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Dr. Yamuna R.

Dr. Yamuna R. currently serves as Associate Professor at the Department of Sciences (Chemistry), School of Engineering, Coimbatore. She has served as Principal Investigator for CSIR, DST, DRDO and MHRD Center projects.

Qualification: BSc, MSc, Ph.D
r_yamuna@cb.amrita.edu
Research Interest: Cobaloximes complexes, Designing of various medicinally important organic compounds, Functionalization of carbon nano materials with porphyrin and azo molecules for DSSC, Lead Acid Battery, Liquid Crystalline Material for Fuel Cell Applications, Nanomaterials, Non Linear Optical Material, Porphyrins,  Organometallic compounds for H2 Production

Bio

Dr. Yamuna R. currently serves as Associate Professor at the Department of Sciences (Chemistry), School of Engineering, Coimbatore.

She has served as Principal Investigator for CSIR, DST, DRDO and MHRD Centre projects. Her areas of research include Liquid Crystalline Material for Fuel Cell Applications, Nano Materials, Porphyrins, Lead Acid Battery, Non Linear Optical Material.

AFFILIATIONS

QUALIFICATIONS

YEAR DEGREE/PROGRAM INSTITUTION
1998-2005 Ph. D. in Chemistry
Thesis: Cobaloximes with Mixed Dioxime and Glyoxime as the Equatorial Ligands: Synthesis, Characterization, Cis-trans Influence and Crystal Structure Studies
Indian Institute of technology, Kanpur
June-December, 1998 Project Assistant Anna University Chennai, India.
1995-1997 M. Sc. (Applied Chemistry) Anna University, Chennai, India
1992-1995 B. Sc. (Chemistry) RVG Govt. Arts college, Chenglepet, India

CERTIFICATES, AWARDS, HONORS, AND SOCIETIES

  • 2012:Membership in Indian Society for Advancement of Materials and Process Engineering.
  • 2012: Received fast track young scientist project from DST, India.
  • 1999-2001: Institute fellowship, I.I.T. Kanpur.
  • 2002 – 2005: Senior Research Fellowship (SRF) of CSIR, New Delhi.

RESEARCH INTERESTS

My group’s primary research interest is in the design and synthesis of Liquid crystalline organocobaloximes with new or modified equatorial and axial ligands. Organocobaloximes, initially proposed as models of the Vit B12 coenzyme, have attracted the growing interest of scientists due to their potential applications as catalyst in organic synthesis and rich co-ordination chemistry with almost unlimited possibilities for substituents in the axial and equatorial position. Metallomesogens have fascinated much interest due to the capability of the metal ion to play either structural role or a functional role (i.e, imparting physical or chemical properties). Liquid crystalline cobaloximes are promising in view of their facile synthesis and low cost.

Cobaloxime complexes are among the best synthetic transition metal catalysts known for H2 production. They are relatively easy to synthesize and are oxygen tolerant. Cobaloximes can be readily coupled into natural and artificial photosynthetic systems. Recently, photo catalytic supramolecular assemblies containing a cobaloxime active site for solar cell and fuel cell applications have also been reported in the literature. Our interest here to synthesis and characterize new organometallic compounds for H2 production.

X-ray crystallography is useful in identifying known materials, characterizing new materials and in perceptive materials that appear similar by other experiments. X-ray crystallography is widely used in biological research. Conformation of biomolecules plays a major role in the design of new drugs. The crystal structures of various organic compounds determined in the present study own medicinal, biological and pharmaceutical importance.

Porphyrin-based functional photonic materials have been the cornerstone of research because of their structural rigidity, thermal stability, photochemical, and electrochemical properties. Linking porphyrins to material systems can improve the photochemical and redox properties of the systems. To facilitate the absorptivity of photo absorbers in case of photochemical devices nano materials are functionalized with chromophores such as azo benzene. Porphyrin functionalized carbon nanomaterial shows high third order non-linear optical properties. 

VRLA battery has been developed into a versatile and extremely reliable energy-storage device. The most commonly used gelling agent, fumed silica, has many disadvantages such as, contamination of the local working environment, particularly during paste-mixing, and occupational hygiene and handling problems. It is also bulky to transport and has long gel times unless used at very high concentrations. Therefore, there is an increasing demand for an alternative gelling agent for sulfuric acid in the production of gelled-electrolyte (GEL) VRLA batteries. It is expected that gel batteries with tubular positive plates can display excellent performance.

