1
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Aguilar-Llanos E, Carrera-Pacheco SE, González-Pastor R, Zúñiga-Miranda J, Rodríguez-Pólit C, Mayorga-Ramos A, Carrillo-Naranjo O, Guamán LP, Romero-Benavides JC, Cevallos-Morillo C, Echeverría GA, Piro OE, Alcívar-León CD, Heredia-Moya J. Crystal Structure, Hirshfeld Surface Analysis, and Biological Activities of Schiff-Base Derivatives of 4-Aminoantipyrine. ACS OMEGA 2023; 8:42632-42646. [PMID: 38024734 PMCID: PMC10652364 DOI: 10.1021/acsomega.3c05372] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 09/26/2023] [Indexed: 12/01/2023]
Abstract
Eight Schiff bases, synthesized by the reaction of 4-aminoantipyrine with different cinnamaldehydes, were studied in the solid state by using vibrational spectroscopy (IR) and X-ray diffraction techniques. The analysis was extended to the solution phase through ultraviolet-vis, fluorescence spectroscopy, and cyclic voltammetry. Finally, the crystal structures of four compounds (3b, 3d, 3g, and 3h) were determined and studied. In addition to the experimental study, theoretical calculations using the semiempirical method PM6/ZDO were performed to understand better the compound's molecular properties, UV-vis, and infrared spectra. The primary difference is the angular conformation of the terminal phenyl rings around the corresponding linking C-N and C-C σ-bonds. Furthermore, as a result of extended bonding, the > C=N- azomethine group-containing Cpyr-N=(CH)-(CR)=(CH)-Cbz chain (with R=H for 3b, 3d, and 3h, and R=CH3 for 3g) is planar, nearly coplanar, with the mean plane of the pyrazole ring. Hirshfeld surface (HS) analysis was used to investigate the crystal packing and intermolecular interactions, which revealed that intermolecular C-H···O and C-H···N hydrogen bonds, π···π stacking, and C-H···π and C=O···π interactions stabilize the compounds. The energy contributions to the lattice energies of potential hydrogen bonds were primarily dispersive and repulsive. All derivatives were tested in vitro on LPS-stimulated mouse macrophages to assess their ability to suppress the LPS-induced inflammatory responses. Only a slight reduction in the level of NO production was found in activated macrophages treated with 3h. Additionally, the derivatives were tested for antimicrobial activity against several clinical bacteria and fungi strains, including three biofilm-forming microorganisms. Nevertheless, only Schiff base 3f showed interesting antibacterial activities with minimum inhibitory concentration (MIC) values as low as 15.6 μM against Enterobacter gergoviae. On the other hand, Schiff base 3f and, to a lesser extent, 3b and 3h showed antifungal activity against clinical isolates of Candida. The lowest MIC value was for 3f against Candida albicans (15.6 μM). It is interesting to note that the same Schiff bases exhibit the highest activity in both biological evaluations.
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Affiliation(s)
- Esteban Aguilar-Llanos
- Facultad
de Ciencias Químicas, Universidad
Central del Ecuador, Francisco Viteri s/n y Gilberto Gato Sobral, Quito 170521, Ecuador
| | - Saskya E. Carrera-Pacheco
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Rebeca González-Pastor
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Johana Zúñiga-Miranda
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Cristina Rodríguez-Pólit
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Arianna Mayorga-Ramos
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Oscar Carrillo-Naranjo
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Linda P. Guamán
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
| | - Juan Carlos Romero-Benavides
- Departamento
de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, Loja 1101608, Ecuador
| | - Carlos Cevallos-Morillo
- Facultad
de Ciencias Químicas, Universidad
Central del Ecuador, Francisco Viteri s/n y Gilberto Gato Sobral, Quito 170521, Ecuador
| | - Gustavo A. Echeverría
- Departamento
de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and Institute IFLP (CONICET, CCT-La
Plata), C. C. 67, La Plata 1900, Argentina
| | - Oscar E. Piro
- Departamento
de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and Institute IFLP (CONICET, CCT-La
Plata), C. C. 67, La Plata 1900, Argentina
| | - Christian D. Alcívar-León
- Facultad
de Ciencias Químicas, Universidad
Central del Ecuador, Francisco Viteri s/n y Gilberto Gato Sobral, Quito 170521, Ecuador
