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Gayathri S, Viswanathamurthi P, Naveen K, Murugan K. Convenient synthesis of symmetrical azines from alcohols and hydrazine catalyzed by ruthenium(II) hydrazone complex in air. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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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Gayathri S, Viswanathamurthi P, Thuslim V, Sathya M, Ranjani M, Prabhakaran R, Haribabu J, Echeverria C. Synthesis, structural, DNA/protein binding and cytotoxic studies of copper(I) ∝-diimine hydrazone complexes. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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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Ramachandran R, Prakash G, Viswanathamurthi P, Malecki J. Ruthenium(II) complexes containing phosphino hydrazone/thiosemicarbazone ligand: An efficient catalyst for regioselective N-alkylation of amine via borrowing hydrogen methodology. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.03.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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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Anitha P, Manikandan R, Vijayan P, Anbuselvi S, Viswanathamurthi P. Rhodium(I) complexes containing 9,10-phenanthrenequinone-N-substituted thiosemicarbazone ligands: Synthesis, structure, DFT study and catalytic diastereoselective nitroaldol reaction studies. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.06.004] [Citation(s) in RCA: 3] [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: 12/12/2022]
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Anitha P, Manikandan R, Prakash G, Pachiyappan B, Viswanathamurthi P, Malecki J. Ruthenium(II) 8-quinolinolates: Synthesis, characterization, crystal structure and catalysis in the synthesis of 2-oxazolines. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.06.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [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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Poonkuzhali K, Rajeswari V, Saravanakumar T, Viswanathamurthi P, Park SM, Govarthanan M, Sathishkumar P, Palvannan T. Reduction of hexavalent chromium using Aerva lanata L.: elucidation of reduction mechanism and identification of active principles. J Hazard Mater 2014; 272:89-95. [PMID: 24681590 DOI: 10.1016/j.jhazmat.2014.03.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 03/04/2014] [Accepted: 03/07/2014] [Indexed: 06/03/2023]
Abstract
The effluent discharge treatment for controlling the environment from non biodegradable metal contaminants using plant extract is an efficient technique. The reduction of hexavalent chromium by abundantly available weed, Aerva lanata L. was investigated using batch equilibrium technique. The variables studied were Cr(VI) concentration, Aerva lanata L. dose, contact time, pH, temperature and agitation speed. Cyclic voltammetry and ICP-MS analysis confirmed the reduction of Cr(VI) to Cr(III). Electrochemical analysis proved that, the chromium has not been degraded and the valency of the chromium has only been changed. ICP-MS analysis shows that 100ng/L of hexavalent chromium was reduced to 97.01ng/L trivalent chromium. These results suggest that components present in the Aerva lanata L. are responsible for the reduction of Cr(VI) to Cr(III). The prime components ferulic acid, kaempherol and β-carboline present in the Aerva lanata L. may be responsible for the reduction of Cr(VI) as evident from LC-MS analysis.
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Affiliation(s)
- K Poonkuzhali
- Bioprocess and Engineering Laboratory, Department of Biochemistry, Periyar University, Salem - 11, Tamil Nadu, India
| | - V Rajeswari
- Coordination Chemistry Research Laboratory, Department of chemistry, Periyar University, Salem - 11, Tamil Nadu, India
| | - T Saravanakumar
- Division of Biotechnology, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 570-752, Korea
| | - P Viswanathamurthi
- Coordination Chemistry Research Laboratory, Department of chemistry, Periyar University, Salem - 11, Tamil Nadu, India
| | - Seung-Moon Park
- Division of Biotechnology, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 570-752, Korea
| | - M Govarthanan
- Division of Biotechnology, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 570-752, Korea
| | - P Sathishkumar
- Institute of Environmental and Water Resource Management (IPASA), Building No.: C07, Universiti Teknologi Malaysia, 81310 Skudai, Johor Bahru, Johor, Malaysia
| | - T Palvannan
- Bioprocess and Engineering Laboratory, Department of Biochemistry, Periyar University, Salem - 11, Tamil Nadu, India.
