38500276 DOI: 10.2174/0109298673266044231002071238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/05/2023] [Accepted: 09/01/2023] [Indexed: 03/20/2024]
Abstract
AIM In this study, a neoteric and expedient oxidation method is applied for a variety of Hantzsch 1,4-dihydropyridine derivatives such as 1,4-dihydro- 2,6-dimethyl-3,5-diacetylpyridine, 3,5-bis-hydrazono--2,6-dimethyl-1,4-dihydropyridine, and 3,5-bis-thiazoly-2,6-dimethyl-1,4-dihydro pyridine. METHOD This simple oxidation is based upon the in situ generation of nitrous acid from an aqueous sodium nitrite and acetic acid mixture and could be used to downgrade costs, sustain resources, and minimize chemical wastes. Also, a molecular modeling strategy was used to study the mechanism of action for various derivatives of bis-hydrazinylidene- thiazole as the protein Vascular Endothelial Growth Factor Receptor Tyrosine Kinase (VEGFR TK) inhibitor through evaluating their binding scores and modes compared with Sorafenib as a reference standard. RESULT The results revealed that the interaction of hydrazinylidene and thiazole as an anticancer Tyrosine Kinase inhibitor has been improved. CONCLUSION Additionally, the compounds exhibiting the highest activity were assessed for their potential anticancer effects against HepG-2, MCF-7, and WI-38 cells, and the outcomes demonstrated encouraging activity against cancer.
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Affiliation(s)
- Jehan Y Al-Humaidi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O .BOX 84428, Riyadh11671, Saudi Arabia
| | - Sayed M Riyadh
- Department of Chemistry, Faculty of Science, Cairo University, Cairo 12613, Egypt
| | - Basant Farag
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Magdi E A Zaki
- Department of Chemistry, Faculty of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Tariq Z Abolibda
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah, 42351, Saudi Arabia
| | - Sobhi M Gomha
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah, 42351, Saudi Arabia
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2
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Ahmed HA, Abolibda TZ, Ismail YAM, Almohammedi A, Aly KA, Ibrahim MS, Gomha SM. Novel maleic anhydride derivatives: liquid crystalline materials with enhanced mesomorphic and optical characteristics. Front Chem 2023; 11:1287883. [PMID: 38025055 PMCID: PMC10665853 DOI: 10.3389/fchem.2023.1287883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
A new class of liquid crystalline materials, 4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl 4-(alkoxy)benzoates (Mn), derived from maleic anhydride, was synthesized and studied for mesomorphic and optical properties. These materials consist of three derivatives with varying terminal flexible chain lengths (6-12 carbons) linked to the phenyl ring near the ester bond. The study employed differential scanning calorimetry and polarized optical microscopy (POM) to characterize the mesomorphic properties. Molecular structures were elucidated using elemental analysis, FT-IR, and NMR spectroscopy. The findings reveal that all the synthesized maleic anhydride derivatives exhibit enantiotropic nematic (N) mesophases. The insertion of the heterocyclic maleic anhydride moiety into the molecular structure influences the stability and range of the N phase. Additionally, entropy changes during N-isotropic transitions are of small magnitude and exhibit non-linear trends independent of the terminal alkoxy chain length (n). This suggests that the ester linkage group does not significantly promote molecular biaxiality, and the clearing temperature values are relatively high. By comparing the investigated materials with their furan derivatives found in existing literature, it was established that the substitution examined in this study induces the formation of nematic phases.