| | - Jorge Heredia-Moya
- Centro
de Investigación Biomédica (CENBIO), Facultad de Ciencias
de la Salud Eugenio Espejo, Universidad
UTE, Quito 170527, Ecuador
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2
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Al-Hawarin JI, Abu-Yamin AA, Abu-Saleh AAAA, Saraireh IAM, Almatarneh MH, Hasan M, Atrooz OM, Al-Douri Y. Synthesis, Characterization, and DFT Calculations of a New Sulfamethoxazole Schiff Base and Its Metal Complexes. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5160. [PMID: 37512433 PMCID: PMC10385116 DOI: 10.3390/ma16145160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023]
Abstract
A new Schiff base, 4-((1E,2E)-3-(furan-2-yl)allylidene)amino)-N-(5-methylisoxazol-3-yl) benzene-sulfonamide (L), was synthesized by thermal condensation of 3-(2-furyl)acrolein and sulfamethoxazole (SMX), and the furan Schiff base (L) was converted to a phenol Schiff base (L') according to the Diels-Alder [4 + 2] cycloaddition reaction and studied experimentally. The structural and spectroscopic properties of the Schiff base were also corroborated by utilizing density functional theory (DFT) calculations. Furthermore, a series of lanthanide and transition metal complexes of the Schiff base were synthesized from the nitrate salts of Gd, Sm, Nd, and Zn (L1, L2, L3, and L4), respectively. Various spectroscopic studies confirmed the chemical structures of the Schiff-base ligand and its complexes. Based on the spectral studies, a nine-coordinated geometry was assigned to the lanthanide complexes and a six-coordinated geometry to the zinc complex. The elemental analysis data confirmed the suggested structure of the metal complexes, and the TGA studies confirmed the presence of one coordinated water molecule in the lanthanide complexes and one crystalline water molecule in the zinc complex; in addition, the conductivity showed the neutral nature of the complexes. Therefore, it is suggested that the ligand acts as a bidentate through coordinates to each metal atom by the isoxazole nitrogen and oxygen atoms of the sulfur dioxide moiety of the SMX based on FTIR studies. The ligand and its complexes were tested for their anti-inflammatory, anti-hemolytic, and antioxidant activities by various colorimetric methods. These complexes were found to exhibit potential effects of the selected biological activities.
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Affiliation(s)
- Jibril I Al-Hawarin
- Department of Chemistry, Al-Hussein Bin Talal University, Ma'an 71111, Jordan
| | | | | | | | - Mansour H Almatarneh
- Department of Chemistry, Memorial University, St. John's, NL A1B 3X7, Canada
- Department of Chemistry, University of Jordan, Amman 11942, Jordan
| | - Mahmood Hasan
- Hepi Company (Home of Experience) for Paints and Inks, Cairo 61710, Egypt
| | - Omar M Atrooz
- Department of Biological Sciences, Mutah University, Mutah 617102, Jordan
| | - Y Al-Douri
- Nanotechnology and Catalysis Research Center (NANOCAT), University of Malaya, Kuala Lumpur 50603, Malaysia
- Department of Mechanical Engineering, Faculty of Engineering, Piri Reis University, Eflatun Sk. No: 8, Istanbul 34940, Tuzla, Turkey
- Department of Applied Physics and Astronomy, College of Sciences, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
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Jubeen F, Jabeen I, Aftab U, Noor S, Hareem ME, Sultan M, Kazi M. Synthesis, Characterization, Theoretical and Experimental Anticancer Evaluation of Novel Cocrystals of 5-Fluorouracil and Schiff Bases against SW480 Colorectal Carcinoma. Pharmaceutics 2023; 15:1929. [PMID: 37514115 PMCID: PMC10383612 DOI: 10.3390/pharmaceutics15071929] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/28/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023] Open
Abstract