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Manikandan R, Prakash G, Kathirvel R, Viswanathamurthi P. Ruthenium(II) carbonyl complexes bearing quinoline-based NNO tridentate ligands as catalyst for one-pot conversion of aldehydes to amides and o-allylation of phenols. Spectrochim Acta A Mol Biomol Spectrosc 2013; 116:501-508. [PMID: 23978737 DOI: 10.1016/j.saa.2013.07.114] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 07/24/2013] [Accepted: 07/31/2013] [Indexed: 06/02/2023]
Abstract
Six new octahedral ruthenium(II) carbonyl complexes having the general molecular formula [RuCl(CO)(B)L(1-2)] (B = PPh3, AsPh3 or py; L(1-2) = quinoline based NNO ligand) were synthesized. The quinoline based ligands behave as monoanionic tridentate donor and coordinated to ruthenium via ketoenolate oxygen, azomethine nitrogen and quinoline nitrogen. The composition of the complexes has been established by elemental analysis and spectral methods (FT-IR, electronic, (1)H NMR, (13)C NMR, (31)P NMR and ESI-Mass). The complexes were used as efficient catalysts for one-pot conversion of various aldehydes to their corresponding primary amides in presence of NH2OH · HCl and NaHCO3. The effect of catalyst loading and reaction temperature on catalytic activity of the ruthenium(II) carbonyl complexes were also investigated. The synthesized complexes also possess good catalytic activity for the o-allylation of phenols in the presence of K2CO3 under mild conditions. The complexes afforded branched allyl aryl ethers according to a regioselective reaction.
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Affiliation(s)
- R Manikandan
- Department of Chemistry, Periyar University, Salem 636 011, India
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Nirmala M, Manikandan R, Prakash G, Viswanathamurthi P. Ruthenium(II) complexes of hybrid 8-hydroxyquinoline-thiosemicarbazone ligands: synthesis, characterization and catalytic applications. Appl Organomet Chem 2013. [DOI: 10.1002/aoc.3052] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- M. Nirmala
- Department of Chemistry; Periyar university; Salem 636011 India
| | - R. Manikandan
- Department of Chemistry; Periyar university; Salem 636011 India
| | - G. Prakash
- Department of Chemistry; Periyar university; Salem 636011 India
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Anitha P, Manikandan R, Endo A, Hashimoto T, Viswanathamurthi P. Ruthenium(II) complexes containing quinone based ligands: synthesis, characterization, catalytic applications and DNA interaction. Spectrochim Acta A Mol Biomol Spectrosc 2012; 99:174-180. [PMID: 23063861 DOI: 10.1016/j.saa.2012.09.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Accepted: 09/09/2012] [Indexed: 06/01/2023]
Abstract
1,2-Naphthaquinone reacts with amines such as semicarbazide, isonicotinylhydrazide and thiosemicarbazide in high yield procedure with the formation of tridentate ligands HL(n) (n=1-3). By reaction of ruthenium(II) starting complexes and quinone based ligands HL(n) (n=1-3), a series of ruthenium complexes were synthesized and characterized by elemental and spectroscopic methods (FT-IR, electronic, (1)H, (13)C, (31)P NMR and ESI-MS). The ligands were coordinated to ruthenium through quinone oxygen, imine nitrogen and enolate oxygen/thiolato sulfur. On the basis of spectral studies an octahedral geometry may be assigned for all the complexes. Further, the catalytic oxidation of primary, secondary alcohol and transfer hydrogenation of ketone was carried out. The DNA cleavage efficiency of new complexes has also been tested.