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Affiliation(s)
- Hoda A. Ahmed
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
- Chemistry Department, College of Sciences, Taibah University, Yanbu, Saudi Arabia
| | - Tariq Z. Abolibda
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah, Saudi Arabia
| | - Yasser A. M. Ismail
- Department of Physics, Faculty of Science, Islamic University of Madinah, Madinah, Saudi Arabia
| | - Abdullah Almohammedi
- Department of Physics, Faculty of Science, Islamic University of Madinah, Madinah, Saudi Arabia
| | - K. A. Aly
- Department of Physics, Collage of Science and Arts Khylais, University of Jeddah, Khulais, Saudi Arabia
- Department of Physics, Faculty of Science, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Mohamed S. Ibrahim
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah, Saudi Arabia
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah, Saudi Arabia
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3
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Khalil KD, Riyadh SM, Bashal AH, Abolibda TZ, Gomha SM. Green Synthetic Approaches of 2-Hydrazonothiazol-4(5 H)-ones Using Sustainable Barium Oxide-Chitosan Nanocomposite Catalyst. Polymers (Basel) 2023; 15:3817. [PMID: 37765671 PMCID: PMC10534876 DOI: 10.3390/polym15183817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/12/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
The diverse applications of metal oxide-biopolymer matrix as a nanocomposite heterogenous catalyst have caused many researches to scrutinize the potential of this framework. In this study, a novel hybrid barium oxide-chitosan nanocomposite was synthesized through a facile and cost-effective co-precipitation method by doping barium oxide nanoparticles within the chitosan matrix at a weight percentage of 20 wt.% BaO-chitosan. A thin film of the novel hybrid material was produced by casting the nanocomposite solution in a petri dish. Several instrumental methods, including Fourier-transform infrared (FTIR), scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD), were used to analyze and characterize the structure of the BaO-CS nanocomposite. The chemical interaction with barium oxide molecules resulted in a noticeable displacement of the most significant chitosan-specific peaks in the FTIR spectra. When the surface morphology of SEM graphs was analyzed, a dramatic morphological change in the chitosan surface was also discovered; this morphological change can be attributed to the surface adsorption of BaO molecules. Additionally, the patterns of the XRD demonstrated that the crystallinity of the material, chitosan, appears to be enhanced upon interaction with barium oxide molecules with the active sites, OH and NH2 groups, along the chitosan backbone. The prepared BaO-CS nanocomposite can be used successfully as an effective heterogenous recyclable catalyst for the reaction of N,N'-(alkane-diyl)bis(2-chloroacetamide) with 2-(arylidinehydrazine)-1-carbothioamide as a novel synthetic approach to prepare 2-hydrazonothiazol-4(5H)-ones. This new method provides a number of benefits, including quick and permissive reaction conditions, better reaction yields, and sustainable catalysts for multiple uses.
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Affiliation(s)
- Khaled D. Khalil
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Almunawarah, Yanbu 46423, Saudi Arabia;
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Sayed M. Riyadh
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Almunawrah 30002, Saudi Arabia;
| | - Ali H. Bashal
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Almunawarah, Yanbu 46423, Saudi Arabia;
| | - Tariq Z. Abolibda
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia; (T.Z.A.); (S.M.G.)
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia; (T.Z.A.); (S.M.G.)
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4
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Al-Humaidi J, Gomha SM, Riyadh SM, Ibrahim MS, Zaki MEA, Abolibda TZ, Jefri OA, Abouzied AS. Synthesis, Biological Evaluation, and Molecular Docking of Novel Azolylhydrazonothiazoles as Potential Anticancer Agents. ACS Omega 2023; 8:34044-34058. [PMID: 37744790 PMCID: PMC10515364 DOI: 10.1021/acsomega.3c05038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 08/09/2023] [Indexed: 09/26/2023]
Abstract
A novel set of thiazolylhydrazonothiazoles bearing an indole moiety were synthesized by subjection reactions of carbothioamide derivative and hydrazonoyl chlorides (or α-haloketones). The cytotoxicity of the synthesized compounds was evaluated against the colon carcinoma cell line (HCT-116), liver carcinoma cell line (HepG2), and breast carcinoma cell line (MDA-MB-231), and demonstrated encouraging activity. Furthermore, when representative products were assessed for toxicity against normal cells, minimal toxic effects were observed, indicating their potential safety for use in pharmacological studies. The mechanism of action of the tested products, as inhibitors of the epidermal growth factor receptor tyrosine kinase domain (EGFR TK) protein, was suggested through docking studies that assessed their binding scores and modes, in comparison to a reference standard (W19), thus endorsing their anticancer activity.