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COURSES

CODE SUBJECT
CHY 100 Chemistry
SS 801 Advanced Organic Chemistry
SS 805 Organometallic and Bioinorganic Chemistry
SS 802 Advanced electrochemistry
CHY254 Polymer for Electronics
CHY211 Inorganic Chemistry
Publications

Journal Article

Year : 2020

Encapsulation of N-phenyl p-phenylenediamine into β-CD: Spectral, molecular modelling studies and sensor application for detecting Fe2+ ion

Authors : Dr. Yamuna R., D. Prema; S. Thamaraiselvi.

Publisher : Journal of Molecular Liquids

D. Prema, Thamaraiselvi, S., and Dr. Yamuna R., “Encapsulation of N-phenyl p-phenylenediamine into β-CD: Spectral, molecular modelling studies and sensor application for detecting Fe2+ ion”, Journal of Molecular Liquids, vol. 319, p. 113990, 2020.

Year : 2019

Covalent Functionalization and Characterization of Single-walled Carbon Nanotubes with Cu (II) Complexes of Meso-tetra(4-Aminophenyl)porphyrin

Authors : Dr. Yamuna R., Vyshnavi T Veetil; G Prabhavathi.

Publisher : IOP Conference Series: Materials Science and Engineering

V. T. Veetil, Prabhavathi, G., and Dr. Yamuna R., “Covalent Functionalization and Characterization of Single-walled Carbon Nanotubes with Cu (II) Complexes of Meso-tetra(4-Aminophenyl)porphyrin”, IOP Conference Series: Materials Science and Engineering, vol. 577, p. 012091, 2019.

Year : 2018

Synthesis, Characterization and Liquid Crystalline Properties of 1,3-bis(4-pyridyl)propane connected Long Alkyl Chain Dicobaloxime

Authors : Dr. Yamuna R., S. Sarath;

Publisher : Materials Today: Proceedings

S. Sarath and Dr. Yamuna R., “Synthesis, Characterization and Liquid Crystalline Properties of 1,3-bis(4-pyridyl)propane connected Long Alkyl Chain Dicobaloxime”, Materials Today: Proceedings, vol. 5. pp. 16748-16755, 2018.

Year : 2018

Covalent functionalization and solubilization of multi-walled carbon nanotubes by using zinc and copper complexes of meso-tetra(4-aminophenyl) porphyrin

Authors : Dr. Yamuna R., G. Prabhavathi; Dr. Yamuna R.; Alifia C. Jafer

Publisher : Journal of Organometallic Chemistry

G. Prabhavathi, Dr. Yamuna R., and Jafer, A. C., “Covalent functionalization and solubilization of multi-walled carbon nanotubes by using zinc and copper complexes of meso-tetra(4-aminophenyl) porphyrin”, Journal of Organometallic Chemistry, vol. 861, pp. 219-229, 2018.

Year : 2018

Covalent functionalization and characterization of multi-walled carbon nanotubes using 5, 10, 15, 20-tetra(4-aminophenyl)porphyrinatonickel(II)

Authors : Dr. Yamuna R., Alifia C. Jafer; Vyshnavi T. Veetil; G. Prabhavathi.

Publisher : Fullerenes Nanotubes and Carbon Nanostructures

A. C. Jafer, Veetil, V. T., Prabhavathi, G., and Dr. Yamuna R., “Covalent functionalization and characterization of multi-walled carbon nanotubes using 5, 10, 15, 20-tetra(4-aminophenyl)porphyrinatonickel(II)”, Fullerenes, Nanotubes and Carbon Nanostructures, vol. 26, pp. 739-745, 2018.

Year : 2017

Synthesis, Characterization and Photoluminescence Properties of Tetra-amino Phenylporphyrin Covalently Linked to Multi-Walled Carbon Nanotubes

Authors : Dr. Yamuna R., PRABHAVATHI, G.; Arjun, M.;

Publisher : Journal of Chemical Sciences, Springer India,

G. PRABHAVATHI, Arjun, M., and Dr. Yamuna R., “Synthesis, Characterization and Photoluminescence Properties of Tetra-amino Phenylporphyrin Covalently Linked to Multi-Walled Carbon Nanotubes”, Journal of Chemical Sciences, vol. 129, pp. 699-706, 2017.

