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Kirmani BH, Shirley S, Kandaswamy M, Steele DJK. Cardioplegia-and science-for global surgery. Eur J Cardiothorac Surg 2024; 65:ezae068. [PMID: 38409742 DOI: 10.1093/ejcts/ezae068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 02/23/2024] [Indexed: 02/28/2024] Open
Affiliation(s)
- Bilal H Kirmani
- Dept of Cardiac Surgery, Liverpool Heart and Chest Hospital, Liverpool, UK
| | - Sarah Shirley
- Dept of Clinical Perfusion, Liverpool Heart and Chest Hospital, Liverpool, UK
| | | | - Duncan J K Steele
- Dept of Cardiac Surgery, Liverpool Heart and Chest Hospital, Liverpool, UK
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George B, Kandaswamy M, Jaganathan U, Kandaswamy S, Raju V. Extension of cardiopulmonary bypass outside the operating room as a short-term bridge to recovery "the poor man's ECMO". Indian J Thorac Cardiovasc Surg 2020; 37:108-111. [PMID: 33442217 DOI: 10.1007/s12055-020-01079-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/09/2020] [Accepted: 10/13/2020] [Indexed: 11/26/2022] Open
Abstract
This report describes the use of conventional cardiopulmonary bypass (CPB) circuit beyond the operating room to the critical care unit to provide cardiopulmonary support for patients requiring emergent resuscitation as well as short-term support for rest and recovery of the heart. We modified the CPB circuit and created a closed extra corporeal membrane oxygenation (ECMO) circuit using a conventional oxygenator excluding the venous reservoir. We believe that this technique provides a short-term mechanical support and also acts as a bridge to recovery, or a bridge to decision, in very limited resource settings.
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Affiliation(s)
- Bincy George
- Department of Cardiac Surgery, G. Kuppuswamy Naidu Memorial Hospital, Coimbatore, Tamilnadu 641037 India
| | - Mathumitha Kandaswamy
- Department of Cardiac Surgery, G. Kuppuswamy Naidu Memorial Hospital, Coimbatore, Tamilnadu 641037 India
| | - Umapathy Jaganathan
- Department of Cardiac Surgery, G. Kuppuswamy Naidu Memorial Hospital, Coimbatore, Tamilnadu 641037 India
| | - Sumathi Kandaswamy
- Department of Cardiac Surgery, G. Kuppuswamy Naidu Memorial Hospital, Coimbatore, Tamilnadu 641037 India
| | - Vijayakumar Raju
- Centre for Pediatric and Adult congenital heart Disease, G.Kuppuswamy Naidu Memorial Hospital, Coimbatore, Tamilnadu India
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Sundaravadivel E, Kandaswamy M. Synthesis, characterization and electrochemical properties of binuclear copper(II) complexes: DNA/protein binding and DNA cleavage studies. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.matpr.2017.12.297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Poornima S, Gunasekaran K, Kandaswamy M. Nuclease activity and interaction studies of unsymmetrical binuclear Ni(ii) complexes with CT-DNA and BSA. Dalton Trans 2015; 44:16361-71. [DOI: 10.1039/c4dt01744g] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new series of binuclear Ni(ii) complexes have been synthesized and their BSA, DNA binding and nuclease activity have been evaluated.
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Affiliation(s)
- S. Poornima
- Department of Inorganic Chemistry
- University of Madras
- Chennai-600025
- India
| | - K. Gunasekaran
- Centre of Advanced Study in Crystallography and Biophysics
- University of Madras
- Chennai-600025
- India
| | - M. Kandaswamy
- Department of Inorganic Chemistry
- University of Madras
- Chennai-600025
- India
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Lakshmi SHA, Kandaswamy M, Ramkumar V. 2,2'-{[(1E,1'E)-(Cyclo-hexane-1,4-diyl)-bis(aza-nylyl-idene)]bis-(ethan-1-yl-1-yl-idene)}diphenol. Acta Crystallogr Sect E Struct Rep Online 2013; 69:o1593. [PMID: 24098267 PMCID: PMC3790448 DOI: 10.1107/s1600536813026123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 09/21/2013] [Indexed: 11/10/2022]
Abstract
The title compound, C22H26N2O2, crystallizes with three independent mol-ecules, two of which are situated on inversion centers, so the asymmetric unit contains two independent half-mol-ecules and one mol-ecule in a general position. The two hy-droxy groups in each mol-ecule are involved in intra-molecular O-H⋯N hydrogen bonds, which generate S(6) rings. In the crystal, weak inter-molecular C-H⋯π inter-actions link the mol-ecules into two crystallographically independent columns propagating along [001]; one column consists of mol-ecules in general positions, while the other column is built from alternating independent centrosymmetric mol-ecules.
