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New cyclam based Zn(II) complexes: effect of flexibility and para substitution on DNA binding, in vitro cytotoxic studies and antimicrobial activities. J CHEM SCI 2022. [DOI: 10.1007/s12039-022-02091-9] [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]
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2
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New azamacrocyclic binuclear Cu(II) aminocarboxylate complexes: Structural, magnetic, spectral and antiproliferative studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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3
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Studies on cobalt(III) complexes of a cyanoethyl derivative of an isomeric hexamethyl tetraazamacrocyclic ligand. J INCL PHENOM MACRO 2021. [DOI: 10.1007/s10847-021-01110-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Afifa Mushtaq, Ali S, Tahir MN, Haider A, Ismail H, Iqbal M. Mixed-Ligand Cu(II) Carboxylates: Synthesis, Crystal Structure, FTIR, DNA Binding, Antidiabetic, and Anti-Alzheimer’s Studies. RUSS J INORG CHEM+ 2019. [DOI: 10.1134/s0036023619110147] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Premkumar M, Kaleeswaran D, Kaviyarasan G, Prasanth DA, Venkatachalam G. Mono and Dinuclear Cu(II) Carboxylate Complexes with Pyridine and 1‐methylimidazole as Co–Ligands: Synthesis, Structure, Antibacterial Activity and Catalytic Nitroaldol Reactions. ChemistrySelect 2019. [DOI: 10.1002/slct.201901078] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Muniyappan Premkumar
- PG & Research Department of ChemistryGovernment Arts College Dharmapuri- 636 705, Tamilnadu India
| | - Dhananjayan Kaleeswaran
- Department of ChemistryIndian Institute of Technology Bombay, Powai Mumbai- 400 076, Maharashtra India
| | - Govindaraj Kaviyarasan
- Department of MicrobiologySchool of BioSciencePeriyar University Salem- 636 011, Tamilnadu India
| | - Dorairaj Arvind Prasanth
- Department of MicrobiologySchool of BioSciencePeriyar University Salem- 636 011, Tamilnadu India
| | - Galmari Venkatachalam
- PG & Research Department of ChemistryGovernment Arts College Dharmapuri- 636 705, Tamilnadu India
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Nikolić MA, Stanković JA, Tanasković SB. Synthesis, characterization, and in vitro antiproliferative and antibacterial studies of tetraazamacrocyclic complexes of Co(II) and Cu(II) with pyromellitic acid. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1459581] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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7
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Soni K, Singh RV, Fahmi N. Synthesis of new macrocyclic complexes of transition metals: Structural characterization and biological activity. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s107036321707026x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kumar A, Vashistha VK, Tevatia P, Singh R. Electrochemical studies of DNA interaction and antimicrobial activities of Mn II, Fe III, Co II and Ni II Schiff base tetraazamacrocyclic complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 176:123-133. [PMID: 28088690 DOI: 10.1016/j.saa.2016.12.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 11/28/2016] [Accepted: 12/13/2016] [Indexed: 06/06/2023]
Abstract
Tetraazamacrocyclic complexes of MnII, FeIII, CoII and NiII have been synthesized by template method. These tetraazamacrocycles have been analyzed with various techniques like molar conductance, IR, UV-vis, mass spectral and cyclic voltammetric studies. On the basis of all these studies, octahedral geometry has been assigned to these tetraazamacrocyclic complexes. The DNA binding properties of these macrocyclic complexes have been investigated by electronic absorption spectra, fluorescence spectra, cyclic voltammetric and differential pulse voltammetric studies. The cyclic voltammetric data showed that ipc and ipa were effectively decreased in the presence of calf thymus DNA, which is a strong evidence for the interaction of these macrocyclic complexes with the calf thymus DNA (ct-DNA). The heterogeneous electron transfer rate constant found in the order: KCoII>KNiII>KMnII which indicates that CoII macrocyclic complex has formed a strong intercalated intermediate. The Stern-Volmer quenching constant (KSV) and voltammetric binding constant were found in the order KSV(CoII)>KSV(NiII)>KSV(MnII) and K+(CoII)>K+(NiII)>K+(MnII) which shows that CoII macrocyclic complex exhibits the high interaction affinity towards ct-DNA by the intercalation binding. Biological studies of the macrocyclic complexes compared with the standard drug like Gentamycin, have shown antibacterial activities against E. coli, P. aeruginosa, B. cereus, S. aureus and antifungal activity against C. albicans.