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Affiliation(s)
- P Anitha
- Department of Chemistry, Periyar University, Salem 636 011, India
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Manikandan R, Viswanathamurthi P, Muthukumar M. Ruthenium(II) hydrazone Schiff base complexes: synthesis, spectral study and catalytic applications. Spectrochim Acta A Mol Biomol Spectrosc 2011; 83:297-303. [PMID: 21924947 DOI: 10.1016/j.saa.2011.08.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Revised: 08/17/2011] [Accepted: 08/22/2011] [Indexed: 05/31/2023]
Abstract
Ruthenium(II) hydrazone Schiff base complexes of the type [RuCl(CO)(B)(L)] (were B=PPh(3), AsPh(3) or Py; L=hydrazone Schiff base ligands) were synthesized from the reactions of hydrazone Schiff base ligand (obtained from isonicotinoylhydrazide and different hydroxy aldehydes) with [RuHCl(CO)(EPh(3))(2)(B)] (where E=P or As; B=PPh(3), AsPh(3) or Py) in 1:1 molar ratio. All the new complexes have been characterized by analytical and spectral (FT-IR, electronic, (1)H, (13)C and (31)P NMR) data. They have been tentatively assigned an octahedral structure. The synthesized complexes have exhibited catalytic activity for oxidation of benzyl alcohol to benzaldehyde and cyclohexanol to cyclohexanone in the presence of N-methyl morpholine N-oxide (NMO) as co-oxidant. They were also found to catalyze the transfer hydrogenation of aliphatic and aromatic ketones to alcohols in KOH/Isopropanol.
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Affiliation(s)
- R Manikandan
- Department of Chemistry, Periyar University, Salem, India
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Affiliation(s)
- M. Muthukumar
- a Department of Chemistry , Periyar University , Salem , India
| | | | - R. Karvembu
- b Department of Chemistry , National Institute of Technology , Tiruchirappalli , India
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Muthukumar M, Viswanathamurthi P, Prabhakaran R, Natarajan K. Ruthenium(III) chalconate complexes containing PPh3/AsPh3 and their use as catalysts. J COORD CHEM 2010. [DOI: 10.1080/00958972.2010.520707] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- M. Muthukumar
- a Department of Chemistry , Periyar University , Salem 636011, Tamil Nadu, India
| | - P. Viswanathamurthi
- a Department of Chemistry , Periyar University , Salem 636011, Tamil Nadu, India
| | - R. Prabhakaran
- b Department of Chemistry , Bharathiar University , Coimbatore 641046, Tamil Nadu, India
| | - K. Natarajan
- b Department of Chemistry , Bharathiar University , Coimbatore 641046, Tamil Nadu, India
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Gowri S, Priya J, Muthukumar M, Viswanathamurthi P. Synthesis, spectral, and catalytic studies of ruthenium(II) unsymmetrical Schiff-base complexes. J COORD CHEM 2010. [DOI: 10.1080/00958970802588257] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- S. Gowri
- a Department of Chemistry , Periyar University , Salem, India
| | - J. Priya
- a Department of Chemistry , Periyar University , Salem, India
| | - M. Muthukumar
- a Department of Chemistry , Periyar University , Salem, India
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Affiliation(s)
- M. Muthukumar
- a Department of Chemistry , Periyar University , Salem 636011, Tamil Nadu, India
| | - P. Viswanathamurthi
- a Department of Chemistry , Periyar University , Salem 636011, Tamil Nadu, India
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Gowri S, Muthukumar M, Krishnaraj S, Viswanathamurthi P, Prabhakaran R, Natarajan K. Ruthenium(II) unsymmetrical N2O2 tetradentate Schiff-base complexes: synthesis, characterization, and catalytic studies. J COORD CHEM 2010. [DOI: 10.1080/00958970903499651] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- S. Gowri
- a Department of Chemistry , Periyar University , Salem 636 011, Tamil Nadu, India
| | - M. Muthukumar
- a Department of Chemistry , Periyar University , Salem 636 011, Tamil Nadu, India
| | - S. Krishnaraj
- a Department of Chemistry , Periyar University , Salem 636 011, Tamil Nadu, India
| | - P. Viswanathamurthi
- a Department of Chemistry , Periyar University , Salem 636 011, Tamil Nadu, India
| | - R. Prabhakaran
- b Department of Chemistry , Bharathiar University , Coimbatore 641 046, Tamil Nadu, India
| | - K. Natarajan
- b Department of Chemistry , Bharathiar University , Coimbatore 641 046, Tamil Nadu, India
