1
|
Dutta A, Mondal S, Singh PK, Ray B. Single crystal investigation, Hirshfeld surface and interaction energy framework analyses of structure-directing interactions within two isomorphous Schiff's base multicomponent salts. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133224] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
2
|
Siewert R, Zherikova KV, Verevkin SP. Non-Covalent Interactions in Molecular Systems: Thermodynamic Evaluation of the Hydrogen-Bond Strength in Amino-Ethers and Amino-Alcohols. Chemistry 2022; 28:e202200080. [PMID: 35293642 PMCID: PMC9325416 DOI: 10.1002/chem.202200080] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Indexed: 12/04/2022]
Abstract
The intramolecular hydrogen bond (intra-HB) is one of the best-known examples of non-covalent interactions in molecules. Among the different types of intramolecular hydrogen bonding, the NH⋅⋅⋅O hydrogen bond in amino-alcohols and amino-ethers is one of the weakest. In contrast to the strong OH⋅⋅⋅N intramolecular hydrogen bond, the strength of the NH⋅⋅⋅O bond can hardly be measured with conventional spectroscopic methods, even for simple amino-alcohols, since the band belonging to the NH⋅⋅⋅O conformer merges with the free OH band. In this work, we developed a combination of G4 calculations, and a method based on experimental vaporization enthalpies to determine the NH⋅⋅⋅O hydrogen bonding strength. The archetypal compounds for this study are 2-amino-1-ethanol and 3-amino-1-propanol as well as their respective methoxy analogs. Based on these molecules, different series were studied to investigate various factors influencing NH⋅⋅⋅O intra-HB strength. In the first series, the influence of alkylation near the hydroxy or methoxy group and the amino group in sterically hindered aminoalcohols was examined. In the second series, the influence of alkylation of the amino-group was investigated. In the third series, the effect of extending the alkyl chain between functional groups was studied.
Collapse
Affiliation(s)
- Riko Siewert
- Department of Physical Chemistry and Faculty of Interdisciplinary ResearchCompetence Centre CALORUniversity of Rostock18059RostockGermany
| | - Kseniya V. Zherikova
- Nikolaev Institute of Inorganic Chemistry of Siberian Branch of Russian Academy of Sciences630090NovosibirskRussia
| | - Sergey P. Verevkin
- Department of Physical Chemistry and Faculty of Interdisciplinary ResearchCompetence Centre CALORUniversity of Rostock18059RostockGermany
| |
Collapse
|
3
|
Daud AI, Khairul WM, Arshad S, Razak IA, González DLN, Erben MF. A Dual Approach on Experimental, Theoretical Insight of Structural Elucidation, Hirshfeld Surface Analysis, Optical and Electrochemical Properties of Acyl Thiourea-Ethynyl Hybrid Derivatives. JOURNAL OF CHEMICAL CRYSTALLOGRAPHY 2022; 52:345-358. [PMID: 35291441 PMCID: PMC8916082 DOI: 10.1007/s10870-022-00935-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 03/02/2022] [Indexed: 06/14/2023]
Abstract
UNLABELLED Hybrid moieties of ethynylated-thiourea, Th1 and Th2 have been synthesised via the addition reaction between ethynyl derivatives and 4-tert-butylbenzoyl isothiocyanate in acetone, and were characterised by selected spectroscopic methods (i.e., 1H and 13C NMR, UV-visible, FT-IR) and elemental analysis. Thermogravimetric analysis indicated that Th1 and Th2 were relatively stable up to ca. 210 °C. Single-crystal X-ray diffraction was used to identify the crystal structure of Th2 in which the centre of 1-acyl thiourea moiety (-C(O)NHC(S)NH) exhibits S conformation. The Hirshfeld surface analysis has allowed visualizing the crystal packing, which is characterised by the prolonged intermolecular N-H⋯O = C and N-H⋯S = C hydrogen-bonding interactions within Th2 molecule. Electrochemical data of both compounds correspondingly exhibit irreversible redox potential processes. Besides, frontier molecular orbitals and Natural Bond Orbital population analysis were computed at the B3LYP/6-31G (d, p) level of approximation, suggesting strong delocalization of the electronic density through a conjugated π-system involving the ethynyl-phenyl and thiourea groups. GRAPHICAL ABSTRACT Figure of molecular structure for acyl thiourea-ethynyl derivative. Two derivatives of acyl thiourea-ethynyl were synthesised and characterised by selected spectroscopic methods such as 1H and 13C NMR, UV-visible, FT-IR, elemental, thermal, electrochemical, X-ray diffraction, and density functional theory (DFT) calculation for molecular orbitals and natural bond orbital population analysis.