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Affiliation(s)
- S H Anjana Lakshmi
- Department of Inorganic Chemistry, University of Madras, Maraimalai Campus (Guindy), Chennai-25, India
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Anbu S, Kandaswamy M. DNA binding, DNA hydrolase and phosphatase like activity of new polyaza macrobicyclic binuclear copper(II), nickel(II) and zinc(II) complexes. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2011.12.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Anbu S, Kandaswamy M, Selvaraj M. DNA binding, DNA hydrolysis and phosphatase-like activity of new macrobicyclic dicopper(II) complexes. Polyhedron 2012. [DOI: 10.1016/j.poly.2011.10.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Anbu S, Kandaswamy M. Electrochemical, magnetic, catalytic, DNA binding and cleavage studies of new mono and binuclear copper(II) complexes. Polyhedron 2011. [DOI: 10.1016/j.poly.2010.09.041] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Iyyam Pillai S, Palsamy P, Subramanian S, Kandaswamy M. Wound healing properties of Indian propolis studied on excision wound-induced rats. Pharm Biol 2010; 48:1198-1206. [PMID: 20819020 DOI: 10.3109/13880200903578754] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
CONTEXT In traditional medicine propolis is widely used for the treatment of various ailments including ulcer and wound healing. The phytochemical screening of Indian propolis indicates the presence of biologically active ingredients in appreciable amounts. In the absence of systematic evaluation of wound healing properties of Indian propolis in the literature, the present study was undertaken. OBJECTIVE The aim of this study was to evaluate the wound healing potential of Indian propolis on excision wounds induced in experimental rats. MATERIALS AND METHODS Excision wounds were created in male Wistar rats and were treated with Indian propolis ointment (nitrofurazone was used as a reference drug - widely used for wound healing) for a period of 14 days. Control rats were treated with petroleum jelly. The parameters analyzed include wound contraction, hydroxyproline, hexosamine, uronic acid, total protein, DNA, and RNA. RESULTS Topical application of propolis ointment for 14 days significantly improved the wound contraction when compared to the control group of rats. The determination of hydroxyproline, hexosamine, uronic acid, DNA, RNA and protein levels in the wound matrix revealed the pro-healing effects of propolis. The results obtained were comparable with nitrofurazone. DISCUSSION AND CONCLUSION It appears that the ethanol extract of Indian propolis possesses significant pro-healing activity by accelerating the healing process at various phases of tissue repair. The presence of biologically active ingredients such as flavonoids, phenolic acids, terpenes, benzoic acids, amino acids and vitamins, etc. in Indian propolis may readily account for the observed prophylactic action of propolis in wound healing.
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Affiliation(s)
- S Iyyam Pillai
- Department of Inorganic Chemistry, University of Madras, Guindy Campus, Chennai, Tamil Nadu, India
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Parimala S, Kandaswamy M, Nissa MN, Velmurugan D. Structural, Magnetic and Electrochemical Studies of a New Series of Macrocyclic Mononuclear and Binuclear Manganese(III) and Unusually Stable Manganese(II) Complexes. J COORD CHEM 2010. [DOI: 10.1080/0095897031000068996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- S. Parimala
- a Department of Inorganic Chemistry , University of Madras , Guindy Campus, Chennai, 600 025, India
| | - M. Kandaswamy
- a Department of Inorganic Chemistry , University of Madras , Guindy Campus, Chennai, 600 025, India
| | - M. Niloffar Nissa
- b Department of Crystallography and Biophysics , University of Madras , Guindy Campus, Chennai, 600 025, India
| | - D. Velmurugan
- b Department of Crystallography and Biophysics , University of Madras , Guindy Campus, Chennai, 600 025, India
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Saravanakumar D, Sengottuvelan N, Narayanan V, Kandaswamy M, Varghese TL. Burning-rate enhancement of a high-energy rocket composite solid propellant based on ferrocene-grafted hydroxyl-terminated polybutadiene binder. J Appl Polym Sci 2010. [DOI: 10.1002/app.32859] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Krishnapriya K, Kandaswamy M. A new chitosan biopolymer derivative as metal-complexing agent: synthesis, characterization, and metal(II) ion adsorption studies. Carbohydr Res 2010; 345:2013-22. [DOI: 10.1016/j.carres.2010.06.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2010] [Revised: 06/02/2010] [Accepted: 06/11/2010] [Indexed: 10/19/2022]
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Pillai I, Kandaswamy M, Subramanian S. Antiulcerogenic and ulcer healing effects of Indian propolis in experimental rat ulcer models. ACTA ACUST UNITED AC 2010. [DOI: 10.3896/ibra.4.02.1.02] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Umadevi M, Devaraj S, Kandaswamy M, Chakkaravarthi G, Manivannan V. 1-[2-(2,4-Dinitro-benzyl-ideneamino)phen-yl]-3-phenyl-thio-urea. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o2447. [PMID: 21577902 PMCID: PMC2970362 DOI: 10.1107/s1600536809035880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2009] [Accepted: 09/04/2009] [Indexed: 05/26/2023]
Abstract
In the title compound, C20H15N5O4S, the central benzene ring makes dihedral angles of 59.5 (1) and 51.7 (1)°, respectively, with the terminal phenyl and benzene rings. The molecular structure exhibits weak intramolecular N—H⋯N and C—H⋯S interactions. In the crystal structure, molecules are linked by weak intermolecular N—H⋯S and C—H⋯O interactions, forming a chain along [11].
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Krishnapriya KR, Kandaswamy M. Synthesis and characterization of a crosslinked chitosan derivative with a complexing agent and its adsorption studies toward metal(II) ions. Carbohydr Res 2009; 344:1632-8. [PMID: 19545861 DOI: 10.1016/j.carres.2009.05.025] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2009] [Revised: 05/27/2009] [Accepted: 05/28/2009] [Indexed: 10/20/2022]
Abstract
A new chitosan derivative has been synthesized by crosslinking a metal complexing agent, [6,6'-piperazine-1,4-diyldimethylenebis (4-methyl-2-formyl) phenol] (L), with chitosan (CTS). The resulting material (CCTSL) was characterized by elemental (CHN), spectral (FTIR and solid-state NMR), thermal (TGA and DTA), and structural (powder XRD and SEM) analyses. Adsorption experiments (pH dependency, kinetics, and equilibrium) of CCTSL toward various metal ions such as Mn(II), Fe(II), Co(II), Cu(II), Ni(II), Cd(II), and Pb(II) were carried out at 25 degrees C. The results showed that the adsorption was dependent on the pH of the solution, with a maximum capacity between pHs 6.5 and 8.5. The kinetics was evaluated by applying the pseudo-first-order and pseudo-second-order equation models and the equilibrium data were analyzed by Langmuir isotherm model. The maximum adsorption capacity was 1.21 mmol g(-1) for Cu(II) and the order of adsorption capacities for the metal(II) ions studied was found to be Cu(II)>Ni(II)>Cd(II)> or =Co(II)> or =Mn(II)> or =Fe(II)> or =Pb(II).