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Muthukumar M, Sivakumar S, Viswanathamurthi P, Karvembu R, Prabhakaran R, Natarajan K. Studies on ruthenium(III) chalcone thiosemicarbazone complexes as catalysts for carbon–carbon coupling. J COORD CHEM 2009. [DOI: 10.1080/00958970903373922] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- M. Muthukumar
- a Department of Chemistry , Periyar University , Salem 636 011, Tamil Nadu, India
| | - S. Sivakumar
- a Department of Chemistry , Periyar University , Salem 636 011, Tamil Nadu, India
| | - P. Viswanathamurthi
- a Department of Chemistry , Periyar University , Salem 636 011, Tamil Nadu, India
| | - R. Karvembu
- b Department of Chemistry , National Institute of Technology , Tiruchirappalli 620 015, Tamil Nadu, India
| | - R. Prabhakaran
- c Department of Chemistry , Bharathiar University , Coimbatore 641 046, Tamil Nadu, India
| | - K. Natarajan
- c Department of Chemistry , Bharathiar University , Coimbatore 641 046, Tamil Nadu, India
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Muthukumar M, Viswanathamurthi P. Ruthenium(II) chalconate complexes: Synthesis, characterization, catalytic, and biological studies. Spectrochim Acta A Mol Biomol Spectrosc 2009; 74:454-462. [PMID: 19616471 DOI: 10.1016/j.saa.2009.06.041] [Citation(s) in RCA: 13] [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] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Revised: 06/15/2009] [Accepted: 06/17/2009] [Indexed: 05/28/2023]
Abstract
A series of new hexa-coordinated ruthenium(II) carbonyl complexes of the type [RuCl(CO)(EPh(3))(B)(L)] (E = P or As; B = PPh(3), AsPh(3) or Py; L = 2'-hydroxychalcones) have been prepared by reacting [RuHCl(CO)(EPh(3))(2)(B)] (E = P or As; B = PPh(3), AsPh(3) or Py) with 2'-hydroxychalcones in benzene under reflux. The new complexes have been characterized by analytical and spectral (IR, electronic, (1)H, (31)P and (13)C NMR) data. Based on the above data, an octahedral structure has been assigned for all the complexes. The new complexes exhibit catalytic activity for the oxidation of primary and secondary alcohols into their corresponding aldehydes and ketones in the presence of N-methylmorpholine-N-oxide (NMO) as co-oxidant and also found efficient catalyst in the transfer hydrogenation of ketones. The antifungal properties of the complexes have also been examined and compared with standard Bavistin.
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Affiliation(s)
- M Muthukumar
- Department of Chemistry, Periyar University, Salem 636011, India
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Muthusamy G, Viswanathamurthi P, Muthukumar M, Natarajan K. Thiosemicarbazone Complexes of Ruthenium(II) and Rhodium(I) Containing Triphenylphosphine. PHOSPHORUS SULFUR 2009. [DOI: 10.1080/10426500802429781] [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: 10/20/2022]
Affiliation(s)
- G. Muthusamy
- a Department of Chemistry , Kongu Engineering College , Perundurai, India
| | | | - M. Muthukumar
- b Department of Chemistry , Periyar University , Salem, India
| | - K. Natarajan
- c Department of Chemistry , Bharathiar University , Coimbatore, India
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Muthukumar M, Viswanathamurthi P. Synthesis, characterization and catalytic studies of ruthenium(II) chalconate complexes. Appl Organomet Chem 2009. [DOI: 10.1002/aoc.1475] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [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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Muthukumar M, Viswanathamurthi P, Natarajan K. Synthesis and spectral characterization of 2'-hydroxy chalconate complexes of ruthenium(II) and their catalytic and biological applications. Spectrochim Acta A Mol Biomol Spectrosc 2008; 70:1222-1226. [PMID: 18068426 DOI: 10.1016/j.saa.2007.10.043] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2007] [Revised: 10/25/2007] [Accepted: 10/31/2007] [Indexed: 05/25/2023]
Abstract
The reactions of [RuHCl(CO)(B)(EPh3)2] (B=EPh3 or pyridine; E=P or As) and 2'-hydroxychalcones in 1:2 ratio led to the formation of [Ru(CO)(B)(L)2] (B=PPh3, AsPh3 or Py; L=2'-hydroxychalcones). The new complexes have been characterized by analytical and spectral (IR, electronic and 1H NMR) data. They have been assigned an octahedral structure. The new complexes were found to catalyze the oxidation of alcohols to aldehydes using N-methylmorpholine-N-oxide as co-oxidant. All the new complexes were found to be active against bacteria such as E. coli, Salmonella typhi and fungi Aspergillus niger. The activity was compared with standard Streptomycin or Bavistin.