Collapse
Affiliation(s)
- Adibah Izzati Daud
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia
| | - Wan M. Khairul
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Suhana Arshad
- School of Physics, Universiti Sains Malaysia, 11800 USM Penang, Malaysia
| | | | - Diana L. Nossa González
- CEQUINOR (UNLP, CONICET-CCT La Plata), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv 120 N 1465, La Plata, República Argentina
| | - Mauricio F. Erben
- CEQUINOR (UNLP, CONICET-CCT La Plata), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv 120 N 1465, La Plata, República Argentina
| |
Collapse
|
4
|
Saeed A, Shabir G, Channar PA, Flörke U, Hökelek T, Erben MF. COMPUTATIONAL INVESTIGATIONS, HIRSHFELD SURFACE ANALYSIS, INTERACTION ENERGY CALCULATIONS, AND ENERGY FRAMEWORK CRYSTAL STRUCTURE OF METHYL 2-AMINO-5-HYDROXYBENZOATE. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621110111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
5
|
Ilyas S, Saeed A, Abbas Q, Ujan R, Channar PA, Shaikh IA, Hassan M, Raza H, Seo SY, Echeverría GA, Piro OE, Erben MF. Preparation, structure determination, and in silico and in vitro Elastase inhibitory properties of substituted N-([1,1′-Biphenyl]-2-ylcarbamothioyl)- Aryl/Alkyl benzamide Derivatives. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
6
|
Al-Wahaibi L, Grandhi DS, Tawfik SS, Al-Shaalan NH, Elmorsy MA, El-Emam AA, Percino MJ, Thamotharan S. Probing the Effect of Halogen Substituents (Br, Cl, and F) on the Non-covalent Interactions in 1-(Adamantan-1-yl)-3-arylthiourea Derivatives: A Theoretical Study. ACS OMEGA 2021; 6:4816-4830. [PMID: 33644590 PMCID: PMC7905817 DOI: 10.1021/acsomega.0c05793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 02/02/2021] [Indexed: 12/20/2022]
Abstract
The effect of halogen substituents (X = Br, Cl, and F) on the crystal packing and intra- and intermolecular interactions in four adamantane-thiourea hybrid derivatives is investigated using different theoretical tools. The bromo and chloro derivatives exhibit 3D isostructurality as evident from lattice parameters, molecular conformation, and crystal packing. The density functional theory study suggests that the molecular conformation of the parent (unsubstituted) and fluoro derivatives exhibits a stable low energy anti-syn conformation. In contrast, bromo and chloro derivatives adopt stable and relatively high energy minima on their potential energy surfaces. Hirshfeld surface analysis reveals the effect of halogen substituents on the intermolecular contacts. The halogen atoms mainly reduce the contribution of H···H contacts toward crystal packing. PIXEL energy analysis indicates the strong dimer formed by N-H···S hydrogen bonds in all four structures. It also revealed that a vast number of H···H contacts observed in different dimers of these structures either presented along with other conventional interactions or solely stabilize the dimeric topology. The topological parameters for intermolecular interactions in these structures suggest an intermediate bonding character between shared and closed-shell interactions for N-H···S hydrogen bonds in the parent and chloro derivatives. In contrast, the N-H···S hydrogen bond in other structures is of a closed-shell interaction. Among four derivatives, the fluoro derivative is weakly packed in the solid state based on the PIXEL method's lattice energy calculation.
Collapse
Affiliation(s)
- Lamya
H. Al-Wahaibi
- Department
of Chemistry, College of Sciences, Princess
Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Divya Sri Grandhi
- Biomolecular
Crystallography Laboratory, Department of Bioinformatics, School of
Chemical and Biotechnology, SASTRA Deemed
University, Thanjavur 613 401, India
| | - Samar S. Tawfik
- Department
of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Nora H. Al-Shaalan
- Department
of Chemistry, College of Sciences, Princess
Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Mohammed A. Elmorsy
- Department
of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Ali A. El-Emam
- Department
of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - M. Judith Percino
- Unidad
de Polímeros y Electrónica Orgánica, Instituto
de Ciencias, Benemérita Universidad
Autónoma de Puebla, Val3-Ecocampus Valsequillo, Independencia O2 Sur 50, San Pedro Zacachimalpa, Puebla CP 72960, Mexico
| | - Subbiah Thamotharan
- Biomolecular
Crystallography Laboratory, Department of Bioinformatics, School of
Chemical and Biotechnology, SASTRA Deemed
University, Thanjavur 613 401, India
| |
Collapse
|
7
|
Durosinmi LM, Fadare OA, Sanusi K, Yilmaz Y, Ceylan U, Obafemi CA. Supramolecular architecture in 1:1 cocrystal of N-carbamothioylacetamide and N, N'-thiocarbonyldiacetamide from the attempted synthesis of 1,3-diacetyl-2-thioxoimidazolidine-4,5-dione (a thioparabanic acid derivative). Heliyon 2020; 6:e05022. [PMID: 32995653 PMCID: PMC7511829 DOI: 10.1016/j.heliyon.2020.e05022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/12/2020] [Accepted: 09/18/2020] [Indexed: 11/29/2022] Open
Abstract
An attempt to synthesize thioparabanic acid as precursor to other fused heterocyclic compounds, by a microwave assisted multistep one-pot reaction yielded a co-crystal of N-carbamothioylacetamide (NCTA) and N,N'-thiocarbonyldiacetamide (NNTCA) which is being reported in this paper. The structure of N-carbamothioylacetamide and N,N'-thiocarbonyldiacetamide from the attempted synthesis of 1,3-diacetyl-2-thioxoimidazolidine-4,5-dione, C5H8N2O2S.C3H6N2OS, has triclinic (P-1) symmetry. It is of interest with respect to biological application. The structure displays inter- and intra-molecular hydrogen bonding through -C=O···H interactions. Similarly, -C=S···H hydrogen bonding interactions are present, providing additional intermolecular stability to the co-crystal. For application as a potential drug candidate, a density functional theory (DFT) simulation of the antioxidant activities of the co-crystal and its individual components (NCTA and NNTCA) has been performed. The computed redox potentials indicate that the study compounds show comparable antioxidant activities with ascorbic acid (AA) for a one electron transfer process. Meanwhile, for a two-electron process, AA showed significant antioxidant advantage over the titled compound.