The chemotherapeutic agent known as 5-fluorouracil (5-FU) is an artificial fluoropyrimidine antimetabolite that has been widely used for its antineoplastic properties. Cocrystals of 5-fluorouracil (5-FU) with five different Schiff bases (benzylidene-urea (BU), benzylidene-aniline (BA), salicylidene-aniline (SA), salicylidene-phenylhydrazine (SPH), and para-hydroxy benzylideneaniline (HBA)) are reported in this study. The newly synthesized cocrystals were analyzed by FTIR and PXRD. In this study, we investigated the antitumor efficacy of 5-FU derivatives in SW480 colon cancer cells via MTT assay at varying dose concentrations. Molecular docking was performed to predict the binding mechanism of TS with various 5-FU complexes. FTIR revealed the presence of respective functional groups in the prepared cocrystals. The frequencies (v) of N-H (3220.24 cm-1) and carbonyl groups (1662.38 cm-1) in the spectrum of 5-FU shifted considerably in all derivative cocrystal new interactions. There was a noticeable transformation in the PXRD peak of 5-FU at 2θ = 28.37° in all derivatives. The novelty of the present study lies in the fact that 5-FU-BA showed an anticancer potential IC50 (6.4731) far higher than that of 5-FU (12.116), almost comparable to that of the reference drug doxorubicin (3.3159), against SW480 cancel cell lines, followed by 5-Fu-HBA (10.2174). The inhibition rates of 5-FU-BA and 5-FU-HBA were highest among the derivatives (99.85% and 99.37%, respectively) in comparison with doxorubicin (97.103%). The results revealed that the synthesized 5-FU cocrystals have promising antitumor efficacy compared with previously reported 5-FU and 5-FU. The activities of the cocrystals were rationalized by a molecular modeling approach to envisage binding modes with the target cancer protein.
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Affiliation(s)
- Farhat Jubeen
- Department of Chemistry, Government College Women University, Arfa Kareem Road, Faisalabad 38000, Pakistan
| | - Ishrat Jabeen
- School of Interdisciplinary Engineering and Sciences (SINES), National University of Sciences and Technology (NUST), Sector H12, Islamabad 44000, Pakistan
| | - Usman Aftab
- Department of Pharmacology, University of Health Sciences, Lahore 54600, Pakistan
| | - Sadia Noor
- School of Interdisciplinary Engineering and Sciences (SINES), National University of Sciences and Technology (NUST), Sector H12, Islamabad 44000, Pakistan
- Department of Inorganic Chemistry, University of Hohenheim, 70599 Stuttgart, Germany
| | - Mah E Hareem
- School of Interdisciplinary Engineering and Sciences (SINES), National University of Sciences and Technology (NUST), Sector H12, Islamabad 44000, Pakistan
| | - Misbah Sultan
- Institute of Chemistry, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan
| | - Mohsin Kazi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
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Zhang F, Zhou H, Yuan J, Li Q, Diao Y, Sun X, Zhang L, Lin Y, Du L. ®Optimization of the Hydrolysis Reaction Process in the Synthesis of 4‐Aminoantipyrine by Response Surface Methodology and its Kinetics. ChemistrySelect 2023. [DOI: 10.1002/slct.202203492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Affiliation(s)
- Fuyue Zhang
- College of Chemical Engineering Qingdao University of Science and Technology, Qingdao Shandong, SD 532 China
| | - Haoyu Zhou
- College of Chemical Engineering Qingdao University of Science and Technology, Qingdao Shandong, SD 532 China
| | - Jinqiu Yuan
- College of Chemical Engineering Qingdao University of Science and Technology, Qingdao Shandong, SD 532 China
| | - Qinghui Li
- College of Chemical Engineering Qingdao University of Science and Technology, Qingdao Shandong, SD 532 China
| | - Yanwei Diao
- College of Environment and Safety Engineering Qingdao University of Science and Technology, Qingdao Shandong, SD 532 China
| | - Xiaoyan Sun
- College of Chemical Engineering Qingdao University of Science and Technology, Qingdao Shandong, SD 532 China
| | - Liangjie Zhang
- College of Chemical Engineering Qingdao University of Science and Technology, Qingdao Shandong, SD 532 China
| | - Yuhang Lin
- College of Environment and Safety Engineering Qingdao University of Science and Technology, Qingdao Shandong, SD 532 China
| | - Lei Du
- College of Chemical Engineering Qingdao University of Science and Technology, Qingdao Shandong, SD 532 China
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Bukhari SM, Sarwar R, Zaidi A, Ali M, Khan FA, Farooq U, Uddin J, Ibrar A, Khan A, Al-Harrasi A. Some of the organic ligand transition metal complexes can serve as potent α-glucosidase inhibitors: in-vitro, kinetics and in-silico studies. INORG NANO-MET CHEM 2023. [DOI: 10.1080/24701556.2023.2183219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Affiliation(s)
- Syed Majid Bukhari
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Rizwana Sarwar
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Asma Zaidi