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Affiliation(s)
- Jehan
Y. Al-Humaidi
- Department
of Chemistry, College of Science, Princess
Nourah Bint Abdulrahman University, P.O. .BOX 84428, Riyadh 11671, Saudi Arabia
| | - Sobhi M. Gomha
- Department
of Chemistry, Faculty of Science, Islamic
University of Madinah, Madinah 42351, Saudi Arabia
| | - Sayed M. Riyadh
- Department
of Chemistry, Faculty of Science, Cairo
University, Cairo 12613, Egypt
| | - Mohamed S. Ibrahim
- Department
of Chemistry, Faculty of Science, Islamic
University of Madinah, Madinah 42351, Saudi Arabia
| | - Magdi E. A. Zaki
- Department
of Chemistry, Faculty of Science, Imam Mohammad
Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Tariq Z. Abolibda
- Department
of Chemistry, Faculty of Science, Islamic
University of Madinah, Madinah 42351, Saudi Arabia
| | - Ohoud A. Jefri
- Department
of Biological Science, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Amr S. Abouzied
- Department
of Pharmaceutical Chemistry, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia
- Department
of Pharmaceutical Chemistry, National Organization
for Drug Control and Research (NODCAR), Giza 12311, Egypt
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5
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Yaccoubi F, El-Naggar M, Abdelrazek FM, Gomha SM, Farghaly MS, Abolibda TZ, Ali LA, Abdelmonsef AH. Pyrido-pyrimido-thiadiazinones: green synthesis, molecular docking studies and biological investigation as obesity inhibitors. Journal of Taibah University for Science 2022. [DOI: 10.1080/16583655.2022.2159210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ferid Yaccoubi
- Université de Tunis El Manar, Faculté des Sciences de Tunis, Laboratoire de Chimie Organique Structurale LR99ES14, Campus Universitaire, 2092 Tunis, Tunisia
- Department of Chemistry, Faculty of Science and Humanity Studies at Al Quwayiyah, Shaqra University, Al-Quwayiyah 19245, Saudi Arabia
| | - Mohamed El-Naggar
- Depatement of Chemistry, Pure and Applied Chemistry Group, Faculty of Sciences, University of Sharjah, Sharjah 27272, UAE
- National Institute of Oceanography and Fisheries, kayet Bay, Alexandria, Egypt
| | - Fathy M. Abdelrazek
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Sobhi M. Gomha
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia
| | - Mohamed S. Farghaly
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
- Science & Technology Center of Excellence, Ministry of Military Production, Cairo, Egypt
| | - Tariq Z. Abolibda
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia
| | - Lobna A. Ali
- Cell Biology and Histochemistry, Zoology Department, Faculty of Science, South Valley University, Qena, Egypt
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6
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Aljohani GF, Abolibda TZ, Alhilal M, Al-Humaidi JY, Alhilal S, Ahmed HA, Gomha SM. Novel thiadiazole-thiazole hybrids: synthesis, molecular docking, and cytotoxicity evaluation against liver cancer cell lines. Journal of Taibah University for Science 2022. [DOI: 10.1080/16583655.2022.2135805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ghadah F. Aljohani
- Chemistry Department, College of Science, Taibah University, Al-Madinah Al Munawarah, Saudi Arabia
| | - Tariq Z. Abolibda
- Chemistry Department, Faculty of Science, Islamic University of Madinah, Madinah, Saudi Arabia
| | - Mohammad Alhilal
- Department of Nursing, Faculty of Health Sciences, Mardin Artuklu University, Mardin, Turkey
| | - Jehan Y. Al-Humaidi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Suzan Alhilal
- Department of Chemistry, Faculty of Science, Albaath University, Erzurum, Turkey
| | - Hoda A. Ahmed
- Department of Chemistry, Faculty of Science, Cairo University, Cairo, Egypt
| | - Sobhi M. Gomha
- Chemistry Department, Faculty of Science, Islamic University of Madinah, Madinah, Saudi Arabia
- Department of Chemistry, Faculty of Science, Cairo University, Cairo, Egypt
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7