Collapse
Affiliation(s)
| | | | - Kayode Sanusi
- Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
- Corresponding author.
| | - Yusuf Yilmaz
- NT Vocational School, Gaziantep University, 27310, Gaziantep, Turkey
| | - Umit Ceylan
- Department of Medical Services and Techniques, Vocational High School Health Services, Giresun University, 28100, Giresun, Turkey
| | - Craig A. Obafemi
- Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
| |
Collapse
|
8
|
Conformational and crystal structure of acyl thiourea compounds: The case of the simple (2,2-dimethyl-propionyl) thiourea derivative. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128227] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
9
|
Obradović D, Nikolić S, Milenković I, Milenković M, Jovanović P, Savić V, Roller A, Đorđić Crnogorac M, Stanojković T, Grgurić-Šipka S. Synthesis, characterization, antimicrobial and cytotoxic activity of novel half-sandwich Ru(II) arene complexes with benzoylthiourea derivatives. J Inorg Biochem 2020; 210:111164. [PMID: 32634653 DOI: 10.1016/j.jinorgbio.2020.111164] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 06/09/2020] [Accepted: 06/11/2020] [Indexed: 02/07/2023]
Abstract
Three new ruthenium(II)-arene complexes, [Ru(η6-p-cymene)(L1)Cl2] (C1) where L1 is N-((4 methoxyphenyl)carbamothioyl)benzamide; [Ru(η6-p-cymene)(L2)Cl2] (C2) where L2 is 4-(3-benzoylthioureido)benzoic acid and [Ru(η6-p-cymene)(L3)Cl2] (C3) where L3 is methyl 4-(3- benzoylthioureido)benzoate have been synthetized, characterized and evaluated for their antimicrobial and anticancer activity. Characterization was performed using 1H and 13C NMR, IR spectroscopy, mass spectrometry, electrical conductivity measurements and X-Ray diffraction analysis. X-Ray diffraction analysis of C1 showed typical expected "piano-stool" geometry with ruthenium coordinated to ligand via nitrogen and sulfur atoms of benzoylthiourea derivatives. Interesting, in herein described complex, upon coordination the four-membered ring was formed, instead of six-membered chelate common for this type of ligands. Cytotoxic activity was determined in human cervix adenocarcinoma (HeLa) cell line and IC50 values ranged from 29.68 to 52.36 μM and the complexes were more active than related ligands (except in case of C2 where it is found that IC50 value is close to IC50 value of related ligand). Complex [Ru(η6-p-cymene)(L1)Cl2] (C1) expressed the highest cytotoxic activity with IC50 value of 29.7 μM. Complexes and ligands were tested against nine Gram-positive and Gram-negative bacteria and one yeast- Candida albicans. Clinical Candida spp. strains from microbiological laboratories were included in testing processes as well. Minimum inhibitory concentrations values ranged from 62.5 μg/ml for complexes against Candida albicans to over 1000 μg/ml for several bacterial species.
