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Synthesis, spectroscopic studies, DFT calculations, antimicrobial and antitumor activity of tridentate NNO Schiff base metal complexes based on 5-acetyl-4-hydroxy-2H-1,3-thiazine-2,6(3H)-dione. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.07.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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2
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Kumar K, Murugesan S. Synthesis, characterization and anti-bacterial activity of divalent transition metal complexes of hydrazine and trimesic acid. JOURNAL OF SAUDI CHEMICAL SOCIETY 2018. [DOI: 10.1016/j.jscs.2017.05.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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3
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Adly OM, Shebl M, El-Shafiy HF, Khalil SM, Taha A, Mahdi MA. Synthesis, spectroscopic characterization, antimicrobial and antitumor studies of mono-, bi- and tri-nuclear metal complexes of a new Schiff base ligand derived from o -acetoacetylphenol. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.08.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Yoshitake M, Nishihashi M, Ogata Y, Yoneda K, Yamada Y, Sakiyama H, Mishima A, Ohba M, Koikawa M. Syntheses, structures, and magnetic properties of cubane-based cobalt and nickel complexes with ONO -tridentate ligands. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.03.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Synthesis, characterization and antimicrobial study of polymeric transition metal complexes of Mn(II), Co(II), Ni(II), Cu(II) and Zn(II). Microb Pathog 2017; 110:414-425. [DOI: 10.1016/j.micpath.2017.07.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 06/14/2017] [Accepted: 07/10/2017] [Indexed: 11/18/2022]
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6
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Adly OM, Taha A, Fahmy SA. Spectroscopic, thermal, antimicrobial and molecular modeling studies of mononuclear pentafunctional Schiff base metal chelates derived from 5-acetyl-4-hydroxy-2H-1,3-thiazine-2,6(3H)-dione. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.10.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Docking of ethanamine Schiff base imines & metal (II) complexes, cytotoxicity & DNA interaction studies. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.08.041] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Abu-Dief AM, Nassr LAE. Tailoring, physicochemical characterization, antibacterial and DNA binding mode studies of Cu(II) Schiff bases amino acid bioactive agents incorporating 5-bromo-2-hydroxybenzaldehyde. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2014. [DOI: 10.1007/s13738-014-0557-9] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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9
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Anbu S, Killivalavan A, Alegria EC, Mathan G, Kandaswamy M. Effect of 1,10-phenanthroline on DNA binding, DNA cleavage, cytotoxic and lactate dehydrogenase inhibition properties of Robson type macrocyclic dicopper(II) complex. J COORD CHEM 2013. [DOI: 10.1080/00958972.2013.858136] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Sellamuthu Anbu
- Department of Inorganic Chemistry, School of Chemical Sciences, University of Madras, Guindy Maraimalai Campus, Chennai, India
| | - Asaithambi Killivalavan
- Department of Biomedical Science, School of Basic Medical Sciences, Bharathidasan University, Tiruchirapalli, India
| | - Elisabete C.B.A. Alegria
- Chemical Engineering Departmental Area, ISEL, Lisboa, Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Technical University of Lisbon, Lisboa, Portugal
| | - Ganeshan Mathan
- Department of Biomedical Science, School of Basic Medical Sciences, Bharathidasan University, Tiruchirapalli, India
| | - Muthusamy Kandaswamy
- Department of Inorganic Chemistry, School of Chemical Sciences, University of Madras, Guindy Maraimalai Campus, Chennai, India
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Adly OMI. Characterization, molecular modeling and antimicrobial activity of metal complexes of tridentate Schiff base derived from 5-acetyl-4-hydroxy-2H-1,3-thiazine-2,6(3H)-dione and 2-aminophenol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 95:483-490. [PMID: 22580142 DOI: 10.1016/j.saa.2012.04.030] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Revised: 03/18/2012] [Accepted: 04/07/2012] [Indexed: 05/31/2023]
Abstract
Metal complexes of Ni(II), Co(II), Cd(II), VO(IV) and UO(2)(VI) as well as several Cu(II) salts, including Cl(-),NO(3)(-),AcO(-),ClO(4)(-) and SO(4)(-2) with a tridentate O(2)N donor Schiff base ligand (H(2)L), synthesized by condensation of 5-acetyl-4-hydroxy-2H-1,3-thiazine-2,6(3H)-dione with 2-aminophenol, were prepared and characterized on the basis of elemental analyses, spectral, magnetic, molar conductance and thermal gravimetric analysis. Square planar, tetrahedral and octahedral geometries have been assigned to the prepared complexes. Molecular parameters of the ligand and its metal complexes have been calculated and correlated with the experimental data, and the changes of bond lengths are linearly correlated with IR data. The antimicrobial activities of the synthesized compounds were tested in vitro against the sensitive organisms Staphylococcus aureus as Gram positive bacteria, Proteus vulgaris as Gram negative bacteria and Candida albicans as fungus strain, and the results are discussed.