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Abolibda TZ, Fathalla M, Aljohani GF, Zayed EM, Gomha SM. Synthesis and in Silico Antiviral Activity of Novel Bioactive Thiobarbituric Acid Based Hydrazones and Pyrazoles against SARS-CoV-2 Main Protease (Mpro). Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2138922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- Tariq Z. Abolibda
- Chemistry Department, Faculty of Science, Islamic University of Madinah, Madinah, Saudi Arabia
| | - Maher Fathalla
- Chemistry Department, Faculty of Science, Islamic University of Madinah, Madinah, Saudi Arabia
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig, Egypt
| | - Ghadah F. Aljohani
- Chemistry Department, College of Science, Taibah University, Al-Madinah Al Munawarah, Saudi Arabia
| | - Ehab M. Zayed
- Department of Green Chemistry, National Research Centre, Dokki, Giza, Egypt
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Cairo, Egypt
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8
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Gomha SM, Riyadh SM, Abdellattif MH, Abolibda TZ, Abdel-aziz HM, Nayl AA, Elgohary AM, Elfiky AA. Synthesis and In Silico Study of Some New bis-[1,3,4]thiadiazolimines and bis-Thiazolimines as Potential Inhibitors for SARS-CoV-2 Main Protease. Curr Issues Mol Biol 2022; 44:4540-4556. [PMID: 36286026 PMCID: PMC9600414 DOI: 10.3390/cimb44100311] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 06/25/2022] [Accepted: 06/26/2022] [Indexed: 11/29/2022] Open
Abstract
A novel series of bis-[1,3,4]thiadiazolimines, and bis-thiazolimines, with alkyl linker, were synthesized through general routes from cyclization of 1,1′-(hexane-1,6-diyl)bis(3-phenylthiourea) and hydrazonoyl halides or α-haloketones, respectively. Docking studies were applied to test the binding affinity of the synthesized products against the Mpro of SARS-CoV-2. The best compound, 5h, has average binding energy (−7.50 ± 0.58 kcal/mol) better than that of the positive controls O6K and N3 (−7.36 ± 0.34 and −6.36 ± 0.31 kcal/mol). Additionally, the docking poses (H-bonds and hydrophobic contacts) of the tested compounds against the Mpro using the PLIP web server were analyzed.
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Affiliation(s)
- Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia
- Correspondence: (S.M.G.); (A.A.E.)
| | - Sayed M. Riyadh
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia
| | - Magda H. Abdellattif
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Tariq Z. Abolibda
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia
| | - Hassan M. Abdel-aziz
- Department of Chemistry, Faculty of Science, Bani Suef University, Bani Suef 62521, Egypt
| | - AbdElAziz. A. Nayl
- Department of Chemistry, College of Science, Jouf University, Sakaka 72341, Saudi Arabia
| | - Alaa M. Elgohary
- Department of Biophysics, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Abdo A. Elfiky
- Department of Biophysics, Faculty of Science, Cairo University, Giza 12613, Egypt
- Correspondence: (S.M.G.); (A.A.E.)
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9
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Abstract
Triazoles and their fused derivatives are regarded as one of the most pharmacologically significant pillars due to their potent, broad and numerous activities. This current review presents recent progress in the synthetic utility of 3-substituted-4-amino-5-mercapto[1,2,4]triazoles as building blocks for a diverse range of fused [1,2,4]triazoles with pharmacological interest eg. pyrazolo-triazoles, triazolo-thiadiazoles, triazolo-triazoles, triazolo-thiadiazines, triazolo-triazines, triazolo-tetrazines, triazolo-thiadiazepines, and others. The biological activity of some triazoles and their fused derivatives are also presented. This suggests that triazoles can be particularly promising synthons in synthesis of functionalized heterocyclic compounds used in the design of novel highly effective pharmaceuticals with a broad spectrum of bioresponses. All of these topics are drawn in this review during the period from 2000 to 2020.