Collapse
Affiliation(s)
- Dragiša Obradović
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, Serbia
| | - Stefan Nikolić
- Innovative Centre Faculty of Chemistry Belgrade, University of Belgrade, Studentski trg 12-16, Serbia
| | - Ivana Milenković
- Department of Microbiology and Immunology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Serbia
| | - Marina Milenković
- Department of Microbiology and Immunology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Serbia
| | - Predrag Jovanović
- Department of Organic Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Serbia
| | - Vladimir Savić
- Department of Organic Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Serbia
| | - Alexander Roller
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Währinger Straße 42, Austria
| | | | - Tatjana Stanojković
- Institute of Oncology and Radiology of Serbia, Pasterova, 14, Belgrade, Serbia
| | | |
Collapse
|
10
|
Lapasam A, Kollipara MR. A survey of crystal structures and biological activities of platinum group metal complexes containing N-acylthiourea ligands. PHOSPHORUS SULFUR 2020. [DOI: 10.1080/10426507.2020.1764956] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Agreeda Lapasam
- Centre for Advanced Studies in Chemistry, North Eastern Hill University, Shillong, India
| | - Mohan Rao Kollipara
- Centre for Advanced Studies in Chemistry, North Eastern Hill University, Shillong, India
| |
Collapse
|
11
|
Cunha BN, Luna-Dulcey L, Plutin AM, Silveira RG, Honorato J, Cairo RR, de Oliveira TD, Cominetti MR, Castellano EE, Batista AA. Selective Coordination Mode of Acylthiourea Ligands in Half-Sandwich Ru(II) Complexes and Their Cytotoxic Evaluation. Inorg Chem 2020; 59:5072-5085. [DOI: 10.1021/acs.inorgchem.0c00319] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Beatriz N. Cunha
- Departamento de Química, Universidade Federal de São Carlos—UFSCar, Rodovia Washington Luís KM 235, CP 676, 13561-901 São Carlos, SP, Brazil
- Instituto Federal Goiano—IFGoiano, Campus Ceres, Rodovia GO-154 KM 03, CP 51, 76300-000 Ceres, GO, Brazil
| | - Liany Luna-Dulcey
- Departamento de Gerontologia, Universidade Federal de São Carlos—UFSCar, Rodovia Washington Luís KM 235, CP 676, 13561-901 São Carlos, SP, Brazil
| | - Ana M. Plutin
- Laboratório de Síntesis Orgánica, Facultad de Química, Universidad dela Habana—UH, Habana 10400, Cuba
| | - Rafael G. Silveira
- Departamento de Química, Universidade Federal de São Carlos—UFSCar, Rodovia Washington Luís KM 235, CP 676, 13561-901 São Carlos, SP, Brazil
- Instituto Federal Goiano—IFGoiano, Campus Ceres, Rodovia GO-154 KM 03, CP 51, 76300-000 Ceres, GO, Brazil
| | - João Honorato
- Departamento de Química, Universidade Federal de São Carlos—UFSCar, Rodovia Washington Luís KM 235, CP 676, 13561-901 São Carlos, SP, Brazil
| | - Raúl R. Cairo
- Laboratório de Síntesis Orgánica, Facultad de Química, Universidad dela Habana—UH, Habana 10400, Cuba
| | - Tamires D. de Oliveira
- Departamento de Química, Universidade Federal de São Carlos—UFSCar, Rodovia Washington Luís KM 235, CP 676, 13561-901 São Carlos, SP, Brazil
| | - Marcia R. Cominetti
- Departamento de Gerontologia, Universidade Federal de São Carlos—UFSCar, Rodovia Washington Luís KM 235, CP 676, 13561-901 São Carlos, SP, Brazil
| | - Eduardo E. Castellano
- Departamento de Física e Informática, Instituto de Física de São Carlos, Universidade de São Paulo—USP, CP 369, 13560-970 São Carlos, SP, Brazil
| | - Alzir A. Batista
- Departamento de Química, Universidade Federal de São Carlos—UFSCar, Rodovia Washington Luís KM 235, CP 676, 13561-901 São Carlos, SP, Brazil
| |
Collapse
|
12
|
cis-bis(N-benzoyl-N′,N′-dibenzylthioureido)platinum(II): Synthesis, molecular structure and its interaction with human and bovine serum albumin. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
|
13
|
Channar PA, Saeed A, Erben MF, Larik FA, Riaz S, Flörke U, Arshad M. Synthesis, conformational studies and NBO analysis of (4-chloro-3,5-dimethyl-1H-pyrazol- 1-yl)(p-tolyl)methanone. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.085] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
14
|
Synthesis, characterization, thermal and DFT studies of S-methyl-β-N-(3-(2-nitrophenyl)allylidene)dithiocarbazate as anti-bacterial agent. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.06.061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
15
|
Hydrolysis reaction promotes changes in coordination mode of Ru(II)/acylthiourea organometallic complexes with cytotoxicity against human lung tumor cell lines. J Inorg Biochem 2018; 186:147-156. [DOI: 10.1016/j.jinorgbio.2018.06.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/16/2018] [Accepted: 06/11/2018] [Indexed: 01/16/2023]
|
16
|
Bhat RA, Kumar D, Srivastava A, Mir BA, Malla MA, Bhat MA, Mir MA. Experimental, DFT Studies and Biological Evaluation of S-
methyl- β
- N