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Affiliation(s)
- Omima M I Adly
- Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11711, Egypt.
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Chandra S, Qanungo K, Sharma SK. New hexadentate macrocyclic ligand and their copper(II) and nickel(II) complexes: Spectral, magnetic, electrochemical, thermal, molecular modeling and antimicrobial studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 94:312-317. [PMID: 22522304 DOI: 10.1016/j.saa.2011.12.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Revised: 11/16/2011] [Accepted: 12/15/2011] [Indexed: 05/31/2023]
Abstract
Ni(II) and Cu(II) complexes were synthesized with a hexadentate macrocyclic ligand [3,4,8,9tetraoxo-2,5,7,10tetraaza-1,6dithio-(3,4,8,9) dipyridinedodecane(L)] and characterized by elemental analysis, molar conductance measurements, mass, NMR, IR, electronic, EPR spectral, thermal and molecular modeling studies. All the complexes are 1:2 electrolytes in nature and may be formulated as [M(L)]X(2) [where, M=Ni(II) and Cu(II) and X=Cl(-), NO(3)(-), ½SO(4)(2-), CH(3)COO(-)]. On the basis of IR, electronic and EPR spectral studies an octahedral geometry has been assigned for Ni(II) complexes and tetragonal geometry for Cu(II) complexes. The antimicrobial activities and LD(50) values of the ligand and its complexes, as growth inhibiting agents, have been screened in vitro against two different species of bacteria and plant pathogenic fungi.
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Affiliation(s)
- Sulekh Chandra
- Department of Chemistry, Zakir Husain College, University of Delhi, J.L. Nehru Marg, New Delhi 110002, India.
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12
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Liu H, Wang H, Niu D, Lu Z. Synthesis, Structure, and Properties of a Tetranuclear Cubane-like Nickel(II) Complex with Tridentate Schiff Base Ligand. ACTA ACUST UNITED AC 2012. [DOI: 10.1080/15533170500359927] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Huiyan Liu
- a Department of Chemistry , Xuzhou Normal University , Xuzhou , P. R. China
| | - Haiying Wang
- a Department of Chemistry , Xuzhou Normal University , Xuzhou , P. R. China
| | - Dezhong Niu
- a Department of Chemistry , Xuzhou Normal University , Xuzhou , P. R. China
| | - Zaisheng Lu
- a Department of Chemistry , Xuzhou Normal University , Xuzhou , P. R. China
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Anbu S, Ravishankaran R, Karande AA, Kandaswamy M. DNA targeting polyaza macrobicyclic dizinc(ii) complexes promoting high in vitro caspase dependent anti-proliferative activity against human carcinoma cancer cells. Dalton Trans 2012; 41:12970-83. [DOI: 10.1039/c2dt31094e] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Chandra S, Qanungo K, Sharma SK. Synthesis, molecular modeling and spectroscopic characterization of nickel(II), copper(II), complexes of new 16-membered mixed-donor macrocyclic schiff base ligand incorporating a pendant alcohol function. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:1326-1330. [PMID: 21689978 DOI: 10.1016/j.saa.2011.04.063] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2010] [Revised: 04/18/2011] [Accepted: 04/27/2011] [Indexed: 05/30/2023]
Abstract
Complexes of Cu(II) and Ni(II) of the composition [M(L)X] [where M=Ni(II), Cu(II) and X=Cl-, NO3-, CH3COO-] were synthesized with 1,5-dioxo-9,10-diaza-3,ol-tribenzo-(7,6,10,11,14,15) peptadecane, a N2O2 macrocyclic ligand. The complexes were characterized by elemental analysis, molar conductance measurements, UV-vis, IR, 1H NMR, 13C NMR, EPR and molecular modeling studies. All the complexes are non-electrolyte in nature. On the basis of spectral studies, an octahedral geometry has been assigned for Ni(II) complexes and a tetragonal geometry for Cu(II) complexes.
