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Uddin J, Ullah S, Halim SA, Waqas M, Ibrar A, Khan I, Bin Muhsinah A, Khan A, Al-Harrasi A. Triazolothiadiazoles and Triazolothiadiazines as New and Potent Urease Inhibitors: Insights from In Vitro Assay, Kinetics Data, and In Silico Assessment. ACS OMEGA 2023; 8:31890-31898. [PMID: 37692208 PMCID: PMC10483676 DOI: 10.1021/acsomega.3c03546] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 08/08/2023] [Indexed: 09/12/2023]
Abstract
Hyperactivity of the urease enzyme induces the pathogenesis of peptic ulcers and gastritis. The identification of new urease inhibitors can reduce the activity of urease. Therefore, in the current study, we have evaluated 28 analogues of triazolothiadiazole and triazolothiadiazine heteroaromatics for their in vitro urease inhibitory efficacy. All the tested compounds displayed a remarkable inhibitory potential ranging from 3.33 to 46.83 μM. Among them, compounds 5k and 5e emerged as lead inhibitors with IC50 values of 3.33 ± 0.11 and 3.51 ± 0.49 μM, respectively. The potent inhibitory potential of these compounds was ∼6.5-fold higher than that of the marketed drug thiourea (IC50 = 22.45 ± 0.30 μM). The mechanistic insights from kinetics experiments of the highest potent inhibitors (4g, 5e, and 5k) revealed a competitive type of inhibition with ki values 2.25 ± 0.0028, 3.11 ± 0.0031, and 3.62 ± 0.0034 μM, respectively. In silico modeling was performed to investigate the binding interactions of potent inhibitors with the enzyme active site residues, which strongly supported our experimental results. Furthermore, ADME analysis also showed good druglikeness properties demonstrating the potential of these compounds to be developed as lead antiurease agents.
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Affiliation(s)
- Jalal Uddin
- Department
of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha 62529, Kingdom
of Saudi Arabia
| | - Saeed Ullah
- Natural
and Medical Sciences Research Center, University
of Nizwa, Birkat-ul-Mouz 616 Nizwa, Sultanate of Oman
| | - Sobia Ahsan Halim
- Natural
and Medical Sciences Research Center, University
of Nizwa, Birkat-ul-Mouz 616 Nizwa, Sultanate of Oman
| | - Muhammad Waqas
- Natural
and Medical Sciences Research Center, University
of Nizwa, Birkat-ul-Mouz 616 Nizwa, Sultanate of Oman
| | - Aliya Ibrar
- Department
of Chemistry, Faculty of Natural Sciences, The University of Haripur, Haripur, KPK 22620, Pakistan
| | - Imtiaz Khan
- Department
of Chemistry and Manchester Institute of Biotechnology,The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K.
| | - Abdullatif Bin Muhsinah
- Department
of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha 62529, Kingdom
of Saudi Arabia
| | - Ajmal Khan
- Natural
and Medical Sciences Research Center, University
of Nizwa, Birkat-ul-Mouz 616 Nizwa, Sultanate of Oman
| | - Ahmed Al-Harrasi
- Natural
and Medical Sciences Research Center, University
of Nizwa, Birkat-ul-Mouz 616 Nizwa, Sultanate of Oman
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Rana J, Yadav J, Chaudhary R. TFE assisted mechanochemical synthesis of new pyrazolones from Meldrum acid carbothioamides-Experimental and theoretical studies. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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3
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Taha M, Imran S, Rahim F, Uddin N, Iqbal N, Khan KM, Farooq RK, Alomari M, Islam I, Algheribe S. Discovering biological efficacy of new thiadiazole as effective inhibitors of urease, glycation, and (DPPH) scavengers: Biochemical and in silico study. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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4
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Gholivand K, Faraghi M, Fallah N, Babaei A, Pirastehfar F, Dusek M, Eigner V, Salimi F. Therapeutic potential of phospho-thiadiazole derivatives as anti-glioblastoma agents: synthesis, biological assessment and computational study. Bioorg Chem 2022; 129:106123. [PMID: 36108588 DOI: 10.1016/j.bioorg.2022.106123] [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: 05/21/2022] [Revised: 08/20/2022] [Accepted: 08/31/2022] [Indexed: 11/24/2022]
Abstract
In this study, three new phospho thiadiazole compounds (A, F and W) were investigated as possible cytotoxic agents. The compounds were synthesised and characterised by using spectroscopy methods. The crystal structure of compound A was investigated using X-ray crystallography, since the title compounds can exist as different tautomeric forms, their conformational and geometrical aspects were investigated computationally by the DFT method. NBO analysis suggested that these compounds can function as appropriate ligands for the reaction with the nitrogen bases of DNA. All the synthesised compounds were evaluated in vitro for their cytotoxic activities against cancer in the human glioblastoma cell lines (U-251) using the MTT assay. According to the annexin V-FITC/PI results, a combination of synthesised compounds with ReoT3D showed a synergistic effect to increase the percentage of apoptotic cells. Molecular docking study for A (the most toxic compound) showed how it interacts with DNA. Both in vitro and in silico results showed that A has promising inhibitory potential (IC50: 48.1 ± 0.3 μM) and binding energy (-6.67 kcal/mol).