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Affiliation(s)
- K R Krishnapriya
- Department of Inorganic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
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Anbu S, Kandaswamy M, Suthakaran P, Murugan V, Varghese B. Structural, magnetic, electrochemical, catalytic, DNA binding and cleavage studies of new macrocyclic binuclear copper(II) complexes. J Inorg Biochem 2009; 103:401-10. [PMID: 19187967 DOI: 10.1016/j.jinorgbio.2008.12.013] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2008] [Revised: 12/02/2008] [Accepted: 12/04/2008] [Indexed: 11/17/2022]
Affiliation(s)
- S Anbu
- School of Chemical Sciences, Department of Inorganic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
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Krishnapriya KR, Saravanakumar D, Arunkumar P, Kandaswamy M. Synthesis of new oxamide-based ligand and its coordination behavior towards copper(II) ion: spectral and electrochemical studies. Spectrochim Acta A Mol Biomol Spectrosc 2008; 69:1077-81. [PMID: 17690008 DOI: 10.1016/j.saa.2007.06.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2007] [Accepted: 06/02/2007] [Indexed: 05/16/2023]
Abstract
A new ligand N,N'-bis{3-(2-formyl-4-methyl-phenol)-6-iminopropyl}oxamide (L) and its mono- and binuclear copper(II) complexes have been synthesized and characterized. The ligand shows absorption maxima at 249 and 360 with a weak transition at 455 nm. The ligand was found to be fluorescent and shows an emission maximum at 516 nm on excitation at 360 nm. The electronic spectra of the mono- and binuclear Cu(II) complexes exhibited a d-d transition in the region 520-560 nm characteristic of square planar geometry around Cu(II) ion. The ESR spectrum of the mononuclear complex showed four lines with nuclear hyperfine splitting. The binuclear complex showed a broad ESR spectrum with g=2.10 due to antiferromagnetic interaction between the two Cu(II) ions. The room-temperature magnetic moment values (micro(eff)) for the mono- and binuclear Cu(II) complexes are found to be 1.70 micro(B) and 1.45 micro(B), respectively. The electrochemical studies of the mononuclear Cu(II) complex showed a single irreversible one-electron wave at -0.70 V (E(pc)) and the binuclear Cu(II) complex showed two irreversible one-electron reduction waves at -0.75 V (E(pc)(1)) and -1.27 V (E(pc)(2)) in the cathodic region.
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Affiliation(s)
- K R Krishnapriya
- Department of Inorganic Chemistry, School of Chemical Sciences, University of Madras, Guindy Campus, Chennai 600025, India
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Gayathri D, Velmurugan D, Ravikumar K, Devaraj S, Kandaswamy M. 1-{2-[(Anthracen-10-yl)methyl-ene-amino]phen-yl}-3-phenyl-thio-urea. Acta Crystallogr Sect E Struct Rep Online 2008; 64:o408. [PMID: 21201436 PMCID: PMC2960294 DOI: 10.1107/s1600536807068729] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2007] [Accepted: 12/29/2007] [Indexed: 12/02/2022]
Abstract
The title compound, C(28)H(21)N(3)S, crystallizes with two mol-ecules in the asymmetric unit. There are only very slight differences in the torsion angles between the two molecules. The two mol-ecules are stabilized by intra-molecular N-H⋯N inter-actions and the crystal packing is stabilized by inter-molecular N-H⋯S inter-actions.
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Stalin Elanchezhian V, Kandaswamy M, Ponnuswamy MN. 1-(2,4-Dinitro-phen-yl)-5-ferrocenyl-3-methyl-1H-pyrazole. Acta Crystallogr Sect E Struct Rep Online 2008; 64:m265. [PMID: 21201250 PMCID: PMC2960418 DOI: 10.1107/s1600536807067384] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2007] [Accepted: 12/17/2007] [Indexed: 11/10/2022]
Abstract
In the title compound, [Fe(C5H5)(C15H11N4O4)], the dinitrophenyl and cyclopentadienyl rings make dihedral angles of 53.61 (6) and 23.11 (9)°, respectively, with the pyrazole unit. The two cyclopentadienyl rings are in an eclipsed conformation. The crystal structure is stabilized by intermolecular C—H⋯O interactions, which link molecules into chains parallel to the b axis.
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Sengottuvelan N, Saravanakumar D, Kandaswamy M. Electrochemical, magnetic, catalytic and DNA cleavage studies of binuclear copper(II) complexes derived from pendant substituted tetraaza macrobicyclic compartmental ligands. Polyhedron 2007. [DOI: 10.1016/j.poly.2007.04.032] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Narendhirakannan RT, Subramanian S, Kandaswamy M. Anti-inflammatory and lysosomal stability actions of Cleome gynandra L. studied in adjuvant induced arthritic rats. Food Chem Toxicol 2007; 45:1001-12. [PMID: 17276570 DOI: 10.1016/j.fct.2006.12.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2005] [Revised: 07/06/2006] [Accepted: 12/01/2006] [Indexed: 11/19/2022]
Abstract
The present study was aimed to assess the anti-arthritic nature of Cleome gynandra L. (Cat's whiskers) against Freund's complete adjuvant induced arthritis in rats. The ethanolic extract of C. gynandra was administered orally at a dose of 150 mg/kg body weight for 30 days to the experimental rats after the induction of adjuvant arthritis. The anti-inflammatory activity of C. gynandra leaves was assessed by paw volume measurement, and its capacity to stabilize lysosomal enzyme activities in the plasma and liver of control and experimental rats. The activity of pathophysiological enzymes such as AST, ALT, ALP, cathepsin-D, beta-glucuronidase, N-acetyl-beta-glucosaminidase LDH and the levels of glycoproteins were also estimated in plasma and liver. The increased levels of both lysosomal enzymes and protein-bound carbohydrates in arthritic rats were significantly suppressed to near normal level by the administration of C. gynandra extract. Further, the significantly elevated plasma levels of TNF-alpha found in arthritic rats were found to be significantly restored back to near normal levels by the extract in experimental animals. The membrane stabilizing activity of the extract was further evidenced by histological observations made on the limb tissue. Recently, we have reported the presence of many biologically active phyto chemicals such as triterpenes, tannins, anthroquinones, flavonoids, saponins, steroids, resins, lectins, glycosides, sugars, phenolic compounds, and alkaloids in the extract of C. gynandra and these compounds might be responsible for the anti-arthritic properties observed in the present study. The possible mechanism of action of the C. gynandra extract may be through its stabilizing action on lysosomal membranes and there by preventing the spread of inflammation.