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Affiliation(s)
- Sulekh Chandra
- Department of Chemistry, Zakir Husain College (University of Delhi), J.L. Nehru Marg, New Delhi 110002, India.
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15
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Etaiw SEH, Abd El-Aziz DM, Abd El-Zaher EH, Ali EA. Synthesis, spectral, antimicrobial and antitumor assessment of Schiff base derived from 2-aminobenzothiazole and its transition metal complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:1331-1337. [PMID: 21612977 DOI: 10.1016/j.saa.2011.04.064] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Revised: 03/17/2011] [Accepted: 04/27/2011] [Indexed: 05/30/2023]
Abstract
N-(thiophen-2-ylmethylene)benzo[d]thiazol-2-amine Schiff base (L) derived from 2-aminobenzothiazole and 2-thiophenecarboxaldehyde was synthesized and characterized using elemental analysis, IR, mass spectra, (1)H NMR and UV-vis spectra. Its complexes with Cu(II), Fe(III), Ni(II) and Zn(II) were prepared and isolated as solid products and characterized by elemental and thermal analyses, spectral techniques as well as magnetic susceptibility. The IR spectra showed that the Schiff base under investigation behaves as bidentate ligand. The UV-vis spectra and magnetic moment data suggested octahedral geometry around Cu(II) and Fe(III) and tetrahedral geometry around Ni(II) and Zn(II). In view of the biological activity of the Schiff base and its complexes, it has been observed that the antimicrobial activity of the Schiff base increased on complexation with the metal ion. In vitro antitumor activity assayed against five human tumor cell lines furnished the significant toxicities of the Schiff base and its complexes.
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16
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Adly OMI. Synthesis, molecular modeling, thermal and spectral studies of metal complexes of hydrazone derived from 5-acetyl-4-hydroxy-2H-1,3-thiazine-2,6(3H)-dione and thiosemicarbazide. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:1295-1303. [PMID: 21616708 DOI: 10.1016/j.saa.2011.04.058] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2011] [Revised: 04/16/2011] [Accepted: 04/27/2011] [Indexed: 05/30/2023]
Abstract
Metal complexes with the general formula [ML(H2O)(CH3OH)x]·nH2O·(CH3OH)y(NO3)z [M=Cu(II), Ni(II), Co(II), VO(IV), Cr(III), Cd(II), Zn(II) or UO2(VI); x=0-2; y=0,1; z=0,1; n=0-2, 6 and L=hydrazone (H2L) derived from condensation of thiosemicarbazide with 5-acetyl-4-hydroxy-2H-1,3-thiazine-2,6(3H)-dione. The synthesized ligand and its metal complexes have been characterized on the basis of elemental analyses, spectral and magnetic studies as well as thermal gravimetric analysis (TGA). The deprotonated ligand acts as a dibasic tridentate (ONS) via phenolate oxygen, azomethine (CN), and thiolate (C-S) groups. Copper(II) complex exhibits square planar geometry. Nickel(II), chromium(III) and dioxouranium(VI) complexes exhibit octahedral geometry. Cobalt(II), cadmium(II) and zinc(II) complexes showed tetrahedral geometry, whereas oxovanadium(IV) reveals square pyramidal geometry. Thermal analysis are investigated and showed either three or four thermal decomposition steps. Kinetic parameters (Ea, A, ΔH, ΔS and ΔG) of the thermal decomposition stages have been evaluated using Coats-Redfern equations. The molecular parameters of the ligand and its metal complexes have been calculated and correlated with the experimental data such as IR and TGA results.
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Affiliation(s)
- Omima M I Adly
- Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11711, Egypt.