Year : 2016

Synthesis, characterization and thermal studies of 1,3-bis(4-pyridyl)propane bridged dicobaloximes

Authors : Dr. Yamuna R., Sarath, S.; Kubandiran, K.; Umadevi, M.; Chakkaravarthi, G.

Publisher : Journal of Organometallic Chemistry

Dr. Yamuna R., Sarath, S., Kubandiran, K., Umadevi, M., and Chakkaravarthi, G., “Synthesis, characterization and thermal studies of 1,3-bis(4-pyridyl)propane bridged dicobaloximes”, Journal of Organometallic Chemistry, vol. 811, pp. 40-47, 2016.

Year : 2015

Crystal structure of [2-methyl-1-(phenylsulfonyl)-1H-indol-3-yl](phenyl) methanone

Authors : Dr. Yamuna R., Umadevi, M; Saravanan, V; Mohanakrishnan, AK; Chakkaravarthi, G

Publisher : Acta Crystallographica Section E: Crystallographic Communications

M. Umadevi, Saravanan, V., Dr. Yamuna R., Mohanakrishnan, A. K., and Chakkaravarthi, G., “Crystal structure of [2-methyl-1-(phenylsulfonyl)-1H-indol-3-yl](phenyl) methanone”, Acta Crystallographica Section E: Crystallographic Communications, vol. 71, pp. 133–135, 2015.

Year : 2015

Crystal structure of (E)-diethyl 2-[(1-phenylsulfonyl-1H-indol-3-yl)methylidene]succinate

Authors : Dr. Yamuna R., Umadevi, M.; Raju, P.; Mohanakrishnan, A.K.; Chakkaravarthi, G.

Publisher : Acta Crystallographica Section E: Crystallographic Communications

M. Umadevi, Raju, P., Dr. Yamuna R., Mohanakrishnan, A. K., and Chakkaravarthi, G., “Crystal structure of (E)-diethyl 2-[(1-phenylsulfonyl-1H-indol-3-yl)methylidene]succinate”, Acta Crystallographica Section E: Crystallographic Communications, vol. 71, pp. o1029-o1030, 2015.

Year : 2015

Crystal structure of N-[3-bromo-1-(phenylsulfonyl)-1H-indol-2-yl]methylbenzenesulfonamide

Authors : Dr. Yamuna R., Umadevi M.; Raju P.;Mohanakrishnan A.K.; Chakkaravarthi G.

Publisher : Acta Crystallographica Section E: Crystallographic Communications

U. M., P., R., Dr. Yamuna R., A.K., M., and G., C., “Crystal structure of N-[3-bromo-1-(phenylsulfonyl)-1H-indol-2-yl]methylbenzenesulfonamide”, Acta Crystallographica Section E: Crystallographic Communications, vol. 71, pp. o756-o757, 2015.

Year : 2015

Crystal structure of (2-bromomethyl-1-phenylsulfonyl-1H-indol-3-yl)(phenyl) methanone

Authors : Dr. Yamuna R., Umadevi, M; Saravanan, V; Mohanakrishnan, AK; Chakkaravarthi, G

Publisher : Acta Crystallographica Section E: Crystallographic Communications

M. Umadevi, Saravanan, V., Dr. Yamuna R., Mohanakrishnan, A. K., and Chakkaravarthi, G., “Crystal structure of (2-bromomethyl-1-phenylsulfonyl-1H-indol-3-yl)(phenyl) methanone”, Acta Crystallographica Section E: Crystallographic Communications, vol. 71, pp. o86–o87, 2015.

Year : 2015

Crystal structure of 3-(2-nitrophenyl)-1-(1-phenylsulfonyl-1H-indol-3-yl)propan-1-one

Authors : Dr. Yamuna R., Umadevi M.; Raju P.; Mohanakrishnan A.K.; Chakkaravarthi G.

Publisher : Acta Crystallographica Section E: Crystallographic Communications

U. M., P., R., Dr. Yamuna R., A.K., M., and G., C., “Crystal structure of 3-(2-nitrophenyl)-1-(1-phenylsulfonyl-1H-indol-3-yl)propan-1-one”, Acta Crystallographica Section E: Crystallographic Communications, vol. 71, pp. o892-o893, 2015.

Year : 2015

Crystal structure of (E)-2-(4-methoxystyryl)-3-methyl-1-phenylsulfonyl-1H-indole

Authors : Dr. Yamuna R., Umadevi M.; Raju P.; Mohanakrishnan A.K.; Chakkaravarthi G.