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Affiliation(s)
- R T Narendhirakannan
- Department of Inorganic Chemistry, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India
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Krishnapriya KR, Sampath N, Ponnuswamy MN, Kandaswamy M. Synthesis and electrochemical sensing behaviour of a new ferrocene functionalized tet ‘a’ macrocyclic receptor towards transition metal ions. Appl Organomet Chem 2007. [DOI: 10.1002/aoc.1219] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Narendhira R, Subramania S, Kandaswamy M. Evaluation of Anti-inflammatory Activity of Cleome gynandra L. Leaf Extract on Acute and Chronic Inflammatory Arthritis Studied in Rats. ACTA ACUST UNITED AC 2006. [DOI: 10.3923/jpt.2007.44.53] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Narendhirakannan RT, Subramanian S, Kandaswamy M. BIOCHEMICAL EVALUATION OF ANTIDIABETOGENIC PROPERTIES OF SOME COMMONLY USED INDIAN PLANTS ON STREPTOZOTOCIN-INDUCED DIABETES IN EXPERIMENTAL RATS. Clin Exp Pharmacol Physiol 2006; 33:1150-7. [PMID: 17184494 DOI: 10.1111/j.1440-1681.2006.04507.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
1. Diabetes mellitus is a serious metabolic disorder with micro- and macrovascular complications that results in significant morbidity and mortality. 2. The aim of the present study was to evaluate the hypoglycaemic efficacy of commonly used traditional Indian plants, such as Murraya koenigii, Mentha piperitae, Ocimum sanctum and Aegle marmelos, in streptozotocin (STZ)-induced experimental rats. 3. Oral administration of the ethanolic extract of these plants resulted in a significant decrease in the levels of blood glucose, glycosylated haemoglobin and urea, with a concomitant increase in glycogen, haemoglobin and protein, in diabetic rats. Treatment with these plant extracts also resulted in an increase in insulin and C-peptide levels and glucose tolerance. 4. The decreased activities of carbohydrate-metabolising enzymes, such as hexokinase, glucose-6-phosphate dehydrogenase and glycogen synthase, in diabetic rats were significantly elevated towards near normal in rats treated with extracts of M. koenigii, O. sanctum and A. marmelos; the increased activities of lactate dehydrogenase, fructose-1,6-bisphosphatase, glucose-6-phosphatase and glycogen phosphorylase in STZ diabetic rats were significantly reduced following treatment with the plant extracts. 5. Elevated specific binding of [(125)I]-labelled insulin to the receptor found in diabetic rats was markedly decreased in extract-treated groups. However, treatment of diabetic rats with M. piperitae did not result in any significant modification in all parameters. 6. Phytochemical screening conducted by us revealed the presence of biologically active ingredients in the ethanolic extracts of M. koenigii, O. sanctum and A. marmelos, which may readily account for the observed hypoglycaemic activity.
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Thirumavalavan M, Akilan P, Kandaswamy M. Synthesis of heterobinuclear Cu(II)Zn(II) complexes derived from lateral macrobicyclic tricompartmental ligands: Spectral, electrochemical and kinetic studies. Polyhedron 2006. [DOI: 10.1016/j.poly.2006.03.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Thirumavalavan M, Akilan P, Kandaswamy M. Coordination Behaviour of Novel Macrobicyclic Tricompartmental Ligands: Synthesis, Magnetic, Electrochemical and Kinetic Studies of Unsymmetrical Mono- and Binuclear Copper(II) Complexes. Supramol Chem 2006. [DOI: 10.1080/10610270310001614214] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- M. Thirumavalavan
- a Department of Inorganic Chemistry , University of Madras , Guindy Campus, 600 025, Chennai, India
| | - P. Akilan
- a Department of Inorganic Chemistry , University of Madras , Guindy Campus, 600 025, Chennai, India
| | - M. Kandaswamy
- a Department of Inorganic Chemistry , University of Madras , Guindy Campus, 600 025, Chennai, India
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Sengottuvelan N, Saravanakumar D, Sridevi S, Narayanan V, Kandaswamy M. Macrocyclic Unsymmetrical Binuclear Copper(II) Complexes as Ligands: Spectral, Structural, Magnetic and Electrochemical Studies. Supramol Chem 2006. [DOI: 10.1080/10610270310001614205] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- N. Sengottuvelan
- a Department of Inorganic Chemistry , University of Madras , Guindy Campus, 600 025, Chennai, India
| | - D. Saravanakumar
- a Department of Inorganic Chemistry , University of Madras , Guindy Campus, 600 025, Chennai, India
| | - S. Sridevi
- a Department of Inorganic Chemistry , University of Madras , Guindy Campus, 600 025, Chennai, India
| | - V. Narayanan
- a Department of Inorganic Chemistry , University of Madras , Guindy Campus, 600 025, Chennai, India
| | - M. Kandaswamy
- a Department of Inorganic Chemistry , University of Madras , Guindy Campus, 600 025, Chennai, India
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Thirumavalavan M, Akilan P, Kandaswamy M. New Tetraaza Macrobicyclic Ditopic Receptors for Metal Ions: Synthesis, Redox Response and Kinetics of Phosphate Hydrolysis of Unsymmetrical Macrobicyclic Mono- and Binuclear Nickel(II) Complexes. Supramol Chem 2006. [DOI: 10.1080/10610270410001722349] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- M. Thirumavalavan
- a Department of Inorganic Chemistry , University of Madras , Guindy Campus, Chennai, 600 025, India
| | - P. Akilan
- a Department of Inorganic Chemistry , University of Madras , Guindy Campus, Chennai, 600 025, India
| | - M. Kandaswamy