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Affiliation(s)
- Khodayar Gholivand
- Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Mohammad Faraghi
- Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, Tehran, Iran
| | - Nasrin Fallah
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Abouzar Babaei
- Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Foroogh Pirastehfar
- Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, Tehran, Iran
| | - Michal Dusek
- Institute of Physics ASCR, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Vaclav Eigner
- Institute of Physics ASCR, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Fatemeh Salimi
- Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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Saeed A, Khan SU, Saeed M, Shabir G, Hasan A, Khera RA, El-Seedi H, Halim SA, Khan A, Al-Harrasi A, Iqbal J. Synthesis of novel hybrid pharmacophore of N-((4-sulfamoylphenyl)carbamothioyl)alkanamides as potent carbonic anhydrase-II and 15-lipoxygenase inhibitors. Drug Dev Res 2021; 83:745-754. [PMID: 34897776 DOI: 10.1002/ddr.21906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/17/2021] [Accepted: 11/19/2021] [Indexed: 11/07/2022]
Abstract
A series of N-((4-sulfamoylphenyl)carbamothioyl)alkanamides (5a-j) were synthesized by the reaction of sulphanilamide in dry acetone with freshly prepared alkyl and acyl isothiocyanates (5a-j). The structures of products were confirmed by IR, 1 H, and 13 C NMR. The synthesized compounds were screened as inhibitors of the bovine erythrocyte carbonic anhydrase isoform II (bCA II) and 15-lipoxygenase enzyme (15-LOX). Most of the derivatives showed significant activity against bCA-II while only few compounds were found active against 15-LOX. Molecular docking studies of most active compounds were carried out against bCA II as well as 15-LOX to rationalize the binding mode and interactions of compound in the active sites. Additionally, the pharmacokinetic properties of the compounds were predicted through computational tools, which reflect that these compounds possess acceptable pharmacokinetic profile and good drug-likeness.
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Affiliation(s)
- Aamer Saeed
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Shafi Ullah Khan
- Centre for Advanced Drug Research, COMSATS Institute of Information Technology, Abbottabad, Pakistan
- Department of Pharmacy, Abasyn University, Peshawar, Pakistan
| | - Maria Saeed
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Ghulam Shabir
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Abbas Hasan
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | | | - Hesham El-Seedi
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang, China
- International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing, Jiangsu Education Department, Jiangsu University, China
| | - Sobia Ahsan Halim
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
| | - Ajmal Khan
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
| | - Jamshed Iqbal
- Centre for Advanced Drug Research, COMSATS Institute of Information Technology, Abbottabad, Pakistan
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Ning K, Zhou LL, Zhao B. A novel aminothiazole-based cyclotriphosphazene derivate towards epoxy resins for high flame retardancy and smoke suppression. Polym Degrad Stab 2021. [DOI: 10.1016/j.polymdegradstab.2021.109651] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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7
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Jian RK, Ai YF, Xia L, Zhao LJ, Zhao HB. Single component phosphamide-based intumescent flame retardant with potential reactivity towards low flammability and smoke epoxy resins. JOURNAL OF HAZARDOUS MATERIALS 2019; 371:529-539. [PMID: 30877866 DOI: 10.1016/j.jhazmat.2019.03.045] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 02/18/2019] [Accepted: 03/09/2019] [Indexed: 05/03/2023]