-(3-(2-nitrophenyl)allylidene)dithiocarbazate. ChemistrySelect 2018. [DOI: 10.1002/slct.201801698] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rayees A. Bhat
- Centre of Research for Chemical Sciences; Govt Model Science College; Jiwaji University; Gwalior 474009 India
| | - D. Kumar
- Centre of Research for Chemical Sciences; Govt Model Science College; Jiwaji University; Gwalior 474009 India
| | - Anurag Srivastava
- Advanced Material Research Group; ABV-Indian Institute of Information Technology and Management; Gwalior 474015 India
| | - Bilal A. Mir
- Department of chemistry, IIT Guwahati, Assam; 781039 India
| | - Manzoor A. Malla
- School of Studies in Chemistry; Jiwaji University; Gwalior 474011 India
| | - Muzzaffar A. Bhat
- School of Studies in Chemistry; Jiwaji University; Gwalior 474011 India
| | - Muzzaffar A. Mir
- School of Studies in Chemistry; Jiwaji University; Gwalior 474011 India
| |
Collapse
|
17
|
Karthick T, Tandon P, Srivastava K, Singh S. Evaluation of non-covalent interactions of chlorambucil (monomer and dimer) and its interaction with biological targets: Vibrational frequency shift, electron density topological and automated docking analysis. ARAB J CHEM 2018. [DOI: 10.1016/j.arabjc.2017.10.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
|
18
|
Saeed A, Larik FA, Jabeen F, Mehfooz H, Ghumro SA, El-Seedi HR, Ali M, Channar PA, Ashraf H. Synthesis, Antibacterial and Antileishmanial Activity, Cytotoxicity, and Molecular Docking of New Heteroleptic Copper(I) Complexes with Thiourea Ligands and Triphenylphosphine. RUSS J GEN CHEM+ 2018. [DOI: 10.1134/s1070363218030246] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
19
|
Bhat RA, Kumar D, Malla MA, Bhat SU, Khan MS, Manzoor O, Srivastava A, Naikoo RA, Mohsin M, Mir MA. Synthesis, characterization, computational studies and biological evaluation of S-benzyl-β-N-[3-(4-hydroxy-3-methoxy-phenylallylidene)]dithiocarbazate. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.11.051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
20
|
Jambi SM. Crystal structure of bis(2-((allylcarbamothioyl)imino)-4-methylthiazol-3-ido-κ 2
N, S)palladium(II), C 16H 20N 6PdS 4. Z KRIST-NEW CRYST ST 2018. [DOI: 10.1515/ncrs-2017-0157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C16H20N6PdS4, monoclinic, C2/c (no. 15), a = 13.2801(8) Å, b = 18.5771(8) Å, c = 10.2577(5) Å, β = 121.906(2)°, V = 2148.29(19) Å3, Z = 4, R
gt(F) = 0.0300, WR
ref(F
2) = 0.0721, T = 293 K.
Collapse
Affiliation(s)
- Suhair M.S. Jambi
- Chemistry Department, Faculty of Science-Al Faisaliah Campus, King Abdul-Aziz University , Jeddah , Kingdom of Saudi Arabia
| |
Collapse
|
21
|
Aldehyde-hydrate equilibrium in nucleobase 2-oxoethyl derivatives: An NMR, ESI-MS and theoretical study. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.05.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
22
|
Mushtaque M, Avecilla F, Khan MS, Hafeez ZB, Rezvi MMA, Srivastava A. Synthesis, characterization, cytotoxicity, cell cycle analysis of 3-(4-methoxyphenyl)-1-(pyridin-2-ylmethyl)thiourea and quantum chemical analyses. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
23
|
Qiao L, Zhang Y, Hu W, Guo J, Cao W, Ding Z, Guo Z, Fan A, Song J, Huang J. Synthesis, structural characterization and quantum chemical calculations on 1-(isomeric methylbenzoyl)-3-(4-trifluoromethylphenyl)thioureas. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.113] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
24
|
Khairul WM, Daud AI, Mohd Hanifaah NA, Arshad S, Razak IA, Zuki HM, Erben MF. Structural study of a novel acetylide-thiourea derivative and its evaluation as a detector of benzene. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.065] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
25
|
Aswathy V, Mary YS, Jojo P, Panicker CY, Bielenica A, Armaković S, Armaković SJ, Brzózka P, Krukowski S, Van Alsenoy C. Investigation of spectroscopic, reactive, transport and docking properties of 1-(3,4-dichlorophenyl)-3-[3-(trifluoromethyl)phenyl]thiourea (ANF-6): Combined experimental and computational study. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.01.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
26
|
Mushtaque M, Jahan M, Ali M, Khan MS, Khan MS, Preeti Sahay, Kesarwani A. Synthesis, characterization, molecular docking, DNA binding, cytotoxicity and DFT studies of 1-(4-methoxyphenyl)-3-(pyridine-3-ylmethyl)thiourea. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.05.087] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
27
|
Estévez-Hernández O, Salomón FF, Duque J, Rodríguez-Hernández J, Gil DM. Synthesis, structural and spectroscopic studies of 1-(2-FUROYL)-3-phenylthiourea: a theoretical and experimental approach. J Sulphur Chem 2016. [DOI: 10.1080/17415993.2016.1209755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Osvaldo Estévez-Hernández
- Instituto de Ciencia y Tecnología de Materiales (IMRE), Universidad de La Habana, Havana, Cuba