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Weyhermüller T, Wagner R, Biswas B, Chaudhuri P. A non-linear (2,2,2) alkoxo-bridging in a FeIII4O6 core potentially relevant to iron-tunicates. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.01.107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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18
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Chaudhuri P, Wagner R, Weyhermüller T. An Oximate‐Free Ferromagnetically Coupled Triangular [Mn
III
3
(μ
3
‐O)]
7+
Core. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200901210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Phalguni Chaudhuri
- Max‐Planck‐Institute for Bioinorganic Chemistry, Stiftstrasse 34–36, 45470 Mülheim an der Ruhr, Germany, Fax: +49‐208‐306‐3951
| | - Rita Wagner
- Max‐Planck‐Institute for Bioinorganic Chemistry, Stiftstrasse 34–36, 45470 Mülheim an der Ruhr, Germany, Fax: +49‐208‐306‐3951
| | - Thomas Weyhermüller
- Max‐Planck‐Institute for Bioinorganic Chemistry, Stiftstrasse 34–36, 45470 Mülheim an der Ruhr, Germany, Fax: +49‐208‐306‐3951
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Refat MS, Chandra S, Tyagi M. Transition Metal Complexes of Dis(thiosemicarbazone): Synthesis and Spectral, and Antifungal Studies. PHOSPHORUS SULFUR 2009. [DOI: 10.1080/10426500802713234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Moamen S. Refat
- a Department of Chemistry, Faculty of Science, Port-Said , Suez Canal University , Port-Said, Egypt
- b Department of Chemistry, Faculty of Science , Taif University , Taif, Kingdom of Saudi Arabia
| | - Sulekh Chandra
- c Department of Chemistry , Zakir Husain College (University of Delhi) , JLN-Marg, New Delhi, India
| | - Monika Tyagi
- c Department of Chemistry , Zakir Husain College (University of Delhi) , JLN-Marg, New Delhi, India
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Chandra S, Gautam A, Tyagi M. Synthesis, structural characterization, and antibacterial studies of a tetradentate macrocyclic ligand and Its Co(II), Ni(II), and Cu(II) complexes. RUSS J COORD CHEM+ 2009. [DOI: 10.1134/s1070328409010060] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Gupta LK, Chandra S. Spectroscopy: the study of DNA cleavage by newly synthesized polydentate macrocyclic ligand and its copper(II) complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 71:496-501. [PMID: 18495526 DOI: 10.1016/j.saa.2007.12.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2007] [Accepted: 12/18/2007] [Indexed: 05/26/2023]
Abstract
A novel hexadentate nitrogen donor [N6] macrocyclic ligand, i.e. 2,6,12,16,21,22-hexaaza-3,5,13,15-tetramethyl-4,14-diethyl-tricyclo-[15.3.1.1(7-11)]docosane-1(21),2,5,7(22),8,10,12,15,17,19-decaene (L), has been synthesized. Copper(II) complexes with this ligand have been prepared and subjected to elemental analyses, molar conductance measurements, magnetic susceptibility measurements, mass, 1H NMR (ligand), IR, electronic, and EPR spectral studies. On the basis of molar conductance the complexes may be formulated as [Cu(L)X2] [X = Cl(-), Br(-), NO3(-) and CH3COO(-)] due to their nonelectrolytic nature in N,N'-dimethylformamide (DMF). All the complexes are of the high spin type and are six coordinated. On the basis of IR, electronic and EPR spectral studies tetragonal geometry has been assigned to the Cu(II) complexes. The interaction of these complexes with calf thymus DNA has been explored by using absorption, emission, viscosity measurements, electrochemical studies and DNA cleavage. All the experimental results suggest that the complexes bind to DNA and also promote the cleavage plasmid pBR 322, in the presence of H2O2 and ascorbic acid.
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Affiliation(s)
- Lokesh Kumar Gupta
- Department of Chemistry, Zakir Husain College, University of Delhi, JLN-Marg, New Delhi 110002, India.
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Chandra S, Raizada S, Tyagi M, Sharma PK. Spectroscopic and biological approach of Ni(II) and Cu(II) complexes of 2-pyridinecarboxaldehyde thiosemicarbazone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 69:816-21. [PMID: 17627876 DOI: 10.1016/j.saa.2007.05.033] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2007] [Revised: 04/23/2007] [Accepted: 05/07/2007] [Indexed: 05/16/2023]
Abstract
Ni(II) and Cu(II) complexes having the general composition [M(L)(2)X(2)] [where L=2-pyridinecarboxaldehyde thiosemicarbazone, M=Ni(II) and Cu(II), X=Cl(-), NO(3)(-) and 1/2 SO(4)(2-)] have been synthesized. All the metal complexes were characterized by elemental analysis, molar conductance, magnetic moment, mass, IR, EPR and electronic spectral studies. The magnetic moment measurements of the complexes indicate that all the complexes are of high-spin type. On the basis of spectral studies an octahedral geometry has been assigned for Ni(II) complexes whereas tetragonal geometry for Cu(II) except [Cu(L)(2)SO(4)] which posseses five coordinated geometry. The ligand and its metal complexes were screened against phytopathogenic fungi and bacteria in vitro.