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Affiliation(s)
- Anuj Kumar
- Department of Chemistry, Gurukula Kangri University, Haridwar 249404, India.
| | | | - Prashant Tevatia
- Department of Chemistry, Gurukula Kangri University, Haridwar 249404, India
| | - Randhir Singh
- Department of Chemistry, Gurukula Kangri University, Haridwar 249404, India
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Das M, Mandal P, Malviya N, Choudhuri I, Charmier MAJ, Morgado S, Mobin SM, Pathak B, Mukhopadhyay S. Copper complexes with a flexible piperazinyl arm: nuclearity driven catecholase activity and interactions with biomolecules. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1236193] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Mriganka Das
- Department of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Indore, India
| | - Poulami Mandal
- Department of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Indore, India
| | - Novina Malviya
- Department of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Indore, India
| | - Indrani Choudhuri
- Department of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Indore, India
| | - Maria Adilia Januário Charmier
- Faculty of Engineering, Universidade Lusófona, Lisbon, Portugal
- CQE, Instituto Superior Técnico-Universidade de Lisboa (IST-UL), Lisbon, Portugal
| | - Susana Morgado
- Faculty of Engineering, Universidade Lusófona, Lisbon, Portugal
| | - Shaikh M. Mobin
- Department of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Indore, India
| | - Biswarup Pathak
- Department of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Indore, India
| | - Suman Mukhopadhyay
- Department of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Indore, India
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Reddy PM, Shanker K, Srinivas V, Krishna ER, Rohini R, Srikanth G, Hu A, Ravinder V. Hydrolysis of Letrozole catalyzed by macrocyclic Rhodium (I) Schiff-base complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 139:43-48. [PMID: 25554950 DOI: 10.1016/j.saa.2014.12.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Revised: 07/23/2014] [Accepted: 12/09/2014] [Indexed: 06/04/2023]
Abstract
Ten mononuclear Rhodium (I) complexes were synthesized by macrocyclic ligands having N4 and N2O2 donor sites. Square planar geometry is assigned based on the analytical and spectral properties for all complexes. Rh(I) complexes were investigated as catalysts in hydrolysis of Nitrile group containing pharmaceutical drug Letrozole. A comparative study showed that all the complexes are efficient in the catalysis. The percent yields of all the catalytic reaction products viz. drug impurities were determined by spectrophotometric procedures and characterized by spectral studies.
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Affiliation(s)
- P Muralidhar Reddy
- Department of Chemistry, Nizam College, Osmania University, Hyderabad, India
| | - K Shanker
- Department of Chemistry, Kakatiya University, Warangal 506 009, Telangana, India
| | - V Srinivas
- Department of Chemistry, Kakatiya University, Warangal 506 009, Telangana, India
| | - E Ravi Krishna
- Department of Chemistry, Kakatiya University, Warangal 506 009, Telangana, India
| | - R Rohini
- Department of Chemistry, Kakatiya University, Warangal 506 009, Telangana, India; Department of Chemistry, National Dong Hwa University, Hualien 974, Taiwan
| | - G Srikanth
- Department of Chemistry, Kakatiya University, Warangal 506 009, Telangana, India
| | - Anren Hu
- Department of Laboratory Medicine and Biotechnology, Tzu Chi University, Hualien, Taiwan.
| | - V Ravinder
- Department of Chemistry, Kakatiya University, Warangal 506 009, Telangana, India.
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Biswas FB, Roy TG, Rahman MA, Emran TB. An in vitro antibacterial and antifungal effects of cadmium(II) complexes of hexamethyltetraazacyclotetradecadiene and isomers of its saturated analogue. ASIAN PAC J TROP MED 2014; 7S1:S534-9. [PMID: 25312179 DOI: 10.1016/s1995-7645(14)60286-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 05/06/2014] [Accepted: 05/29/2014] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE To evaluate the antibacterial and antifungal effects of cadmium(II) complexes with hexamethyltetraazacyclotetradecadiene ligands. METHODS Five coordinated square pyramidal cadmium(II) complexes and six coordinated square octahedral cadmium(II) complexes have been synthesized by interaction of 5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradeca-4,11-diene (denoted by L.2HClO4) and C-chiral isomers of its saturated analogue (denoted by 'teta' and 'tetb') with different salts of Cd(2+) ion [e.g. CdI2, Cd(NO3)2·6H2O, CdCl2·2H2O and Cd(ClO4)2·6H2O] in methanolic solution. Complexes of the ligands were investigated for antibacterial activity by disc diffusion method and antifungal effect by poisoned food technique. RESULTS The newly synthesized cadmium(II) complexes of the ligands were screened as potential antimicrobial agent against a number of medically important bacteria (Staphylococcus aureus, Bacillus cereus, Salmonella typhi, Shigella dysenteriae and Escherichia coli) and against two fungi (Candida albicans and Aspergillus aculeatus). The growth inhibiting activity of the ligands and complexes against bacteria and fungi were compared with the standard antibiotic ampicillin and commercially important antifungal agent, griseofulvin respectively. Among them some of the macrocyclic complexes were found to be more fungitoxic and antibacterial than the reference antifungal drug griseofulvin and antibacterial drug ampicillin respectively. CONCLUSIONS Hexamethyltetraazacyclotetradecadiene ligands and its complexes could be considered as very potential antibacterial and antifungal agent with further investigation.
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Affiliation(s)
- Foni Bushon Biswas
- Department of Chemistry, Mawlana Bhashani Science and Technology University, Santosh, Tangail-1902, Bangladesh
| | - Tapashi Ghosh Roy
- Department of Chemistry, University of Chittagong, Chittagong-4331, Bangladesh
| | - Md Atiar Rahman
- Department of Biochemistry and Molecular Biology, University of Chittagong, Chittagong-4331, Bangladesh.