- a Department of Inorganic Chemistry , University of Madras , Guindy Campus, Chennai, 600 025, India
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Thirumavalavan M, Akilan P, Kandaswamy M. Electrochemical and kinetic response of heterobinuclear Ni(II)Zn(II) complexes derived from unsymmetrical lateral macrobicyclic tricompartmental ligands. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2006.02.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Narendhirakannan RT, Subramanian S, Kandaswamy M. Free radical scavenging activity of Cleome gynandra L. leaves on adjuvant induced arthritis in rats. Mol Cell Biochem 2005; 276:71-80. [PMID: 16132687 DOI: 10.1007/s11010-005-3234-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2005] [Accepted: 03/03/2005] [Indexed: 10/25/2022]
Abstract
The generation of free radicals has been implicated in the causation of several diseases of known and unknown etiologies such as, rheumatoid arthritis, diabetes, cancer, etc., and compounds that can scavenge free radicals have great potential in ameliorating these disease processes. The present study was aimed to investigate the possible anti-oxidant potential of Cleome gynandra leaf extract at a dose of 150 mg/kg body weight for 30 days on adjuvant induced arthritis in experimental rats. Oral administration of C. gynandra leaf extract significantly increased the levels of lipid peroxides and activities of catalase, glutathione peroxidase and decreased the levels of reduced glutathione and superoxide dismutase activity in arthritis induced rats. The free radical scavenging activity of the plant was further evidenced by histological observations made on the limb tissue. The presence of biologically active ingredients and vital trace elements in the leaves readily account for free radical scavenging property of C. gynandra.
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Narendhirakannan RT, Kandaswamy M, Subramanian S. Anti-Inflammatory Activity ofCleome gynandraL. on Hematological and Cellular Constituents in Adjuvant-Induced Arthritic Rats. J Med Food 2005; 8:93-9. [PMID: 15857216 DOI: 10.1089/jmf.2005.8.93] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Cleome gynandra L. (cat whiskers) has traditionally been used for the treatment of rheumatic and other inflammatory conditions. In this work, the methanolic extract of the leaves of C. gynandra exhibited significant anti-inflammatory activity in adjuvant-induced arthritic rats. Phytochemical screening was carried out to ascertain the qualitative composition of the leaves. Arthritis was induced by Freund's complete adjuvant. A significant decrease in paw edema with a remarkable increase in body weight was observed following oral administration of the leaf extract (150 mg/kg of body weight). The alterations in hematological and other biochemical parameters were restored to near normal after a treatment period of 30 days. These results demonstrate that the plant extract has no harmful effect and exerts in vivo anti-inflammatory properties against adjuvant-induced arthritis.
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Affiliation(s)
- R T Narendhirakannan
- Department of Inorganic Chemistry, University of Madras, Chennai, Tamil Nadu, India
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Narendhirakannan RT, Subramanian S, Kandaswamy M. Mineral content of some medicinal plants used in the treatment of diabetes mellitus. Biol Trace Elem Res 2005; 103:109-15. [PMID: 15772435 DOI: 10.1385/bter:103:2:109] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2004] [Accepted: 05/20/2004] [Indexed: 11/11/2022]
Abstract
It is known that certain inorganic trace elements such as vanadium, zinc, chromium, copper, iron, potassium, sodium, and nickel play an important role in the maintenance of normoglycemia by activating the beta-cells of the pancreas. In the present study, the elemental composition in the leaves of four traditional medicinal plants (Murraya koenigii, Mentha piperitae, Ocimum sanctum, and Aegle marmelos) widely used in the treatment of diabetes-related metabolic disorders has been studied using atomic absorption spectroscopy. The levels of Cu, Ni, Zn, K, and Na were found to be in trace amounts, whereas Fe, Cr, and V levels were found in marginal levels. The importance of these elements in disorders related to diabetes is also briefly discussed.
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Ramachandran B, Sekar DS, Kandaswamy M, Narayanan V, Subramanian S. Hypoglycemic effect of macrocyclic binuclear oxovanadium (IV) complex on streptozotocin-induced diabetic rats. Exp Diabesity Res 2005; 5:137-42. [PMID: 15203884 PMCID: PMC2496883 DOI: 10.1080/15438600490277842] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Though vanadium complexes mimic the action of insulin,
owing to their toxicity, research is still in progress for a new
vanadium complex with maximum efficacy at low concentration
and without any side effects. A novel macrocyclic
binuclear oxovanadium complex was synthesized, its composition
and structure were confirmed by spectral studies
and its efficacy was studied in streptozotocin-induced diabetic
rats over a period of 30 days. The oral administration
of the complex normalizes the blood glucose level in
the diabetic rats and also maintains normoglycemia after
a glucose load. The biochemical studies revealed that the
complex is not toxic to the system. The nontoxic nature of
this complex may be due to the presence of the vanadyl
ions in an intact form. The study highlights the nontoxic
and hypoglycemic effects of the new macrocyclic binuclear
oxovanadium complex.