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Affiliation(s)
- Sulekh Chandra
- Department of Chemistry, Zakir Husain College (University of Delhi), JLN-Marg, New Delhi 110002, India
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Emara AAA, Saleh AA, Adly OMI. Spectroscopic investigations of new binuclear transition metal complexes of Schiff bases derived from 4,6-diacetylresorcinol and 3-amino-1-propanol or 1,3-diamino-propane. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2007; 68:592-604. [PMID: 17321197 DOI: 10.1016/j.saa.2006.12.034] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2006] [Accepted: 12/17/2006] [Indexed: 05/14/2023]
Abstract
The bifunctional carbonyl compound; 4,6-diacetylresorcinol (DAR) serves as precursor for the formation of different Schiff base ligands, which are either di- or tetra-basic with two symmetrical sets of either O2N or N2O tridentate chelating sites. The condensation of 4,6-diacetylresorcinol with 3-amino-1-propanol (3-AP) or 1,3-diaminopropane (DAP), yields the corresponding hexadentate Schiff base ligands, abbreviated as H4La and H2Lb, respectively. The structures of these ligands were elucidated by elemental analyses, IR, mass, 1H NMR and electronic spectra. Reaction of the Schiff base ligands with copper(II), nickel(II), cobalt(II), zinc(II), cadmium(II), iron(III), chromium(III), vanadyl(IV) and uranyl(VI) ions in 1:2 molar ratio afforded the corresponding transition metal complexes. A variety of binuclear complexes for the metal complexes were obtained with the ligands in its di- or tetra-deprotonated forms. The structures of the newly prepared complexes were identified by elemental analyses, infrared, electronic, mass, 1H NMR and ESR spectra as well as magnetic susceptibility measurements and thermal gravimetric analysis (TGA). The bonding sites are the azomethine and amino nitrogen atoms, and phenolic and alcoholic oxygen atoms. The metal complexes exhibit different geometrical arrangements such as square planar, tetrahedral, square pyramid and octahedral arrangement.
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Affiliation(s)
- Adel A A Emara
- Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt.
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Gupta LK, Chandra S. The Spectroscopy: a modern technology in the characterization of novel macrocyclic ligand and its homo-bi-nuclear cobalt (II) complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2007; 68:839-44. [PMID: 17337238 DOI: 10.1016/j.saa.2006.12.068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2006] [Accepted: 12/16/2006] [Indexed: 05/14/2023]
Abstract
A novel hexadentate nitrogen-sulphur donor [N(4)S(2)] macrocyclic ligand, i.e. 3,13-dithio-6,10,16,20-tetraoxo-8,18-dithia-1,2,4,5,11,12,14,15-octaazacyclocosane (L), has been synthesized. Cobalt (II) complexes of this ligand have been prepared and subjected to elemental analyses, molar conductance measurements, magnetic moment susceptibility measurements, mass, (1)H NMR (Ligand), IR, electronic, and EPR spectral studies. On the basis of molar conductance, complexes may be formulated as [Co(2)(L)X(2)]X(2) [where X=Cl(-), Br(-), NO(3)(-) and NCS(-)] due to their 1:2 electrolytic nature in dimethylformamide (DMF). All the complexes are of the high spin type and are four coordinated. On the basis of IR, electronic and EPR spectral studies tetrahedral geometry has been assigned to all the complexes. The antimicrobial activities of the ligand and its complexes, as growth inhibiting agents, have been screened in vitro against several species of bacteria and plant pathogenic fungi.