Publisher : Acta Crystallographica Section E: Crystallographic Communications

U. M., P., R., Dr. Yamuna R., A.K., M., and G., C., “Crystal structure of (E)-2-(4-methoxystyryl)-3-methyl-1-phenylsulfonyl-1H-indole”, Acta Crystallographica Section E: Crystallographic Communications, vol. 71, pp. o723-o724, 2015.

Year : 2015

Crystal structure of ethyl 2-phenyl-9-phenylsulfonyl-9H-carbazole-3-carboxylate

Authors : Dr. Yamuna R., G Chakkaravarthi; AK Mohanakrishnan; P Raju; M Umadevi

Publisher : Acta Crystallographica Section E: Crystallographic Communications

Dr. Yamuna R., Chakkaravarthi, G., Mohanakrishnan, A. K., Raju, P., and Umadevi, M., “Crystal structure of ethyl 2-phenyl-9-phenylsulfonyl-9H-carbazole-3-carboxylate”, Acta Crystallographica Section E: Crystallographic Communications, vol. 71, no. 10, pp. o725-o726, 2015.

Year : 2015

Crystal structure of 2-[2-phenyl-1-(phenylsulfonyl)ethyl]-1-phenylsulfonyl-1H-indole

Authors : Dr. Yamuna R., Umadevi, M.a b; Raju, P.c; ;Mohanakrishnan, A.K.c; Chakkaravarthi, G.e

Publisher : Acta Crystallographica Section E: Crystallographic Communications

Mab Umadevi, Raju, Pc, Dr. Yamuna R., Mohanakrishnan, A. Kc, and Chakkaravarthi, Ge, “Crystal structure of 2-[2-phenyl-1-(phenylsulfonyl)ethyl]-1-phenylsulfonyl-1H-indole”, Acta Crystallographica Section E: Crystallographic Communications, vol. 71, pp. o910-o911, 2015.

Year : 2014

Crystal structure of 2-(2,4-di\-chloro\-phen\-yl)-4-hydroxy-9-phenyl\-sulfonyl-9\it H-carbazole-3-carbaldehyde

Authors : Dr. Yamuna R., Umadevi, M.; Ramalingam, B. M.; Mohanakrishnan, A. K.; Chakkaravarthi, G.

Publisher : Acta Crystallographica Section Ehttps://doi.org/10.1107/S1600536814024064

M. Umadevi, Ramalingam, B. M., Dr. Yamuna R., Mohanakrishnan, A. K., and Chakkaravarthi, G., “Crystal structure of 2-(2,4-di\-chloro\-phen\-yl)-4-hydroxy-9-phenyl\-sulfonyl-9\it H-carbazole-3-carbaldehyde”, Acta Crystallographica Section E, vol. 70, pp. 466–468, 2014.

Year : 2014

Azo Functionalized Graphene Oxide: Synthesis Characterization and Photoluminescence Property

Authors : Dr. Yamuna R., Devi, R., Prabhavathy, G., Ramakrishnan, S., and NIKHIL K. KOTHURKAR

Publisher : Journal of chemical science

Year : 2014

Synthesis, characterization and photoluminescence properties of graphene oxide functionalized with azo molecules

Authors : Dr. Yamuna R., Dr. Nikhil K. Kothurkar, DEVI, R.; PRABHAVATHI, G.; Ramakrishnan, S.; NIKHIL K. KOTHURKAR

Publisher : Journal of Chemical Sciences

R. DEVI, PRABHAVATHI, G., Dr. Yamuna R., Ramakrishnan, S., and NIKHIL K. KOTHURKAR, “Synthesis, characterization and photoluminescence properties of graphene oxide functionalized with azo molecules”, Journal of Chemical Sciences, vol. 126, pp. 75–83, 2014.