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Affiliation(s)
- Sayed M. Riyadh
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah, 30002, Saudi Arabia
| | - Tariq Z. Abolibda
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah, 42351 Saudi Arabia
| | - Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, KFU, Hofuf, Saudi Arabia
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-suef, Egypt
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah, 42351 Saudi Arabia
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10
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Al-Mutabagani LA, Alshabanah LA, Gomha SM, Abolibda TZ, Shaban M, Ahmed HA. Synthesis and Mesomorphic and Electrical Investigations of New Furan Liquid Crystal Derivatives. Front Chem 2021; 9:711862. [PMID: 34646810 PMCID: PMC8503887 DOI: 10.3389/fchem.2021.711862] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 07/21/2021] [Indexed: 11/13/2022] Open
Abstract
New homologues set liquid crystalline materials, based on furfural derivatives, namely, (E)-4-((furan-2-ylmethylene)amino)phenyl 4-alkoxybenzoate (Fn), were synthesized and investigated for their mesomorphic and optical characteristics. The prepared homologues series constitutes three derivatives that bear different terminal flexible alkyl chain lengths that vary between 6 and 12 carbons and attached to the phenyl ring linked to the ester group. A furfural moiety is introduced into the other terminal of the molecular structure. Mesomorphic characterizations of the prepared derivatives were measured using differential scanning calorimetry (DSC) and polarized optical microscopy (POM). Molecular structures were elucidated via elemental analyses, FTIR, and NMR spectroscopy. DSC and POM showed that all the synthesized furfural derivatives are purely nematogenic, exhibiting an enantiotropic nematic (N) mesophase, except for the longest chain derivative (F12) that is dimorphic possessing a monotropic smectic A phase and an enantiotropic N mesophase. Results indicated that the incorporation of the heterocyclic furfural ring into the molecular skeleton affected both the mesophase range and stability of investigated homologue. Analysis of the optical properties revealed that the shortest chain compound (F6) possesses two direct band gaps, at 2.73 and 3.64 eV, in addition to higher absorption than the higher homologues, F10 and F12. On the other hand, all the synthesized homologues (Fn) showed Ohmic behaviors, with electric resistances in the GΩ range. The values of the electrical resistances are 103.71, 12.91, and 196.85 GΩ at 0.05 V for F6, F10, and F12, respectively.
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Affiliation(s)
- Laila A Al-Mutabagani
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Latifah A Alshabanah
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Sobhi M Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Cairo, Egypt.,Chemistry Department, Faculty of Science, Islamic University of Madinah, Al-Madinah, Al-Munawwarah, Saudi Arabia
| | - Tariq Z Abolibda
- Chemistry Department, Faculty of Science, Islamic University of Madinah, Al-Madinah, Al-Munawwarah, Saudi Arabia
| | - Mohamed Shaban
- Nanophotonics and Applications Labs, Department of Physics, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt.,Department of Physics, Faculty of Science, Islamic University in Almadinah Almonawara, Medina, Saudi Arabia
| | - Hoda A Ahmed
- Department of Chemistry, Faculty of Science, Cairo University, Cairo, Egypt.,Chemistry Department, College of Sciences, Yanbu, Taibah University, Yanbu, Saudi Arabia
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11
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Gomha SM, Ahmed HA, Shaban M, Abolibda TZ, Alharbi KA, Alalawy HH. New nematogenic conical-shaped supramolecular H-bonded complexes for solar energy investigations. Sci Rep 2021; 11:17622. [PMID: 34475511 PMCID: PMC8413331 DOI: 10.1038/s41598-021-97126-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 08/20/2021] [Indexed: 02/07/2023] Open
Abstract
New conical-shaped geometrical supramolecular H-bonded liquid crystal complexes were formed through 1:2 intermolecular interactions of H-bonding between flexible core (adipic acid, A) and lateral chloro-substituted azopyridines (Bn). The chains of the terminally alkoxy substituted base (n) were changed between 8 and 16 carbons. Mesomorphic and optical examinations of the prepared complexes were measured via differential scanning calorimetry (DSC) and polarizing optical microscopy (POM). Fourier-transform infrared spectroscopy (FT-IR) was used to confirm the Fermi bands of the H- bonding interactions. Induced nematogenic mesophases that cover the whole lengths of alkoxy-chains were detected. The non-linear geometries of the designed supramolecular complexes were also confirmed via Density functional theory (DFT) calculations. It was found that the length of terminal alkoxy chain of the base moiety highly affects the geometrical structure of the investigated complexes. Moreover, it increases the thermodynamic energy and influences the geometrical parameters. The electrical properties of each of the acid component (A), the base (B16) and their 1:2 complex (A/2B16) were evaluated using the Keithley measurement-source unit. The optical properties studies showed that the influences in the optical absorption and the reduction of the energy gap of the complex compared to its individual components made the resulted supramolecular H-bonded complex soft material suitable for solar energy investigations.