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Affiliation(s)
- Lokesh Kumar Gupta
- Department of Chemistry, Zakir Husain College, University of Delhi, JLN-Marg, New Delhi, India
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25
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Synthesis and spectroscopic characterization of transition metal complexes of a 12-membered tetraaza [N4] macrocyclic ligand and their biological activity. TRANSIT METAL CHEM 2007. [DOI: 10.1007/s11243-007-0289-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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Emara AAA, Adly OMI. Synthesis and spectroscopic studies of new binuclear transition metal complexes of Schiff bases derived from 4,6-diacetylresorcinol. TRANSIT METAL CHEM 2007. [DOI: 10.1007/s11243-007-0245-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Chandra S, Gupta LK, Agrawal S. Synthesis spectroscopic and biological approach in the characterization of novel [N4] macrocyclic ligand and its transition metal complexes. TRANSIT METAL CHEM 2007. [DOI: 10.1007/s11243-007-0201-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Chandra S, Gupta LK, Agrawal S. Modern spectroscopic and biological approach in the characterization of a novel 14-membered [N4] macrocyclic ligand and its transition metal complexes. TRANSIT METAL CHEM 2007. [DOI: 10.1007/s11243-006-0155-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Yamashita H, Koikawa M, Tokii T. Synthesis, Structure, and Magnetic Properties of Tetranuclear Copper(II) Complexes of Tridentate Dianionic Ligands with an ONO Donor Set. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587250008038245] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Hiromi Yamashita
- a Department of Chemistry , Faculty of Science and Engineering, Saga University , Honjo 1, Saga , 840-8502 , Japan
| | - Masayuki Koikawa
- a Department of Chemistry , Faculty of Science and Engineering, Saga University , Honjo 1, Saga , 840-8502 , Japan
| | - Tadashi Tokii
- a Department of Chemistry , Faculty of Science and Engineering, Saga University , Honjo 1, Saga , 840-8502 , Japan
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Physicochemical and Biological Characterization of Transition Metal Complexes with a Nitrogen Donor Tetra-dentate Novel Macrocyclic Ligand. TRANSIT METAL CHEM 2006. [DOI: 10.1007/s11243-005-0002-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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31
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Liu HY, Wang HY, Shi DQ, Tian JL. Synthesis and Crystal Structure of a Tetranuclear Cubane-like Nickel(II) Complex with 2-Hydroxymethyl-N-salicylideneaniline. CHINESE J CHEM 2006. [DOI: 10.1002/cjoc.200690099] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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32
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Chandra S, Gupta LK. Mass, EPR, IR and electronic spectroscopic studies on newly synthesized macrocyclic ligand and its transition metal complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2005; 62:1125-30. [PMID: 16112603 DOI: 10.1016/j.saa.2005.03.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2005] [Accepted: 03/16/2005] [Indexed: 05/04/2023]
Abstract
Manganese(II), cobalt(II), nickel(II) and copper(II) complexes have been synthesized with a new tetradentate ligand viz. 1,3,7,9-tetraaza-2,4,8,10-tetraketo-6,12-diphenyl-cyclododecane (L) and characterized by the elemental analysis, molar conductance measurements, magnetic susceptibility measurements, mass, 1H NMR, IR, electronic and EPR spectral studies. The molar conductance measurements of the complexes in DMF correspond to be nonelectrolytic nature for Mn(II), Co(II) and Cu(II) while 1:2 electrolytes for Ni(II) complexes. Thus, these complexes may be formulated as [M(L)X2] and [Ni(L)]X2 (where M=Mn(II), Co(II) and Cu(II) and X=Cl- and NO3-). On the basis of IR, electronic and EPR spectral studies an octahedral geometry has been assigned for Mn(II) and Co(II) complexes, square-planar for Ni(II) whereas tetragonal for Cu(II) complexes. The ligand and its complexes were also evaluated against the growth of bacteria and pathogenic fungi in vitro.
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Affiliation(s)
- Sulekh Chandra
- Department of Chemistry, Zakir Husain College, University of Delhi, JLN-Marg, New Delhi 110002, India.