Abstract
To develop a low flammability and smoke epoxy resin, benzothiazole-based phosphamide (DOP-ABZ) was prepared through the reaction of 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphinane-2-oxide (DOP) and 2-aminobenzothiazole (ABZ). Intumescent flame-retardant (IFR) epoxy thermosets (EP) with different loadings of DOP-ABZ were prepared according to the assigned curing procedure. The thermal stability of IFR-EP decreased as compared to that of EP, but the flame retardancy of IFR-EP were greatly improved. EP/20 wt% DOP-ABZ passed UL-94 V-0 rating and got a high LOI value of 28.3%. Meanwhile, cone calorimeter tests showed that the heat release rate greatly decreased from 1139.7 kW/m2 of EP to 238.9 kW/m2, and the productions of smoke/toxic gases including CO and CO2 were also remarkably reduced. Furthermore, the mechanical strength of EP/17.5 wt% DOP-ABZ was enhanced to some extent, i.e. tensile strength increased from 71 MPa of EP to 81 MPa, flexural strength from 98 to 119 MPa, and impact strength from 22 to 32 kJ/m2. Finally, the flame-retardant mechanism was disclosed that DOP-ABZ produced phosphorus-containing acids so as to dehydrate and carbonize epoxy macromolecules leading to the formation of graphitized chars. Meanwhile, the nitrogen/sulfur-containing intermediates simultaneously released noncombustible gases to expand the as-formed char, and then interrupt the combustion reaction.
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Affiliation(s)
- Rong-Kun Jian
- Fujian Provincial Key Laboratory of Polymer Materials, Fujian Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China.
| | - Yuan-Fang Ai
- Fujian Provincial Key Laboratory of Polymer Materials, Fujian Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
| | - Long Xia
- Fujian Provincial Key Laboratory of Polymer Materials, Fujian Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
| | - Li-Jing Zhao
- Fujian Provincial Key Laboratory of Polymer Materials, Fujian Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
| | - Hai-Bo Zhao
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610064, China.
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Saeed A, Arif M, Erben MF, Flörke U, Simpson J. One-pot synthesis, quantum chemical calculations and X-ray diffraction studies of thiazolyl-coumarin hybrid compounds. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 198:290-296. [PMID: 29558728 DOI: 10.1016/j.saa.2018.03.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/09/2018] [Accepted: 03/12/2018] [Indexed: 06/08/2023]
Abstract
Two closely related hybrid species containing both, thiazolyl and coumarin groups, were synthesized by using two different one-pot procedures from a common precursor. The reaction of α-bromoacetylcoumarin with thioacetamide in methanol furnished 3‑(2‑methylthiazol‑4‑yl)‑2H‑chromen‑2‑one (2), whereas refluxing α‑bromoacetylcoumarin with potassium thiocyanate in ethanol afforded 3‑(2‑ethoxythiazol‑4‑yl)‑2H‑chromen‑2‑one (3). Both derivatives were fully characterized by spectroscopic methods, elemental analysis and X-ray diffraction studies. Intramolecular C4H⋯N and C5'H⋯OC hydrogen bonds between the heterocycles determine the conformational behavior. The co-planarity of the coumarin and thiazolyl rings favors the occurrence of two remote orbital interactions involving the oxygen and nitrogen lone pairs and the corresponding σ*CH electron acceptor, as demonstrated by Natural Bond Orbital population analysis. The 2-substitution of the thiazol‑4‑yl group has little effect on the molecular structures but causes significant differences in the crystal packing of the two compounds.