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Affiliation(s)
- B. Ramachandran
- Department of Biochemistry and Molecular BiologyUniversity of MadrasTamil NaduGuindy CampusChennai600 025India
| | - D. Sathish Sekar
- Department of Biochemistry and Molecular BiologyUniversity of MadrasTamil NaduGuindy CampusChennai600 025India
| | - M. Kandaswamy
- Department of Inorganic ChemistryUniversity of MadrasGuindy CampusChennaiIndia
| | - V. Narayanan
- Department of Inorganic ChemistryUniversity of MadrasGuindy CampusChennaiIndia
| | - S. Subramanian
- Department of Biochemistry and Molecular BiologyUniversity of MadrasTamil NaduGuindy CampusChennai600 025India
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Krishnapriya K, Kandaswamy M. Coordination properties of a dicompartmental ligand with tetra- and hexadentate coordination sites towards copper (II) and nickel (II) ions. Polyhedron 2005. [DOI: 10.1016/j.poly.2004.10.010] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Saravanakumar D, Sengottuvelan N, Priyadarshni G, Kandaswamy M, Okawa H. Synthesis of unsymmetrical ‘end-off’ phenoxo and oximinato di bridged copper(II) and nickel(II) complexes: spectral, electrochemical and magnetic properties. Polyhedron 2004. [DOI: 10.1016/j.poly.2003.11.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Thirumavalavan M, Akilan P, Amudha P, Kandaswamy M. Compartmental unsymmetrical lateral macrobicyclic ligands with an aromatic backbone providing a phenoxo bridge: synthetic, spectral, magnetic, electrochemical and kinetic features of mono and binuclear copper(II) complexes. Polyhedron 2004. [DOI: 10.1016/j.poly.2003.09.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Akilan P, Thirumavalavan M, Kandaswamy M. Synthesis of mono and binuclear copper(II) complexes using new macrobicyclic tricompartmental unsymmetrical ligands: magnetic, electrochemical and catalytic studies. Polyhedron 2003. [DOI: 10.1016/j.poly.2003.09.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ramachandran B, Kandaswamy M, Narayanan V, Subramanian S. Insulin mimetic effects of macrocyclic binuclear oxovanadium complexes on streptozotocin-induced experimental diabetes in rats. Diabetes Obes Metab 2003; 5:455-61. [PMID: 14617232 DOI: 10.1046/j.1463-1326.2003.00302.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIM The vanadium complexes so far tested for their insulin mimetic effects are either mono- or binuclear and contain only acyclic ligands. The leaching or hydrolysis of vanadyl ions from these complexes is much easier, and hence they elicit side effects. In the present study, a new binuclear macrocyclic oxovanadium complex was synthesized, and its efficacy was studied on streptozotocin (STZ)-induced diabetic rats over a period of 30 days. METHODS The insulin mimetic effect of the complex was tested on the blood sugar level in the STZ-diabetic rats and on the activities of the carbohydrate-metabolizing enzymes present in the liver. RESULTS Administration of vanadium complex to STZ-induced diabetic rats decreased blood glucose levels from hyperglycaemic to normoglycaemic when compared to diabetic rats. The activity of carbohydrate-metabolizing enzymes such as hexokinase, glucose-6-phosphate dehydrogenase, glycogen synthase and glycogen content were increased to near normal in vanadium complex-administered diabetic rats. The biochemical studies such as assay of blood urea and glutamate oxaloacetate transaminases revealed that the complex is not toxic to the system. CONCLUSION The nontoxic nature of this complex may be due to the presence of the vanadyl ions in an intact macrocyclic form. Further, the vanadyl ions present in the macrocyclic binuclear oxovanadium complex are very close to each other, and this may enhance the insulin mimetic activity by synergic effect.
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Affiliation(s)
- B Ramachandran
- Department of Biochemistry and Molecular Biology, University of Madras, Guindy Campus, Chennai, Tamil Nadu, India
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Parimala S, Kandaswamy M. Mononuclear, dinuclear nickel(II) and heterodinuclear Zn(II)Ni(II) complexes as models for the active site of phosphatase. INORG CHEM COMMUN 2003. [DOI: 10.1016/s1387-7003(03)00243-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Akilan P, Thirumavalavan M, Kandaswamy M. Lateral macrobicyclic tricompartmental ligands: synthetic, spectral, magnetic, electrochemical and kinetic aspects of binuclear copper(II) complexes. Polyhedron 2003. [DOI: 10.1016/s0277-5387(03)00195-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Thirumavalavan M, Akilan P, Kandaswamy M, Chinnakali K, Kumar GS, Fun HK. Synthesis of lateral macrobicyclic compartmental ligands: structural, magnetic, electrochemical, and catalytic studies of mono- and binuclear copper(II) complexes. Inorg Chem 2003; 42:3308-17. [PMID: 12739972 DOI: 10.1021/ic020633+] [Citation(s) in RCA: 114] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of putative mono- and binuclear copper(II) complexes, of general formulas [CuL](ClO(4)) and [Cu(2)L](ClO(4))(2), respectively, have been synthesized from lateral macrocyclic ligands that have different compartments, originated from their corresponding precursor compounds (PC-1, 3,4:9,10-dibenzo-1,12-[N,N'-bis[(3-formyl-2-hydroxy-5-methyl)benzyl]diaza]-5,8-dioxacyclotetradecane; and PC-2, 3,4:9,10-dibenzo-1,12-[N,N'-bis[(3-formyl-2-hydroxy-5-methyl)benzyl]diaza]-5,8-dioxacyclopentadecane). The precursor compound PC-1 crystallized in the triclinic system with space group P(-)1. The mononuclear copper(II) complex [CuL(1a)](ClO(4)) is crystallized in the monoclinic system with space group P2(1)/c. The binuclear copper(II) complex [Cu(2)L(2c)](ClO(4))(2) is crystallized in the triclinic system with space group P(-)1; the two Cu ions have two different geometries. Electrochemical studies evidenced that one quasi-reversible reduction wave (E(pc) = -0.78 to -0.87 V) for mononuclear complexes and two quasi-reversible one-electron-transfer reduction waves (E(1)(pc) = -0.83 to -0.92 V, E(2)(pc) = -1.07 to -1.38 V) for binuclear complexes are obtained in the cathodic region. Room-temperature magnetic-moment studies convey the presence of antiferromagnetic coupling in binuclear complexes [mu(eff) = (1.45-1.55)mu(B)], which is also suggested from the broad ESR spectra with g = 2.10-2.11, whereas mononuclear complexes show hyperfine splitting in ESR spectra and they have magnetic-moment values that are similar to the spin-only value [mu(eff) = (1.69-1.72)mu(B)]. Variable-temperature magnetic susceptibility study of the complex shows that the observed -2J value for the binuclear complex [Cu(2)L(1b)](ClO(4))(2) is 214 cm(-1). The observed initial rate-constant values of catechol oxidation, using complexes as catalysts, range from 4.89 x 10(-3) to 5.32 x 10(-2) min(-1) and the values are found to be higher for binuclear complexes than for the corresponding mononuclear complexes.