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Affiliation(s)
- M Muthukumar
- Department of Chemistry, Periyar University, Salem 636011, India
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Affiliation(s)
- P. Viswanathamurthi
- a Department of Chemistry , Bharathiar University , Coimbatore, 641 046, India
| | - N. Dharmaraj
- a Department of Chemistry , Bharathiar University , Coimbatore, 641 046, India
| | - K. Natarajan
- a Department of Chemistry , Bharathiar University , Coimbatore, 641 046, India
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Saridha K, Karvembu R, Viswanathamurthi P, Yasodhai S. New Ruthenium(III) Complexes with Tridentate Schiff Base and Their Catalytic Activity toward Oxidation of Alcohols. ACTA ACUST UNITED AC 2007. [DOI: 10.1080/15533170500301952] [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] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- K. Saridha
- a Department of Chemistry (PG) , Kongunadu Arts and Science College (Autonomous) , Coimbatore, India
| | - R. Karvembu
- a Department of Chemistry (PG) , Kongunadu Arts and Science College (Autonomous) , Coimbatore, India
| | | | - S. Yasodhai
- a Department of Chemistry (PG) , Kongunadu Arts and Science College (Autonomous) , Coimbatore, India
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Viswanathamurthi P, Natarajan K. Ruthenium(II) Carbonyl Complexes Containing Tetradentate Schiff Bases and Their Catalytic Activities. ACTA ACUST UNITED AC 2007. [DOI: 10.1080/15533170600732619] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - K. Natarajan
- b Department of Chemistry , Bharathiar University , Coimbatore, India
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Dharmaraj N, Park H, Lee B, Viswanathamurthi P, Kim H, Lee D. Preparation and morphology of magnesium titanate nanofibres via electrospinning. INORG CHEM COMMUN 2004. [DOI: 10.1016/j.inoche.2003.12.033] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.7] [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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Viswanathamurthi P, Bhattarai N, Kim HY, Khil MS, Lee DR, Suh EK. GeO[sub 2] fibers: Preparation, morphology and photoluminescence property. J Chem Phys 2004; 121:441-5. [PMID: 15260565 DOI: 10.1063/1.1755666] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Nanomicron to submicron fibers of GeO(2) have been prepared using poly(vinyl acetate) and germanium dioxide sol by electrospinning followed by high temperature calcination. The morphology of the fibers have been studied by scanning electron microscopy, transmission electron microscopy, and atomic force microscopy. X-ray diffraction indicates that the fibers are single crystal with hexagonal alpha-phase quartz-like structure. At room temperature, the fibers show photoluminescence under excitation at 325 nm. The fibers may have potential applications in one-dimensional optoelectronic nanodevices.
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Affiliation(s)
- P Viswanathamurthi
- Department of Chemistry, Kongunadu Arts and Science College, Coimbatore 641 029, India
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Viswanathamurthi P, Bhattarai N, Kim H, Lee D, Kim S, Morris M. Preparation and morphology of niobium oxide fibres by electrospinning. Chem Phys Lett 2003. [DOI: 10.1016/s0009-2614(03)00702-4] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.0] [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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Viswanathamurthi P, Natarajan K. Synthesis and Characterisation of Ruthenium(III) Complexes Containing Triphenylphosphine/Arsine and Schiff Bases. ACTA ACUST UNITED AC 1998. [DOI: 10.1080/00945719809349367] [Citation(s) in RCA: 6] [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: 10/17/2022]
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