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Affiliation(s)
- Aamer Saeed
- Department of Chemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan.
| | - Mubeen Arif
- Department of Chemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan
| | - Mauricio F Erben
- CEQUINOR (UNLP, CONICET-CCT La Plata), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 1465, 1900 La Plata, Argentina.
| | - Ulrich Flörke
- Department of Chemistry, University of Paderborn, 33098 Paderborn, Germany
| | - Jim Simpson
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
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Cairo RR, Stevens AMP, de Oliveira TD, Batista AA, Castellano EE, Duque J, Soria DB, Fantoni AC, Corrêa RS, Erben MF. Understanding the conformational changes and molecular structure of furoyl thioureas upon substitution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 176:8-17. [PMID: 28063310 DOI: 10.1016/j.saa.2016.12.038] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 12/16/2016] [Accepted: 12/24/2016] [Indexed: 06/06/2023]
Abstract
1-Acyl thioureas [R1C(O)NHC(S)NR2R3] are shown to display conformational flexibility depending on the degree of substitution at the nitrogen atom. The conformational landscape and structural features for two closely related thioureas having R1=2-furoyl have been studied. The un-substituted 2-furoyl thiourea (I) and its dimethyl analogue, i.e. 1-(2-furoyl)-3,3-dimethyl thiourea (II), have been synthesized and fully characterized by spectroscopic (FT-IR, 1H and 13C NMR) and elemental analysis. According to single crystal X-ray diffraction analysis, compounds I and II crystallize in the monoclinic space group P21/c. In the compound I, the trans-cis geometry of the almost planar thiourea unit is stabilized by intramolecular NH⋯OC hydrogen bond between the H atom of the cis thioamide and the carbonyl O atom. In compound II, however, the acyl thiourea group is non-planar, in good agreement with the potential energy curve computed at the B3LYP/6-31+G(d,p) level of approximation. Centrosymmetric dimers generated by intermolecular NH⋯SC hydrogen bond forming R22(8) motif are present in the crystals. Intermolecular interactions have been rationalized in terms of topological partitions of the electron distributions and Hirshfeld surface analysis, which showed the occurrence of S⋯H, O⋯H and H⋯H contacts that display an important role to crystal packing stabilization of both thiourea derivatives.
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Affiliation(s)
- Raúl Ramos Cairo
- Laboratorio de Síntesis Orgánica, Facultad de Química, Universidad de La Habana, La Habana, Cuba
| | - Ana María Plutín Stevens
- Laboratorio de Síntesis Orgánica, Facultad de Química, Universidad de La Habana, La Habana, Cuba.
| | | | - Alzir A Batista
- Departamento de Química, Universidade Federal de São Carlos, São Carlos, SP, Brazil
| | - Eduardo E Castellano
- Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos, SP, Brazil
| | - Julio Duque
- Instituto de Ciencia y Tecnología de Materiales (IMRE), Universidad de La Habana, Havana, Cuba
| | - Delia B Soria
- CEQUINOR (UNLP-CONICET, CCT La Plata), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 962 (1900), La Plata, Argentina
| | - Adolfo C Fantoni
- Instituto de Física La Plata, Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 49 y 115, La Plata, Buenos Aires, Argentina
| | - Rodrigo S Corrêa
- Departamento de Química (DeQui), Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto - UFOP, Ouro Preto, Brazil
| | - Mauricio F Erben
- CEQUINOR (UNLP-CONICET, CCT La Plata), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 962 (1900), La Plata, Argentina.
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Novel 2-amino-1,3,4-thiadiazoles and their acyl derivatives: Synthesis, structural characterization, molecular docking studies and comparison of experimental and computational results. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.01.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Saeed A, Khurshid A, Bolte M, Fantoni AC, Erben MF. Intra- and intermolecular hydrogen bonding and conformation in 1-acyl thioureas: an experimental and theoretical approach on 1-(2-chlorobenzoyl)thiourea. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 143:59-66. [PMID: 25710115 DOI: 10.1016/j.saa.2015.02.042] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 02/02/2015] [Accepted: 02/09/2015] [Indexed: 06/04/2023]
Abstract
The vibrational analysis (FT-IR and FT-Raman) for the new 1-(2-chlorobenzoyl)thiourea species suggests that strong intramolecular interactions affect the conformational properties. The X-ray structure determination corroborates that an intramolecular N-H⋯OC hydrogen bond occurs between the carbonyl (-CO) and thioamide (-NH2) groups. Moreover, periodic system electron density and topological analysis have been applied to characterize the intermolecular interactions in the crystal. Extended N-H⋯SC hydrogen-bonding networks between both the thioamide (N-H) and carbamide (NH2) groups and the thiocarbonyl bond (CS) determine the crystal packing. The Natural Bond Orbital (NBO) population analysis demonstrates that strong hyperconjugative remote interactions are responsible for both, intra and intermolecular interactions. The Atom in Molecule (AIM) results also show that the N-H⋯Cl intramolecular hydrogen bond between the 2-Cl-phenyl ring and the amide group characterized in the free molecule changes to an N⋯Cl interaction as a consequence of crystal packing.