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Majid Ali
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
- Department of Chemistry, Government Postgraduate College No. 1, Abbottabad, Pakistan
| | - Farhan A. Khan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Umar Farooq
- Department of Chemistry, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Jalal Uddin
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Aliya Ibrar
- Department of Chemistry, Faculty of Natural Sciences, The University of Haripur, Haripur, Pakistan
| | - 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
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Sykuła A, Nowak A, Garribba E, Dzeikala A, Rowińska-Żyrek M, Czerwińska J, Maniukiewicz W, Łodyga-Chruścińska E. Spectroscopic Characterization and Biological Activity of Hesperetin Schiff Bases and Their Cu(II) Complexes. Int J Mol Sci 2023; 24:ijms24010761. [PMID: 36614204 PMCID: PMC9821237 DOI: 10.3390/ijms24010761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/19/2022] [Accepted: 12/29/2022] [Indexed: 01/03/2023] Open
Abstract
The three Schiff base ligands, derivatives of hesperetin, HHSB (N-[2,3-dihydro-5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chromen-4-ylidene]isonicotinohydrazide), HIN (N-[2,3-dihydro-5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chromen-4-ylidene]benzhydrazide) and HTSC (N-[2,3-dihydro-5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chromen-4-ylidene]thiosemicarbazide) and their copper complexes, CuHHSB, CuHIN, and CuHTSC were designed, synthesized and analyzed in terms of their spectral characterization and the genotoxic activity. Their structures were established using several methods: elemental analysis, FT-IR, UV-Vis, EPR, and ESI-MS. Spectral data showed that in the acetate complexes the tested Schiff bases act as neutral tridentate ligand coordinating to the copper ion through two oxygen (or oxygen and sulphur) donor atoms and a nitrogen donor atom. EPR measurements indicate that in solution the complexes keep their structures with the ligands remaining bound to copper(II) in a tridentate fashion with (O-, N, Oket) or (O-, N, S) donor set. The genotoxic activity of the compounds was tested against model tumour (HeLa and Caco-2) and normal (LLC-PK1) cell lines. In HeLa cells the genotoxicity for all tested compounds was noticed, for HHSB and CuHHSB was the highest, for HTSC and CuHTSC-the lowest. Generally, Cu complexes displayed lower genotoxicity to HeLa cells than ligands. In the case of Caco-2 cell line HHSB and HTSC induced the strongest breaks to DNA. On the other side, CuHHSB and CuHTSC induced the highest DNA damage against LLC-PK1.
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Affiliation(s)
- Anna Sykuła
- Faculty of Biotechnology and Food Sciences, Institute of Natural Products and Cosmetics, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
| | - Adriana Nowak
- Department of Environmental Biotechnology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Wólczańska 171/173, 90-530 Lodz, Poland
| | - Eugenio Garribba
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Viale San Pietro, I-07100 Sassari, Italy
| | - Aliaksandr Dzeikala
- Faculty of Biotechnology and Food Sciences, Institute of Natural Products and Cosmetics, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
| | | | - Justyna Czerwińska
- Department of Occupational Safety Engineering, Faculty of Process and Environmental Engineering, Lodz University of Technology, Wólczańska 213, 90-924 Lodz, Poland
| | - Waldemar Maniukiewicz
- Faculty of Chemistry, Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland
| | - Elżbieta Łodyga-Chruścińska
- Faculty of Biotechnology and Food Sciences, Institute of Natural Products and Cosmetics, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
- Correspondence:
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Ertürk AG, Sekeroglu V, Yildirim E, Dindaroglu G, Sekeroglu ZA. Antipyrine derived-Schiff base copper complex: Synthesis, characterization, and in vitro evaluation. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Patil PR, Javarappa R, Kumar AC, Naik N. Synthesis of Co(II), Ni(II) and Zn(II) Metal Complexes Derived from a Hydrazone Schiff Base: Electrochemical Behavior and Comprehensive Biological Studies. ChemistrySelect 2022. [DOI: 10.1002/slct.202200752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Priyanka R. Patil