- Centro de Investigación en Ciencia Aplicada y Tecnología de Avanzada, México DF, México
| | - Fernando F. Salomón
- INQUINOA (CONICET-UNT). Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Miguel de Tucumán, Argentina
| | - Julio Duque
- Instituto de Ciencia y Tecnología de Materiales (IMRE), Universidad de La Habana, Havana, Cuba
- Centro de Investigación en Ciencia Aplicada y Tecnología de Avanzada, México DF, México
| | - Joelis Rodríguez-Hernández
- Departamento de Materiales Avanzados, Centro de Investigación en Química Aplicada CIQA, Blvd. Enrique Reyna Hermosillo No.140, C.P. 25294, Saltillo, Coahuila, México
| | - Diego M. Gil
- INQUINOA (CONICET-UNT). Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Miguel de Tucumán, Argentina
| |
Collapse
|
28
|
Laurella SL, Erben MF. Comment on "Structural and vibrational studies on 1-(5-Methyl- [1,3,4] thiadiazol-2-yl)-pyrolidin-2-ol" [Spectrochimica Acta Part A, 152 (2016) 252-261]. The importance of intramolecular OH⋯N hydrogen bonding in the conformational properties of thiadiazol-pyrrolidin-2-ol bearing species. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 164:40-42. [PMID: 27070529 DOI: 10.1016/j.saa.2016.03.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 03/16/2016] [Accepted: 03/18/2016] [Indexed: 06/05/2023]
Abstract
The title paper [1] reports a study on the spectroscopic and physicochemical properties of 1-(5-methyl- [1,3,4]thiadiazol-2-yl)-pyrrolidin-2-ol (MTPN) based on experimental and theoretical data. The latter ones are based on the computed molecular structure for a rather unusual conformer. Here, after a careful analysis of the conformational space of MTPN, the most stable conformation was determined for the molecule isolated in a vacuum, which results to be 21.9kJ/mol more stable than the conformer reported previously. Our study also includes the closely related species 1-(5-trifluoromethyl- [1,3,4]thiadiazol-2-yl)-pyrrolidin-2-ol (FMTPN). An intramolecular OH⋯N hydrogen bond determines the conformational behavior of the [1,3,4]thiadiazol-2-yl)-pyrrolidin-2-ol group as demonstrated by Natural Bond Orbital population analysis.
Collapse
Affiliation(s)
- Sergio L Laurella
- CEQUINOR (UNLP, CONICET-CCT La Plata), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 e/60 y 64 N° 1465, C.C. 962, 1900 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, Bv. 120 e/60 y 64 N° 1465, C.C. 962, 1900 La Plata, Buenos Aires, Argentina.
| |
Collapse
|
29
|
Saeed A, Ashraf S, Flörke U, Delgado Espinoza ZY, Erben MF, Pérez H. Supramolecular self-assembly of a coumarine-based acylthiourea synthon directed by π-stacking interactions: Crystal structure and Hirshfeld surface analysis. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.01.074] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
30
|
Saeed A, Ifzan Arshad M, Bolte M, Fantoni AC, Delgado Espinoza ZY, Erben MF. On the roles of close shell interactions in the structure of acyl-substituted hydrazones: An experimental and theoretical approach. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 157:138-145. [PMID: 26761413 DOI: 10.1016/j.saa.2015.12.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 12/02/2015] [Accepted: 12/20/2015] [Indexed: 05/27/2023]
Abstract
The 2-(phenyl-hydrazono)-succinic acid dimethyl ester compound was synthesized by reacting phenylhydrazine with dimethylacetylene dicarboxylate at room temperature and characterized by elemental analysis, infrared, Raman, (1)H and (13)C NMR spectroscopies and mass spectrometry. Its solid state structure was determined by X-ray diffraction methods. The X-ray structure determination corroborates that the molecule is present in the crystal as the hydrazone tautomer, probably favored by a strong intramolecular N-H···O=C hydrogen bond occurring between the carbonyl (-C=O) and the hydrazone -C=N-NH- groups. A substantial fragment of the molecular skeleton is planar due to an extended π-bonding delocalization. The topological analysis of the electron densities (Atom in Molecule, AIM) allows characterization of intramolecular N-H···O interaction, that can be classified as a resonant assisted hydrogen bond (RAHB). Moreover, the Natural Bond Orbital population analysis confirms that a strong hyperconjugative lpO1→σ*(N2-H) remote interaction between the C2=O1 and N2-H groups takes place. Periodic system electron density and topological analysis have been applied to characterize the intermolecular interactions in the crystal. Weak intermolecular interactions determine the crystal packing, and the prevalence of non-directional dispersive contributions are inferred on topological grounds. The IR spectrum of the crystalline compound was investigated by means of density functional theory calculations carried out with periodic boundary conditions on the crystal, showing excellent agreement between theory and the experiments. The vibrational assignment is complemented with the analysis of the Raman spectrum.