Year : 2013

1-(2-Bromomethyl-1-phenylsulfonyl-1H-indol-3-yl) propan-1-one

Authors : Dr. Yamuna R., M. Umadevi, Saravanan, V., Mohanakrishnan, A. K., and Chakkaravarthi, G

Publisher : Acta Crystallographica Section E: Structure Reports Online

Year : 2013

(Z)-3-(1-Chloroprop-1-enyl)-2-methyl-1-phenylsulfonyl-1H-indole

Authors : Dr. Yamuna R., M Umadevi; V Saravanan; Dr. Yamuna R.; AK Mohanakrishnan; G Chakkaravarthi

Publisher : Acta Crystallographica Section E: Structure Reports Online

M. Umadevi, Saravanan, V., Dr. Yamuna R., Mohanakrishnan, A. K., and Chakkaravarthi, G., “(Z)-3-(1-Chloroprop-1-enyl)-2-methyl-1-phenylsulfonyl-1H-indole”, Acta Crystallographica Section E: Structure Reports Online, vol. 69, no. 12, pp. o1781-o1781, 2013.

Year : 2013

Synthesis, characterization, and nonlinear optical properties of graphene oxide functionalized with tetra-amino porphyrin

Authors : Dr. Yamuna R., Dr. Nikhil K. Kothurkar, Ramakrishnan, S.b; Keerthy Dhara; Devi, R.a; Kothurkar, N.K.b; Kirubha, E.c; Palanisamy, P.K.c

Publisher : Journal of Nanoparticle Research

Dr. Yamuna R., Ramakrishnan, Sb, Keerthy Dhara, Devi, Ra, Kothurkar, N. Kb, Kirubha, Ec, and Palanisamy, P. Kc, “Synthesis, characterization, and nonlinear optical properties of graphene oxide functionalized with tetra-amino porphyrin”, Journal of Nanoparticle Research, vol. 15, 2013.

Year : 2013

(E)-1-[2-(4-Chloro-2-nitrostyryl)-1-phenylsulfonyl-1H-indol-3-yl] propan-1-one

Authors : Dr. Yamuna R., Umadevi, M.a; Saravanan, V.b; Dr. Yamuna R.; Mohanakrishnan, A.K.b; Chakkaravarthi, G.d

Publisher : Acta Crystallographica Section E: Structure Reports Online

Ma Umadevi, Saravanan, Vb, Dr. Yamuna R., Mohanakrishnan, A. Kb, and Chakkaravarthi, Gd, “(E)-1-[2-(4-Chloro-2-nitrostyryl)-1-phenylsulfonyl-1H-indol-3-yl] propan-1-one”, Acta Crystallographica Section E: Structure Reports Online, vol. 69, p. o1784, 2013.

Year : 2013

(E)-1-[2-(4-Fluoro-2-nitrostyryl)-1-phenylsulfonyl-1H-indol-3-yl] propan-1-one

Authors : Dr. Yamuna R., Umadevi, M; Saravanan, V; Dr. Yamuna R.; Mohanakrishnan, AK; Chakkaravarthi, G

Publisher : Acta Crystallographica Section E: Structure Reports Online

M. Umadevi, Saravanan, V., Dr. Yamuna R., Mohanakrishnan, A. K., and Chakkaravarthi, G., “(E)-1-[2-(4-Fluoro-2-nitrostyryl)-1-phenylsulfonyl-1H-indol-3-yl] propan-1-one”, Acta Crystallographica Section E: Structure Reports Online, vol. 69, pp. 1780–1780, 2013.

Year : 2010

biological

Authors : Dr. Yamuna R., M Umadevi,; G Chakkaravarthid; AK Mohanakrishnanb,; V Saravanan

Publisher : Chakkaravarthi

Dr. Yamuna R., ,, Chakkaravarthid, G., ,, and Saravanan, V., “biological ”, Chakkaravarthi et al.(2008, 2010)., 2010.


Year : 2006

Cobaloximes with mixed dioximes of glyoxime and diphenylglyoxime: synthesis, characterization, CV, X-ray studies, and crystal packing

Authors : Dr. Yamuna R., Gupta, BD; Mandal, Debaprasad

Publisher : Organometallics

B. D. Gupta, Dr. Yamuna R., and Mandal, D., “Cobaloximes with mixed dioximes of glyoxime and diphenylglyoxime: synthesis, characterization, CV, X-ray studies, and crystal packing”, Organometallics, vol. 25, pp. 706–714, 2006.

Year : 2003

Synthesis and characterization of and cis-trans influence in cobaloximes with glyoxime as the equatorial ligand

Authors : Dr. Yamuna R., Gupta, BD; Dr. Yamuna R.; Singh, Veena; Tiwari, Usha

Publisher : ACS Publications

B. D. Gupta, Dr. Yamuna R., Singh, V., and Tiwari, U., “Synthesis and characterization of and cis-trans influence in cobaloximes with glyoxime as the equatorial ligand”, Organometallics, vol. 22, pp. 226–232, 2003.