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Affiliation(s)
- M Thirumavalavan
- Department of Inorganic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
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Thirumavalavan M, Akilan P, Kandaswamy M, Chinnakali K, Kumar GS, Fun HK. Synthesis of lateral macrobicyclic compartmental ligands: structural, magnetic, electrochemical, and catalytic studies of mono- and binuclear copper(II) complexes. Inorg Chem 2003. [PMID: 12739972 DOI: 10.1021/ic020633] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of putative mono- and binuclear copper(II) complexes, of general formulas [CuL](ClO(4)) and [Cu(2)L](ClO(4))(2), respectively, have been synthesized from lateral macrocyclic ligands that have different compartments, originated from their corresponding precursor compounds (PC-1, 3,4:9,10-dibenzo-1,12-[N,N'-bis[(3-formyl-2-hydroxy-5-methyl)benzyl]diaza]-5,8-dioxacyclotetradecane; and PC-2, 3,4:9,10-dibenzo-1,12-[N,N'-bis[(3-formyl-2-hydroxy-5-methyl)benzyl]diaza]-5,8-dioxacyclopentadecane). The precursor compound PC-1 crystallized in the triclinic system with space group P(-)1. The mononuclear copper(II) complex [CuL(1a)](ClO(4)) is crystallized in the monoclinic system with space group P2(1)/c. The binuclear copper(II) complex [Cu(2)L(2c)](ClO(4))(2) is crystallized in the triclinic system with space group P(-)1; the two Cu ions have two different geometries. Electrochemical studies evidenced that one quasi-reversible reduction wave (E(pc) = -0.78 to -0.87 V) for mononuclear complexes and two quasi-reversible one-electron-transfer reduction waves (E(1)(pc) = -0.83 to -0.92 V, E(2)(pc) = -1.07 to -1.38 V) for binuclear complexes are obtained in the cathodic region. Room-temperature magnetic-moment studies convey the presence of antiferromagnetic coupling in binuclear complexes [mu(eff) = (1.45-1.55)mu(B)], which is also suggested from the broad ESR spectra with g = 2.10-2.11, whereas mononuclear complexes show hyperfine splitting in ESR spectra and they have magnetic-moment values that are similar to the spin-only value [mu(eff) = (1.69-1.72)mu(B)]. Variable-temperature magnetic susceptibility study of the complex shows that the observed -2J value for the binuclear complex [Cu(2)L(1b)](ClO(4))(2) is 214 cm(-1). The observed initial rate-constant values of catechol oxidation, using complexes as catalysts, range from 4.89 x 10(-3) to 5.32 x 10(-2) min(-1) and the values are found to be higher for binuclear complexes than for the corresponding mononuclear complexes.