Collapse
Affiliation(s)
- Aamer Saeed
- Department of Chemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan.
| | - M Ifzan Arshad
- 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 (UNLP-CONICET), Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 49 y 115, La Plata, Buenos Aires, Argentina
| | - Zuly Y Delgado Espinoza
- 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
| | - 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.
| |
Collapse
|
31
|
Saeed A, Ashraf S, White JM, Soria DB, Franca CA, Erben MF. Synthesis, X-ray crystal structure, thermal behavior and spectroscopic analysis of 1-(1-naphthoyl)-3-(halo-phenyl)-thioureas complemented with quantum chemical calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 150:409-418. [PMID: 26057095 DOI: 10.1016/j.saa.2015.05.068] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 05/12/2015] [Accepted: 05/23/2015] [Indexed: 06/04/2023]
Abstract
Two novel 1-(1-naphthoyl)-3-(halo-phenyl) substituted thioureas, namely 1-(1-naphthoyl)-3-(2,4-di-fluoro-phenyl)-thiourea (1) and 1-(1-naphthoyl)-3-(3-chloro-4-fluoro-phenyl)-thiourea (2), were synthesized and fully characterized. The X-ray crystal and molecular structures have been determined resulting in a planar acylthiourea group, with the C=O and C=S adopting a pseudo-antiperiplanar conformation. An intramolecular N-H⋯O=C hydrogen bond occurs between the thioamide and carbonyl groups. The crystal packing of both compounds is characterized by extended intermolecular N-H⋯S=C and N-H⋯O=C hydrogen-bonding interactions involving the acylthiourea moiety. Compound 2 is further stabilized by π-stacking between adjacent naphthalene and phenyl rings. The thermal behavior, as well as the vibrational properties, studied by infrared and Raman spectroscopy data complemented by quantum chemical calculations at the B3PW91/6-311++G(d,p) support the formation of these intra- and intermolecular hydrogen bonds. Furthermore, the UV-Vis spectrum is interpreted in terms of TD-DFT quantum chemical calculations with the shapes of the simulated absorption spectra in good accordance with the experimental data.
Collapse
Affiliation(s)
- Aamer Saeed
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Saba Ashraf
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Jonathan M White
- Bio-21 Institute, School of Chemistry, University of Melbourne, Parkville, Victoria 3052, Australia
| | - 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
| | - Carlos A Franca
- 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
| | - 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.
| |
Collapse
|
32
|
Abosadiya HM, Anouar EH, Hasbullah SA, Yamin BM. Synthesis, X-ray, NMR, FT-IR, UV/vis, DFT and TD-DFT studies of N-(4-chlorobutanoyl)-N'-(2-, 3- and 4-methylphenyl)thiourea derivatives. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 144:115-124. [PMID: 25748989 DOI: 10.1016/j.saa.2015.01.092] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 01/18/2015] [Accepted: 01/29/2015] [Indexed: 06/04/2023]
Abstract
A new isomers of thiourea derivatives, namely N-(4-chlorobutanoyl)-N'-(2-methylphenyl)-thiourea (1a), N-(4-chlorobutanoyl)-N'-(3-methylphenyl)thiourea (1b) and N-(4-chlorobutanoyl)-N'-(4-methylphenyl)thiourea (1c) have been synthesized by refluxing mixture of equimolar amounts of 4-chlorobutanoylisothiocyanate with 2, 3 or 4-toluidine, respectively. The three isomers were characterized by spectroscopic (UV/vis, FT-IR and NMR) and X-ray crystallography techniques. To investigate the isomerization effect on spectroscopic data, DFT and TD-DFT calculations have been carried out using five hybrid functionals (B3LYP, B3P86, CAM-B3LYP, M06-2X and PBE0) to predict UV/vis absorption bands (n→π∗ and π→π∗), (1)H and (13)C NMR chemical shifts, FT-IR vibration modes and X-ray parameters (bonds, bond angles and torsion angles) for 1a, 1b and 1c isomers. The results showed that the isomerization effect is significant on λ(MAX) absorption bands, while for IR and NMR the effect is negligible. In accordance with previous studies, B3LYP, B3P86 and PBE0 gave the most reliable to predict the excitation energies of thiourea derivatives.
Collapse
Affiliation(s)
- Hamza M Abosadiya
- School of Chemical Sciences and Food Technology, Universiti Kebangsaan Malaysia, 43650 Bangi, Selangor, Malaysia
| | - El Hassane Anouar
- Atta-ur-Rahman Institute for Natural Product Discovery, Universiti Teknologi MARA Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor D.E., Malaysia; Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Siti Aishah Hasbullah
- School of Chemical Sciences and Food Technology, Universiti Kebangsaan Malaysia, 43650 Bangi, Selangor, Malaysia
| | - Bohari M Yamin
- School of Chemical Sciences and Food Technology, Universiti Kebangsaan Malaysia, 43650 Bangi, Selangor, Malaysia.
| |
Collapse
|
33
|
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.