Year : 2003

Organocobaloximes with mixed dioxime equatorial ligands: A convenient one-pot synthesis. X-ray structures and cis-trans influence studies

Authors : Dr. Yamuna R., Gupta, BD; Singh, Veena;Barclay, T; Cordes, W

Publisher : ACS Publications

B. D. Gupta, Singh, V., Dr. Yamuna R., Barclay, T., and Cordes, W., “Organocobaloximes with mixed dioxime equatorial ligands: A convenient one-pot synthesis. X-ray structures and cis-trans influence studies”, Organometallics, vol. 22, pp. 2670–2678, 2003.

Year : 2001

Organocobaloximes with mixed dioxime equatorial ligands: a convenient one-pot synthesis. X-ray crystal structures of BnCo III (dmgH)(dpgH) Py and BnCO III (chgH)(dpgH) py

Authors : Dr. Yamuna R., Gupta, BD; Singh, Veena; Tiwari, Usha; Barclay, T; Cordes, W

Publisher : Elsevier

B. D. Gupta, Dr. Yamuna R., Singh, V., Tiwari, U., Barclay, T., and Cordes, W., “Organocobaloximes with mixed dioxime equatorial ligands: a convenient one-pot synthesis. X-ray crystal structures of BnCo III (dmgH)(dpgH) Py and BnCO III (chgH)(dpgH) py”, Journal of Organometallic Chemistry, vol. 627, pp. 80–92, 2001.

Year : 2001

Homolytic displacements at carbon in organocobaloximes: Reactions of organocobaloximes with free radical precursor with two radical centres

Authors : Dr. Yamuna R., Gupta, B.; Oberoi, M.; Mandal, Debaprasad; Tiwari, U.;Vijaikanth, Vijendran; Singh, V.

Publisher : Indian Journal of Chemistry

B. Gupta, Oberoi, M., Mandal, D., Tiwari, U., Dr. Yamuna R., Vijaikanth, V., and Singh, V., “Homolytic displacements at carbon in organocobaloximes: Reactions of organocobaloximes with free radical precursor with two radical centres”, Indian Journal of Chemistry Section a-Inorganic Bio-Inorganic Physical Theoretical & Analytical Chemistry, vol. 40, pp. 986-988, 2001.

Year : 2000

Synthesis, characterization and cis-trans influence in cobaloximes with nioxime

Authors : Dr. Yamuna R., B.D. Gupta; Kushal Qanungo; Ashutosh Pandey; Usha Tewari; V. Vijaikanth; Veena Singh; T. Barclay; W. Cordes

Publisher : Journal of Organometallic Chemistry

B. D. Gupta, Qanungo, K., Dr. Yamuna R., Pandey, A., Tewari, U., Vijaikanth, V., Singh, V., Barclay, T., and Cordes, W., “Synthesis, characterization and cis-trans influence in cobaloximes with nioxime”, Journal of Organometallic Chemistry, vol. 608, pp. 106 - 114, 2000.

Year : 2000

Organocobaloximes with mixed-dioxime equatorial ligands: a one-pot synthesis

Authors : Dr. Yamuna R., B.D. Gupta; V. Singh; K. Qanungo; V. Vijaikanth; T. Barclay; W. Cordes

Publisher : Journal of Organometallic Chemistry

B. D. Gupta, Singh, V., Qanungo, K., Vijaikanth, V., Dr. Yamuna R., Barclay, T., and Cordes, W., “Organocobaloximes with mixed-dioxime equatorial ligands: a one-pot synthesis”, Journal of Organometallic Chemistry, vol. 602, no. 1-2, pp. 1 - 4, 2000.

Conference Paper

Year : 2014

A Comparative study of porphyrin functionalized carbon nano materials

Authors : Dr. Yamuna R., Dr. Yamuna R., Ramakrishnan, S., Prabhavathi, G., and NIKHIL K. KOTHURKAR

Publisher : 1st International symposium on Nanoparticle/Nanomaterial and Applications (ISN2A)

Year : 2011

Azo functionalized graphene oxide: synthesis and characterization

Authors : Dr. Yamuna R., R. Devi, Ramakrishnan, S., Keerthy Dhara, NIKHIL K. KOTHURKAR

Publisher : ICANN- 2011

R. Devi, Ramakrishnan, S., Keerthy Dhara, NIKHIL K. KOTHURKAR, and Dr. Yamuna R., “Azo functionalized graphene oxide: synthesis and characterization”, in 2nd International Conference on Advanced Nanomaterials and Nanotechnology (ICANN- 2011) , Guwahati, 2011.