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Luis Miguel LM, Hisila SO, Navarro RE, Lorena ML, Sugich-Miranda R, Karen OL. Cu(II) and Zn(II) complexes of new 12- and 13-membered dioxopolyazacycloalkanes with pendant amide groups. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.05.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Preparation and characterization of di-, tri-, and tetranuclear schiff base complexes derived from diamines and 3,4-dihydroxybenzaldehyde. Bioinorg Chem Appl 2014; 2013:219356. [PMID: 24453995 PMCID: PMC3886601 DOI: 10.1155/2013/219356] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 09/24/2013] [Accepted: 09/25/2013] [Indexed: 11/30/2022] Open
Abstract
A series of new di-, tri-, and tetranuclear Co(II) and Cu(II) complexes of three new diSchiff base ligands were synthesized by two different methods. The first method involved the synthesis of the three ligands from condensation reaction of 3,4-dihydroxybenzaldehyde (L′H2) with ethylenediamine (en), o-phenylenediamine (o-PD), or 4,5-dimethyl-1,2-phenylendiamine (DMPD) in a mole ratio of 2 : 1 followed by the reaction of the resulting Schiff bases ligands with Cu(II) or Co(II) ions in the presence of 2,2′-bipyridyl (L) to form the di- and trinuclear metal complexes. The second method involved the condensation of the copper complex LCu(II)L′ (L = 2,2′-bipyridyl, L′ = 4-formylbenzene-1,2-bis(olate)) with en, o-PD, or DMPD in a mole ratio of 2 : 1, respectively, followed by reaction with CuCl2 or Cu(ClO4)2 to form di-, tri-, and tetranuclear copper (II) complexes, respectively. The structures of the ligands and metal complexes were characterized by elemental analyses, NMR, and FTIR spectra. The geometries of metal complexes were suggested according to elemental analysis, electronic spectra, thermal analyses, atomic absorption, and magnetic moments and conductivity measurements.
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Antonijević-Nikolić M, Antić-Stanković J, Tanasković SB, Korabik MJ, Gojgić-Cvijović G, Vučković G. Preparation, characterisation and study of in vitro biologically active azamacrocyclic Cu(II) dicarboxylate complexes. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.10.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Pravin N, Raman N. DNA interaction and antimicrobial activity of novel tetradentate imino-oxalato mixed ligand metal complexes. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2013.08.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Chandra S. Synthesis, spectroscopic characterization, molecular modeling and antimicrobial activities of Mn(II), Co(II), Ni(II), Cu(II) complexes containing the tetradentate aza Schiff base ligand. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 103:338-348. [PMID: 23261632 DOI: 10.1016/j.saa.2012.10.065] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2012] [Revised: 10/18/2012] [Accepted: 10/25/2012] [Indexed: 06/01/2023]
Abstract
Mn(II), Co(II), Ni(II), and Cu(II) complexes with a tetradentate macrocyclic ligand [1.2.5.6tetraoxo-3,4,7,8tetraaza-(1,2,3,4,5,6,7,8)tetrabenzene(L)] were synthesized and characterized by elemental analysis, molar conductance measurements, mass, nmr, i.r., electronic and e.p.r. spectral studies. All the complexes are non electrolytes in nature and may be formulated as [M(L)X(2)] [where, M=Mn(II), Co(II), Ni(II), Cu(II) and X=Cl(-), CH(3)COO(-)]. On the basis of i.r., electronic and e.p.r. spectral studies a distorted octahedral geometry has been assigned for all 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, JL Nehru Marg, New Delhi 110 002, India.
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Ravi Krishna E, Muralidhar Reddy P, Sarangapani M, Hanmanthu G, Geeta B, Shoba Rani K, Ravinder V. Synthesis of N₄ donor macrocyclic Schiff base ligands and their Ru (II), Pd (II), Pt (II) metal complexes for biological studies and catalytic oxidation of didanosine in pharmaceuticals. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 97:189-196. [PMID: 22750687 DOI: 10.1016/j.saa.2012.05.073] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Revised: 05/15/2012] [Accepted: 05/29/2012] [Indexed: 06/01/2023]
Abstract
A series of tetraaza (N(4) donor) macrocyclic ligands (L(1)-L(4)) were derived from the condensation of o-phthalaldehyde (OPA) with some substituted aromatic amines/azide, and subsequently used to synthesize the metal complexes of Ru(II), Pd(II) and Pt(II). The structures of macrocyclic ligands and their metal complexes were characterized by elemental analyses, IR, (1)H &(13)C NMR, mass and electronic spectroscopy, thermal, magnetic and conductance measurements. Both the ligands and their complexes were screened for their antibacterial activities against Gram positive and Gram negative bacteria by MIC method. Besides, these macrocyclic complexes were investigated as catalysts in the oxidation of pharmaceutical drug didanosine. The oxidized products were further treated with sulphanilic acid to develop the colored products to determine by spectrophotometrically. The current oxidation method is an environmentally friendly, simple to set-up, requires short reaction time, produces high yields and does not require co-oxidant.
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Affiliation(s)
- E Ravi Krishna
- Department of Chemistry, Kakatiya University, Warangal 506009, A.P., India
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