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Affiliation(s)
- M Thirumavalavan
- Department of Inorganic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
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45
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Manonmani J, Kandaswamy M. Synthesis, characterization and electrochemical studies of unsymmetrical macrocyclic mono and binuclear nickel(II) complexes. Polyhedron 2003. [DOI: 10.1016/s0277-5387(03)00026-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sengottuvelan N, Manonmani J, Kandaswamy M. Synthesis of unsymmetrical compartmental oxime nickel(II) and copper(II) complexes: spectral, electrochemical and magnetic studies. Polyhedron 2002. [DOI: 10.1016/s0277-5387(02)01276-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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47
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Manonmani J, Thirumuruhan R, Kandaswamy M, Narayanan V, Shanmuga Sundara Raj S, Ponnuswamy M, Shanmugam G, Fun H. Synthesis of copper(II) and nickel(II) complexes using compartmental ligands: X-ray, electrochemical and magnetic studies. Polyhedron 2001. [DOI: 10.1016/s0277-5387(01)00901-9] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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48
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Manonmani J, Thirumurugan R, Kandaswamy M, Kuppayee M, Sundara Raj S, Ponnuswamy M, Shanmugam G, Fun H. Synthesis of mononuclear nickel(II) and copper(II) complexes using compartmental ligands: X-ray and electrochemical studies. Polyhedron 2000. [DOI: 10.1016/s0277-5387(00)00498-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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49
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Balakrishnarajan MM, Jemmis ED, Gupta S, Mazumdar S, Mukherjee P, Machonkin T, Dubois JL, Cole AP, Hedman B, Hodgson KO, Solomon EI, Stack TDP, Roesky HW, Manoharan PT, Baitalik S, Nag K, Sarkar S, Seshadri R, Felser C, Nixon JF, Katti KV, Pillarsetty N, Kamei H, Bora U, Chaudhuri MK, Dhar SS, Kalita D, Anand BN, Ramanan A, Roy P, Duraisamy T, Sharma S, Ayyappan P, Gupta BD, Kanth VV, Singh V, Suresh E, Boopalan K, Jasra RV, Bhadbhade MM, Naganagowda GA, Ramanathan KV, Gayathri V, Nanjegowda NM, Sengupta P, Ghosh S, Bhattacharjee M, Gupta SS, Datta R, Sastri CV, Easwaramoorthy D, Lakshmi A, Giribabu L, Maiya BG, Reddy PR, Radhika M, Nightingale KF, Srinivasan R, Venkatesan R, Rajendiran TM, Sambasiva Rao P, Bhavana P, Bhyrappa P, Ravikanth M, Kumaraswamy S, Kommana P, Padmaja G, Kumara Swamy KC, Mondal B, Chakraborty S, Lahiri GK, Ray M, Que L, Saxena A, Sampriya N, Brar AS, Shankar R, Sahoo BB, Panday G, Wasthi AA, Chauhan SMS, Wadhwani P, Bandyopadhyay DK, Bandyopadhyay R, Biswas S, Bhattacharyya R, Johis V, Kotkar D, Pathak VS, Swayambhunathan V, Kamat P, Das A, Ghosh PK, Gupta R, Mukherjee R, Walawalkar MG, Pal SK, Krishnan A, Samuelson AG, Das PK, Anantharaman G, Baheti K, Murugavel R, Garg G, Ganguli AK, Suresh M, Prasadarao AV, Neeraj S, Natarajan S, Rao CNR, Vanitha PV, Santhosh PN, Rao CNR, Kumar GG, Munichandraiah N, Ramakrishna TVV, Elias AJ, Vij A, Rajak KK, Rath SP, Dutta S, Bhattacharya PK, Natarajan P, Paul P, Dhanasekaran T, Prakash H, Mangayarkarasi N, Zacharias PS, Srinivasan A, Pushpan SK, Anand VG, Chandrashekar TK, Tripathi P, Som A, Bharadwaj PK, Mathew N, Jagirdar BR, Mandal SK, Naganagowda GA, Krishnamurthy SS, Singh UP, Singh R, Hikichi S, Moro-Oka Y, Sevagapandian S, Nehru K, Athappan PR, Murali M, Palaniandavar M, Singh RB, Mitra S, Reddy PAN, Datta R, Chakravarty AR, Sunkari S, Rajasekharan MV, Shukla AD, Bajaj HC, Das A, Krishnamurthy D, Sathiyendiran M, Murugavel R, Rao KM, Boag NM, Neogi DN, Bhawmick R, Bandyopadhyay P, Thomas AM, Mandal GC, Tiwary SK, Chakravarty AR, Sah AK, Das TM, Wegelius EK, Kolehmainen E, Saarenketo PK, Rissanen K, Rao CP, Warad DU, Satish CD, Bajgur CS, Manonmani J, Narayanan V, Kandaswamy M, Kingston JV, Sundaram GSM, Rao MNS, Rajendiran TM, Kannappan R, Venkatesan R, Rao PS, Bilakhiya AK, Tyagi B, Paul P, Dhar SD, Chaudhuri MK, Ghosh T, Banerjee R, Kureshy RI, Khan NH, Abdi SHR, Patel ST, Iyer P, Jasra RV, Chatterjee D, Mitra A, Mukherjee S, Ganesan V, Ramaraj R, Shunmugasundari T, Thanasekaran P, Rajagopal S, Bohra R, Sharma N, Nagar S, Panda R, Balakrishna MS, Vaidhyanathan R, Natarajan S, Rao CNR, Choudhury A, Natarajan S, Rao CNR, Chakrabarty D, Mahapatra S, Devi MS, Vidyasagar K, Mody HM, Pandya P, Bhatt P, Jasra RV, Padmanabhan M, Mathew T, Shukla AD, Dave PC, Suresh E, Pathak G, Das A, Dastidar P, Mahalakshmi L, Krishnamurthy SS, Nethaji M, Rath N, Mathew N, Jagirdhar B, Gopalan RS, Kulkarni GU, Sridevi S, Narayanan J, Chandrashekar TK, Saha A, Ghosh AK, Majumdar P, Goswami S, Abhyankar RM, Balakrishna MS, Basuli F, Bhattacharya S, Mondal N, Saha MK, Bag B, Mitra S, Pal S, Sangeetha NR, Pal S, Dey M, Saarenketo PK, Kolehmainen E, Rissanen K, Rao CP, Suresh E, Bhadbhade MM, Padmakumar K, Manoharan PT, Vernekar B, Srinivasan BR, Ramesh K, Bharathi DS, Samuelson AG, Lokanath NK, Shridhar MA, Prasad S, Venkatraman NV, Vasudevan S, Mimani T, Patil KC, Tiwari AP, Mukkada BJ, Arunan E, Mathias PC, Abraham B, Karthikeyan B, Pal SK, Samuelson AG, Umapathy S, Panda PK, Krishnan V. Abstract. J CHEM SCI 2000. [DOI: 10.1007/bf02706182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kuppayee M, Kumaran D, Ponnuswamy MN, Kandaswamy M, Violet MJ, Chinnakali K, Fun HK. 1,4-Bis(2-hydroxy-5-methylbenzyl)piperazine. Acta Crystallogr C 1999. [DOI: 10.1107/s0108270199010781] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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