Collapse
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.
| |
Collapse
|
34
|
Saeed A, Bolte M, Erben MF, Pérez H. Intermolecular interactions in crystalline 1-(adamantane-1-carbonyl)-3-substituted thioureas with Hirshfeld surface analysis. CrystEngComm 2015. [DOI: 10.1039/c5ce01373a] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The 1-acyl thiourea synthon is characterized through a complete Hirshfeld surface analysis for a series of six closely related 1-(adamantane-1-carbonyl) thioureas.
Collapse
Affiliation(s)
- Aamer Saeed
- Department of Chemistry
- Quaid-I-Azam University
- Islamabad 45320, Pakistan
| | - Michael Bolte
- Institut für Anorganische Chemie
- J. W. Goethe Universität
- D-60438 Frankfurt/Main, Germany
| | - Mauricio F. Erben
- CEQUINOR (UNLP, CONICET-CCT La Plata)
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- La Plata 1900, República Argentina
| | - Hiram Pérez
- Departamento de Química Inorgánica
- Facultad de Química
- Universidad de la Habana
- Habana 10400, Cuba
| |
Collapse
|
35
|
Hydrogen-bonded complexes between dimethyl sulfoxide and monoprotic acids: molecular properties and IR spectroscopy. J Mol Model 2014; 20:2477. [PMID: 25342154 DOI: 10.1007/s00894-014-2477-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Accepted: 09/21/2014] [Indexed: 10/24/2022]
Abstract
MP2/6-31++G(d,p) and DFT B3LYP/6-31++G(d,p) calculations were performed of the structure, binding energies, and vibrational modes of complexes between dimethyl sulfoxide (DMSO) as a proton acceptor and monoprotic linear acids HX (X = F, Cl, CN) as well as monoprotic carboxylic acids HOOCR (R = -H, -CH3, -C6H5) in 1:1 and 1:2 stoichiometric ratios. The results show that two different structures are possible in the 1:2 ratio: in the first, the DMSO molecule interacts with both acid molecules (leading to a "Y" structure); in the second, the DMSO interacts with only one monoprotic acid. The second structure shows a lower stability per hydrogen bond. The spontaneities of the reactions to form the 1:1 and 1:2 complexes are greatly influenced by the X group of the linear acid. With the exception of HCN, all the reactions are spontaneous. In the 1:2 complexes with Y structure, we observed that the hydrogen atoms of the linear acid are coupled in symmetric and asymmetric modes, while this type of coupling is absent from the other 1:2 complexes.
Collapse
|
36
|
Martínez-Cifuentes M, Weiss-López BE, Santos LS, Araya-Maturana R. Intramolecular hydrogen bond in biologically active o-carbonyl hydroquinones. Molecules 2014; 19:9354-68. [PMID: 24995921 PMCID: PMC6270916 DOI: 10.3390/molecules19079354] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 06/18/2014] [Accepted: 06/27/2014] [Indexed: 11/16/2022] Open
Abstract
Intramolecular hydrogen bonds (IHBs) play a central role in the molecular structure, chemical reactivity and interactions of biologically active molecules. Here, we study the IHBs of seven related o-carbonyl hydroquinones and one structurally-related aromatic lactone, some of which have shown anticancer and antioxidant activity. Experimental NMR data were correlated with theoretical calculations at the DFT and ab initio levels. Natural bond orbital (NBO) and molecular electrostatic potential (MEP) calculations were used to study the electronic characteristics of these IHB. As expected, our results show that NBO calculations are better than MEP to describe the strength of the IHBs. NBO energies (∆Eij(2)) show that the main contributions to energy stabilization correspond to LP-->σ* interactions for IHBs, O1…O2-H2 and the delocalization LP-->π* for O2-C2=Cα(β). For the O1…O2-H2 interaction, the values of ∆Eij(2) can be attributed to the difference in the overlap ability between orbitals i and j (Fij), instead of the energy difference between them. The large energy for the LP O2-->π* C2=Cα(β) interaction in the compounds 9-Hydroxy-5-oxo-4,8, 8-trimethyl-l,9(8H)-anthracenecarbolactone (VIII) and 9,10-dihydroxy-4,4-dimethylanthracen-1(4H)-one (VII) (55.49 and 60.70 kcal/mol, respectively) when compared with the remaining molecules (all less than 50 kcal/mol), suggests that the IHBs in VIII and VII are strongly resonance assisted.
Collapse
Affiliation(s)
- Maximiliano Martínez-Cifuentes
- Laboratorio de Síntesis Asimétrica, Instituto de Química de los Recursos Naturales, Universidad de Talca, Talca, Casilla 747, Chile.
| | - Boris E Weiss-López
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Casilla 653, Chile.
| | - Leonardo S Santos
- Laboratorio de Síntesis Asimétrica, Instituto de Química de los Recursos Naturales, Universidad de Talca, Talca, Casilla 747, Chile.
| | - Ramiro Araya-Maturana
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas Y Farmacéuticas, Universidad de Chile, Santiago, Casilla 233, Chile.
| |
Collapse
|