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Affiliation(s)
- Sobhi M. Gomha
- grid.443662.1Chemistry Department, Faculty of Science, Islamic University of Madinah, Al-Madinah Al-Munawwarah, 42351 Saudi Arabia
| | - Hoda A. Ahmed
- grid.7776.10000 0004 0639 9286Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613 Egypt ,grid.412892.40000 0004 1754 9358Chemistry Department, College of Sciences, Yanbu, Taibah University, Yanbu, 30799 Saudi Arabia
| | - Mohamed Shaban
- grid.443662.1Department of Physics, Faculty of Science, Islamic University of Madinah, Al-Madinah Al-Munawwarah, 42351 Saudi Arabia
| | - Tariq Z. Abolibda
- grid.443662.1Chemistry Department, Faculty of Science, Islamic University of Madinah, Al-Madinah Al-Munawwarah, 42351 Saudi Arabia
| | - Khalid Abdulaziz Alharbi
- grid.443662.1Chemistry Department, Faculty of Science, Islamic University of Madinah, Al-Madinah Al-Munawwarah, 42351 Saudi Arabia
| | - Hafsa H. Alalawy
- grid.7776.10000 0004 0639 9286Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613 Egypt
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12
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Alamro FS, Gomha SM, Shaban M, Altowyan AS, Abolibda TZ, Ahmed HA. Author Correction: Optical investigations and photoactive solar energy applications of new synthesized Schiff base liquid crystal derivatives. Sci Rep 2021; 11:17714. [PMID: 34465832 PMCID: PMC8408250 DOI: 10.1038/s41598-021-97264-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Fowzia S Alamro
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - Sobhi M Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Cairo, 12613, Egypt.,Chemistry Department, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, 42351, Saudi Arabia
| | - Mohamed Shaban
- Nanophotonics and Applications Labs, Department of Physics, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt.,Department of Physics, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, 42351, Saudi Arabia
| | - Abeer S Altowyan
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - Tariq Z Abolibda
- Chemistry Department, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, 42351, Saudi Arabia
| | - Hoda A Ahmed
- Department of Chemistry, Faculty of Science, Cairo University, Cairo, 12613, Egypt. .,Chemistry Department, College of Sciences, Taibah University, Yanbu, 30799, Saudi Arabia.
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13
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Alamro FS, Gomha SM, Shaban M, Altowyan AS, Abolibda TZ, Ahmed HA. Optical investigations and photoactive solar energy applications of new synthesized Schiff base liquid crystal derivatives. Sci Rep 2021; 11:15046. [PMID: 34294823 PMCID: PMC8298406 DOI: 10.1038/s41598-021-94533-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 07/07/2021] [Indexed: 02/06/2023] Open
Abstract
New homologues series of liquid crystalline materials namely, (E)-3-methoxy-4-[(p-tolylimino)methyl]phenyl 4-alkloxybenzoates (I-n), were designed and evaluated for their mesomorphic and optical behavior. The prepared series constitutes three members that differ from each other by the terminally attached alkoxy chain group, these vary between 6 and 12 carbons. A laterally OCH3 group is incorporated into the central benzene ring in meta position with respect to the ester moiety. Mesomorphic characterizations of the prepared derivatives are conducted using differential scanning-calorimetry (DSC), polarized optical-microscopy (POM). Molecular structures were elucidated by elemental analyses and NMR spectroscopy. DSC and POM investigations revealed that all the synthesized derivatives are purely nematogenic exhibiting only nematic (N) mesophase, except for the longest chain derivative (I-12) that is dimorphic possesses smectic A and N phases. Moreover, all members of the group have a wide mesomorphic range with high thermal nematic stability. A comparative study was established between the present derivative (I-6) and their previously prepared isomer. The results indicated that the location exchange of the polar compact group (CH3) influences the N mesophase stability and range. The electrical measurements revealed that all synthesized series I-n show Ohmic behaviors with effective electric resistances in the GΩ range. Under white light illumination, the effective electric conductivity for the compound I-8 is five times that obtained in dark conditions. This derivative also showed two direct optical band gaps in the UV and visible light range. In addition, I-6 has band energy gaps of values 1.07 and 2.79 eV, which are suitable for solar energy applications.