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Syntheses, structures, and magnetic properties of tetranuclear and complexes with ONO tridentate ligands. Polyhedron 2005. [DOI: 10.1016/j.poly.2005.03.084] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Chandra S, Gupta LK. Spectral, physicochemical and biological characterization of 2,5,11,14,19,20-hexaaza-3,12-dimethyl-4,13-dipropyl-tricyclo [13.3.1.1(6-10)]cosane-1(19),2,4,6(20),7,9,11,13,15,17-decaene and its transition metal complexes. TRANSIT METAL CHEM 2005. [DOI: 10.1007/s11243-005-4826-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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35
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Yang SY, Long LS, Huang RB, Zheng LS, Ng SW. Hydroxylation of isophthalic acid in the hydrothermal reaction of CuII-isophthalate system – Syntheses and crystal structures of two coordination polymers. Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2004.12.048] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Chandra S, Gupta LK. Spectroscopic characterization of tetradentate macrocyclic ligand: its transition metal complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2004; 60:2767-2774. [PMID: 15350911 DOI: 10.1016/j.saa.2004.01.015] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2003] [Accepted: 01/13/2004] [Indexed: 05/24/2023]
Abstract
Manganese(II), cobalt(II), nickel(II) and copper(II) complexes are synthesized with a novel tetradentate ligand viz. 1,3,9,11-tetraaza-4,8,12,16-tetraoxo-2,6,10,14-tetrathiacyclohexadecane (L) and characterized by the elemental analysis, molar conductance measurements, magnetic susceptibility measurements, electron impact mass, 1H NMR, IR, electronic and EPR spectral studies. The molar conductance measurements of the complexes in DMSO correspond to be nonelectrolytic nature for Mn(II), Co(II) and Cu(II) while 1:2 electrolytes for Ni(II) complexes. Thus these complexes may be formulated as [M(L)X2] and [Ni(L)]X2 (where M: Mn(II), Co(II), and Cu(II) and X = Cl- and NO3-). On the basis of IR, electronic and EPR spectral studies an octahedral geometry has been assigned for Mn(II) and Co(II) complexes, square-planar for Ni(II) whereas tetragonal for Cu(II) complexes. The ligand and its complexes were also evaluated against the growth of bacteria and pathogenic fungi in vitro.
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Affiliation(s)
- Sulekh Chandra
- Department of Chemistry, Zakir Husain College, University of Delhi, JLN-Marg, New Delhi 110 002, India.
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37
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Chandra S, Gupta LK, Jain D. Spectroscopic studies on Mn(II), Co(II), Ni(II), and Cu(II) complexes with N-donor tetradentate (N4) macrocyclic ligand derived from ethylcinnamate moiety. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2004; 60:2411-2417. [PMID: 15249033 DOI: 10.1016/j.saa.2003.12.016] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2003] [Accepted: 12/11/2003] [Indexed: 05/24/2023]
Abstract
Manganese(II), cobalt(II), nickel(II), and copper(II) complexes are synthesized with a novel tetradentate ligand, viz. 1,5,9,13-tetraaza-6,14-dioxo-8,16-diphenylcyclohexadecane (L) and characterized by the elemental analysis, molar conductance measurements, magnetic susceptibility measurements, mass, 1H NMR, IR, electronic, and EPR spectral studies. The molar conductance measurements of the complexes in DMSO correspond to be nonelectrolyte nature for Mn(II), Co(II), and Cu(II) whereas 1:2 electrolytes for Ni(II) complexes. Thus, these complexes may be formulated as [M(L)X(2)] and [Ni(L)]X(2), respectively (where M = Mn(II), Co(II), and Cu(II) and X = Cl- and NO(3-)). On the basis of IR, electronic, and EPR spectral studies an octahedral geometry has been assigned for Mn(II) and Co(II) complexes, square-planar for Ni(II) whereas tetragonal for Cu(II) complexes. The ligand and its complexes were also evaluated against the growth of bacteria and pathogenic fungi in vitro.
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Affiliation(s)
- Sulekh Chandra
- Department of Chemistry, Zakir Husain College, University of Delhi, JLN-Marg, New Delhi 110 002, India.
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Koikawa M, Yamashita H, Tokii T. Crystal structures and magnetic properties of tetranuclear copper(II) complexes of N-(2-hydroxymethylphenyl)salicylideneimine with a defective double-cubane core. Inorganica Chim Acta 2004. [DOI: 10.1016/j.ica.2004.03.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Synthesis, structure, and characterization of dicopper(II) complex with a new amidate ligand. INORG CHEM COMMUN 2003. [DOI: 10.1016/s1387-7003(02)00709-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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40
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Hankare PP, Chavan SS. Studies on Some Binuclear Metal Complexes with Tetradentate Ligand Derived from 5‐(2′‐Thiazolylazo)salicylaldehyde and 2‐Aminophenol. ACTA ACUST UNITED AC 2003. [DOI: 10.1081/sim-120019996] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Vogt A, Wołowiec S, Prasad RL, Gupta A, Skarlewski J. Synthesis and characterization of nickel(II), copper(II), manganese(III) and iron(III) complexes with new chiral salen-type ligand |N,N′-bis(3,5-di-tert-butylsalicylidene)-(1R,3S)-1,3-diamine-1,2,2-trimethylcyclopentane|. Polyhedron 1998. [DOI: 10.1016/s0277-5387(97)00399-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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43
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