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Affiliation(s)
- Aamer Saeed
- Department of Chemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan.
| | - Asma Khurshid
- Department of Chemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan
| | - Michael Bolte
- Institut für Anorganische Chemie, J.W.-Goethe-Universität, Max-von-Laue-Str. 7, D-60438 Frankfurt/Main, Germany
| | - Adolfo C Fantoni
- Instituto de Física La Plata, Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 49 y 115, La Plata, Buenos Aires, Argentina
| | - Mauricio F Erben
- CEQUINOR (UNLP, CONICET-CCT La Plata), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 962 (1900), La Plata, Buenos Aires, Argentina.
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Gholivand K, Molaei F, Hosseini M. Phosphoramides bearing isoxazole derivative: spectroscopic and structural characterization, study of hydrogen-bonding interactions and two lanthanide complexes (LnIII = Ce and Eu). ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2015; 71:176-185. [PMID: 25827370 DOI: 10.1107/s2052520615003297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Accepted: 02/16/2015] [Indexed: 06/04/2023]
Abstract
In this study, the synthesis and spectroscopic characterization of new phosphoramides based on 3-amino-5-methylisoxazole with the formula R2P(O)[NH-C4H4NO], R = C6H5O (1), C6H5 (2), RP(O)[NH-C4H4NO]2, R = C6H5O (3), CH3-C6H4O (4), C6H5NH (5), (C6H5)ClP(O)[NH-C4H4NO] (6) and two lanthanide complexes [Ln(2)2(NO3)3(EtOH)]·EtOH, Ln(III) = Ce (7) and Eu (8), have been reported. The structural study of (3) shows the presence of two conformers (crystallographically independent molecules) in the crystalline lattice, caused by different orientations of the phenyl and isoxazole rings. For (3), the intermolecular interactions have been studied by Hirshfeld surface analysis and fingerprint plots. Furthermore, the electronic and energy aspects of hydrogen bonds between molecules of (3) have been explored by density functional theory (DFT) calculations. X-ray crystallography of complexes (7) and (8) reveals that two phosphoramide ligands take part in coordination to the metal, one as monodentate from O(phosphoryl), and the other one as chelate through O(phosphoryl) and N(ring). The complexes are also composed of two conformers in the solid-state structure. Quantum theory of atoms in molecules (QTAIM) analysis discloses the electrostatic nature of the Ln-ligand interaction.
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Affiliation(s)
- Khodayar Gholivand
- Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, 14115-175, Tehran, Iran
| | - Foroogh Molaei
- Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, 14115-175, Tehran, Iran
| | - Mahdieh Hosseini
- Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, 14115-175, Tehran, Iran
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Chen X, Hu Y, Gao J. Tautomers of 2-aminothiazole molecules in aqueous solutions explored by Raman, SERS and DFT methods. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.06.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Saeed A, Flörke U, Erben MF. A review on the chemistry, coordination, structure and biological properties of 1-(acyl/aroyl)-3-(substituted) thioureas. J Sulphur Chem 2013. [DOI: 10.1080/17415993.2013.834904] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Shariatinia Z, Sheykhpour A, Yousefi M. New Phosphoramidates: Spectroscopic Study and Ab Initio Computations. PHOSPHORUS SULFUR 2011. [DOI: 10.1080/10426507.2010.532840] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Z. Shariatinia
- a Department of Chemistry , Amirkabir University of Technology , Tehran, Iran
| | - A. Sheykhpour
- b Department of Chemistry , Islamic Azad University, Shahre-Rey Branch , Tehran, Iran
| | - M. Yousefi
- b Department of Chemistry , Islamic Azad University, Shahre-Rey Branch , Tehran, Iran
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Saeed A, Erben MF, Shaheen U, Flörke U. Synthesis, structural and vibrational properties of 1-(4-Fluorobenzoyl)-3-(isomeric fluorophenyl)thioureas. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.05.051] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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