- Department of Studies in Chemistry University of Mysore, Manasagangotri Mysuru 570006, Karnataka India
| | - Rangaswamy Javarappa
- Department of Chemistry, Poornaprajna College Shri Admar Mutt Education Council Mangalore University Udupi 576101, Karnataka India
| | - A. C. Kumar
- Department of Studies in Chemistry University of Mysore, Manasagangotri Mysuru 570006, Karnataka India
| | - Nagaraja Naik
- Department of Studies in Chemistry University of Mysore, Manasagangotri Mysuru 570006, Karnataka India
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Pincer Complexes Derived from Tridentate Schiff Bases for Their Use as Antimicrobial Metallopharmaceuticals. INORGANICS 2022. [DOI: 10.3390/inorganics10090134] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Within the current challenges in medicinal chemistry, the development of new and better therapeutic agents effective against infectious diseases produced by bacteria, fungi, viruses, and parasites stands out. With chemotherapy as one of the main strategies against these diseases focusing on the administration of organic and inorganic drugs, the latter is generally based on the synergistic effect produced by the formation of metal complexes with biologically active organic compounds. In this sense, Schiff bases (SBs) represent and ideal ligand scaffold since they have demonstrated a broad spectrum of antitumor, antiviral, antimicrobial, and anti-inflammatory activities, among others. In addition, SBs are synthesized in an easy manner from one-step condensation reactions, being thus suitable for facile structural modifications, having the imine group as a coordination point found in most of their metal complexes, and promoting chelation when other donor atoms are three, four, or five bonds apart. However, despite the wide variety of metal complexes found in the literature using this type of ligands, only a handful of them include on their structures tridentate SBs ligands and their biological evaluation has been explored. Hence, this review summarizes the most important antimicrobial activity results reported this far for pincer-type complexes (main group and d-block) derived from SBs tridentate ligands.
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CRYSTAL ARCHITECTURE, DFT AND HIRSHFELD SURFACE ANALYSIS OF NOVEL ‘DOUBLE OPEN-END SPANNER’ TYPE DIMER DERIVED FROM 4-AMINOANTIPYRINE. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Vorobeva V, Starichenko D, Gruzdev M, Chervonova U, Zaripov R, Korolev A. Magnetic properties of the mononuclear iron (III) complexes with biphenyl‐disubstituted Schiff base ligand: EPR and SQUID study. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Valerya Vorobeva
- Department of Chemical Physics, Zavoisky Physical‐Technical Institute, FRC Kazan Scientific Center of Russian Academy of Sciences Kazan Russian Federation
| | - Denis Starichenko
- Department of Nanospintronics, Electrical Phenomena Laboratory, M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences Ekaterinburg Russian Federation
| | - Matvey Gruzdev
- Laboratory of Structure and dynamics of molecular and ion‐molecular solutions, G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences Ivanovo Russian Federation
| | - Ulyana Chervonova
- Laboratory of Structure and dynamics of molecular and ion‐molecular solutions, G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences Ivanovo Russian Federation
| | - Ruslan Zaripov
- Department of Chemical Physics, Zavoisky Physical‐Technical Institute, FRC Kazan Scientific Center of Russian Academy of Sciences Kazan Russian Federation
| | - Aleksandr Korolev
- Department of magnetic measurements, M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences Ekaterinburg Russian Federation
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Crystal Structure of a Chiral Sec-Amine, 4-Chloro-N-(1-(pyridin-2-yl)ethyl)aniline. MOLBANK 2022. [DOI: 10.3390/m1335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this communication, we present the crystal structure of a secondary amine: 4-chloro-N-(1-(pyridin-2-yl)ethyl)aniline (Lb) obtained from a stepwise reduction of an imine, (E)-N-(4-chlorophenyl)-1-(pyridin-2-yl)ethan-1-imine (La) with sodium borohydride. The structure was characterized by FT-IR, 1H and 13C NMR, Mass Spectroscopy and X-ray diffraction.
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