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Affiliation(s)
- Fowzia S. Alamro
- grid.449346.80000 0004 0501 7602Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671 Saudi Arabia
| | - Sobhi M. Gomha
- grid.7776.10000 0004 0639 9286Department of Chemistry, Faculty of Science, Cairo University, Cairo, 12613 Egypt ,Chemistry Department, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, 42351 Saudi Arabia
| | - Mohamed Shaban
- grid.411662.60000 0004 0412 4932Nanophotonics and Applications Labs, Department of Physics, Faculty of Science, Beni-Suef University, Beni-Suef, 62514 Egypt ,Department of Physics, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, 42351 Saudi Arabia
| | - Abeer S. Altowyan
- grid.449346.80000 0004 0501 7602Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671 Saudi Arabia
| | - Tariq Z. Abolibda
- Chemistry Department, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, 42351 Saudi Arabia
| | - Hoda A. Ahmed
- grid.7776.10000 0004 0639 9286Department of Chemistry, Faculty of Science, Cairo University, Cairo, 12613 Egypt ,grid.412892.40000 0004 1754 9358Chemistry Department, College of Sciences, Taibah University, Yanbu, 30799 Saudi Arabia
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14
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Gomha SM, Abdel‐aziz HM, Abolibda TZ, Hassan SA, Abdalla MM. Green synthesis, molecular docking and pharmacological evaluation of new triazolo‐thiadiazepinylcoumarine derivatives as sedative‐hypnotic scaffold. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3827] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sobhi M. Gomha
- Department of Chemistry, Faculty of ScienceUniversity of Cairo Giza Egypt
- Chemistry Department, Faculty of ScienceIslamic University in Almadinah Almonawara Almadinah Almonawara Saudi Arabia
| | | | - Tariq Z. Abolibda
- Chemistry Department, Faculty of ScienceIslamic University in Almadinah Almonawara Almadinah Almonawara Saudi Arabia
| | - Shaimaa A. Hassan
- Department of Chemistry, Faculty of ScienceUniversity of Cairo Giza Egypt
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15
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Abstract
Deep eutectic solvents are shown to be effective modifiers to enable polyethylene to be blended with starch to make a plastic with which can be more easily degraded.
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Affiliation(s)
| | | | - Wanwan Qu
- Department of Chemistry
- University of Leicester
- UK
| | - William R. Wise
- Institute for Creative Leather Technologies
- University of Northampton
- Northampton
- UK
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16
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Abstract
Simple quaternary ammonium salts combined with glycols form effective modifiers that produce flexible thermoplastic starch which has mechanical properties comparable to some polyolefin plastics.
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Affiliation(s)
| | | | | | - Franziska Emmerling
- BAM Bundesanstalt für Materialforschung und –prüfung 1.3 Strukturanalytik
- Berlin-Adlershof, Germany
| | - Denis Lourdin
- UR1268 Biopolymères Interactions Assemblages
- INRA
- F-44300 Nantes, France
| | - Eric Leroy
- LUNAM Université
- CNRS
- GEPEA
- 44606 St Nazaire Cedex, France
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