Year : 2009

Synthesis, characterization and antimicrobial activity of cobalt(II) complexes of various alkyl substituted 2,6-Diphenyl-1-aza-7-oxa-4-spiro[2,5] octanes

Authors : Dr. Yamuna R., S. Asha

Publisher : Bharathiyar university

S. Asha and Dr. Yamuna R., “Synthesis, characterization and antimicrobial activity of cobalt(II) complexes of various alkyl substituted 2,6-Diphenyl-1-aza-7-oxa-4-spiro[2,5] octanes”, in International Conference on Coordination & Organometallic Chemistry (ICCOC-2009), Bharathiyar university, 2009.

Year : 2008

Crystal engineering in cobaloximes: Lamellar, pillared, tubular and helical assemblies assisted by C-H…O, C-H…Cl and C-H…pi interactions

Authors : Dr. Yamuna R.

Publisher : International symposium on Structural bioinformatics: Structure and functions of macromolecules (BIOFEST-08)

Year : 2004

Synthesis, Characterization and Oxygen Insertion Studies in Cobaloximes with Mesityl Glyoxime as Equatorial Ligand: X-ray Crystal Structure

Authors : Dr. Yamuna R., B. D. Gupta, Mandal, D., and Dr. Yamuna R.

Publisher : I.I.T Kanpur

B. D. Gupta, Mandal, D., and Dr. Yamuna R., “Synthesis, Characterization and Oxygen Insertion Studies in Cobaloximes with Mesityl Glyoxime as Equatorial Ligand: X-ray Crystal Structure”, in 6th National Symposium in Chemistry, I.I.T Kanpur, 2004.

Year : 2004

Synthesis, Characterization and Oxygen Insertion of Cobaloximes with Glyoxime Equatorial Ligand: Novel Helical Supramolecular Structure Assisted by C-H..O Interactions

Authors : Dr. Yamuna R., B. D. Gupta

Publisher : I.I.T Kanpur

B. D. Gupta and Dr. Yamuna R., “Synthesis, Characterization and Oxygen Insertion of Cobaloximes with Glyoxime Equatorial Ligand: Novel Helical Supramolecular Structure Assisted by C-H.O Interactions”, in 6th National Symposium in Chemistry, I.I.T Kanpur, 2004.

Year : 2003

Cobaloximes with Mixed Dioxime Equatorial Ligand: Synthesis, characterization and X-ray studies

Authors : Dr. Yamuna R., B. D. Gupta

Publisher : CLRI, Chennai

B. D. Gupta and Dr. Yamuna R., “Cobaloximes with Mixed Dioxime Equatorial Ligand: Synthesis, characterization and X-ray studies ”, in 5th National Symposium in Chemistry, Chennai, 2003.

Year : 2001

Alkylcobaloximes with Mixed Dioxime Equatorial Ligands: A Convenient One Pot Synthesis

Authors : Dr. Yamuna R., B. D. Gupta, Singh, V., Dr. Yamuna R., and Tewari, U

Publisher : Panjab University

B. D. Gupta, Singh, V., Dr. Yamuna R., and Tewari, U., “Alkylcobaloximes with Mixed Dioxime Equatorial Ligands: A Convenient One Pot Synthesis ”, in 3rd National Symposium in Chemistry, Panjab University, 2001.

Conference Proceedings

Year : 2011

Synthesis and Characterization of 5,10,15,20 meso tetra (4-aminophenyl) porphyrin-functionalized graphene oxide

Authors : Dr. Yamuna R., Keerthy Dhara, Ramakrishnan, S., Devi, R., NIKHIL K. KOTHURKAR, and Dr. Yamuna R.

Publisher : ICANN-2011

Keerthy Dhara, Ramakrishnan, S., Devi, R., NIKHIL K. KOTHURKAR, and Dr. Yamuna R., “Synthesis and Characterization of 5,10,15,20 meso tetra (4-aminophenyl) porphyrin-functionalized graphene oxide”, in 2nd International Conference on Advanced Nanomaterials and Nanotechnology(ICANN-2011), Guwahati, 2011.

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