G.R. Ramkumaar

445 total citations
28 papers, 380 citations indexed

About

G.R. Ramkumaar is a scholar working on Electronic, Optical and Magnetic Materials, Organic Chemistry and Physical and Theoretical Chemistry. According to data from OpenAlex, G.R. Ramkumaar has authored 28 papers receiving a total of 380 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Electronic, Optical and Magnetic Materials, 18 papers in Organic Chemistry and 4 papers in Physical and Theoretical Chemistry. Recurrent topics in G.R. Ramkumaar's work include Nonlinear Optical Materials Research (22 papers), Free Radicals and Antioxidants (7 papers) and Structural and Chemical Analysis of Organic and Inorganic Compounds (7 papers). G.R. Ramkumaar is often cited by papers focused on Nonlinear Optical Materials Research (22 papers), Free Radicals and Antioxidants (7 papers) and Structural and Chemical Analysis of Organic and Inorganic Compounds (7 papers). G.R. Ramkumaar collaborates with scholars based in India and United States. G.R. Ramkumaar's co-authors include S. Gunasekaran, S. Srinivasan, E Sailatha, P. Govindasamy, Jitendra Kumar, S. Kumaresan, G. Anbalagan, S. Narasimha Bharathi, K.S. Nagaraja and Mannan Boopathi and has published in prestigious journals such as SHILAP Revista de lepidopterología, Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy and Journal of Molecular Structure.

In The Last Decade

G.R. Ramkumaar

28 papers receiving 369 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
G.R. Ramkumaar India 12 141 124 60 53 51 28 380
J.G. Ferreira Brazil 12 100 0.7× 77 0.6× 103 1.7× 62 1.2× 28 0.5× 19 403
Leda G. Bousiakou Greece 11 120 0.9× 114 0.9× 154 2.6× 83 1.6× 25 0.5× 22 452
Gökhan Dıkmen Türkiye 11 110 0.8× 113 0.9× 57 0.9× 69 1.3× 14 0.3× 51 382
Evgeniya A. Saverina Russia 12 225 1.6× 38 0.3× 91 1.5× 60 1.1× 30 0.6× 36 442
Ana Maria Percebom Brazil 13 185 1.3× 45 0.4× 144 2.4× 52 1.0× 27 0.5× 27 394
Zhanbin Qin China 13 185 1.3× 84 0.7× 162 2.7× 57 1.1× 27 0.5× 29 531
Getinet Tamiru Tigineh Ethiopia 9 142 1.0× 27 0.2× 136 2.3× 46 0.9× 57 1.1× 22 424
Ali Asghar Ebrahimi Valmoozi Iran 13 167 1.2× 69 0.6× 100 1.7× 20 0.4× 21 0.4× 41 389
Ivan Hameed R. Tomi Iraq 17 342 2.4× 175 1.4× 254 4.2× 20 0.4× 71 1.4× 38 604
Zhigang Tian China 9 151 1.1× 64 0.5× 69 1.1× 71 1.3× 30 0.6× 12 490

Countries citing papers authored by G.R. Ramkumaar

Since Specialization
Citations

This map shows the geographic impact of G.R. Ramkumaar's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by G.R. Ramkumaar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites G.R. Ramkumaar more than expected).

Fields of papers citing papers by G.R. Ramkumaar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by G.R. Ramkumaar. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by G.R. Ramkumaar. The network helps show where G.R. Ramkumaar may publish in the future.

Co-authorship network of co-authors of G.R. Ramkumaar

This figure shows the co-authorship network connecting the top 25 collaborators of G.R. Ramkumaar. A scholar is included among the top collaborators of G.R. Ramkumaar based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with G.R. Ramkumaar. G.R. Ramkumaar is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Thenmozhi, Arokiasamy Justin, et al.. (2023). Evaluation of Turnera subulata extract induced AgNPs for antimicrobial, antioxidant, cytotoxic, and anticancer properties against PANC-1. Biomass Conversion and Biorefinery. 14(23). 30485–30498. 3 indexed citations
2.
Boopathi, Mannan, et al.. (2015). Spectroscopic studies and molecular structure investigation on 2-chloro-4-(trifluoromethyl) pyridine: A combined experimentaland DFT analysis. Der pharma chemica. 7(9). 110–121. 3 indexed citations
3.
Gunasekaran, S., et al.. (2015). Molecular structure, spectroscopic characterization of (S)-2-Oxopyrrolidin-1-yl Butanamide and ab initio, DFT based quantum chemical calculations. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 149. 132–142. 7 indexed citations
4.
Sailatha, E, et al.. (2015). Molecular structure and spectroscopic characterization of Carbamazepine with experimental techniques and DFT quantum chemical calculations. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 141. 252–262. 13 indexed citations
5.
Ramkumaar, G.R., et al.. (2015). Ab initio and density functional theory calculations of molecular structure and vibrational spectra of 4-(2-Hydroxyethyl) piperazine-1-ethanesulfonic acid. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 152. 509–522. 12 indexed citations
6.
Gunasekaran, S., et al.. (2014). Vibrational, UV spectra, NBO, first order hyperpolarizability and HOMO–LUMO analysis of carvedilol. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 136. 567–578. 7 indexed citations
7.
Kumar, Jitendra, et al.. (2014). Quantum chemical studies on structural, vibrational, NBO and hyperpolarizability of N-(1,1-Dimethyl-2-hydroxyethyl)-3-amino-2-hydroxypropanesulfonic acid. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 136. 1500–1514. 2 indexed citations
8.
Gunasekaran, S., et al.. (2014). Vibrational spectroscopic studies of Isoleucine by quantum chemical calculations. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 124. 365–374. 9 indexed citations
9.
Gunasekaran, S., et al.. (2014). Quantum chemical density functional theory studies on the molecular structure and vibrational spectra of mannitol. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 137. 412–422. 8 indexed citations
10.
Gunasekaran, S., et al.. (2014). Computation and interpretation of vibrational spectra on the structure of Losartan using ab initio and Density Functional methods. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 132. 375–386. 10 indexed citations
11.
Kumar, Jitendra, et al.. (2014). DFT simulations and vibrational spectra of 2-amino-2-methyl-1,3-propanediol. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 133. 214–222. 11 indexed citations
12.
Govindasamy, P., S. Gunasekaran, & G.R. Ramkumaar. (2014). Natural bond orbital analysis, electronic structure and vibrational spectral analysis of N-(4-hydroxyl phenyl) acetamide: A density functional theory. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 130. 621–633. 16 indexed citations
13.
Anbalagan, G., et al.. (2013). Structural, optical, electron paramagnetic, thermal and dielectric characterization of chalcopyrite. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 122. 348–355. 8 indexed citations
14.
Gunasekaran, S., et al.. (2013). Density functional theory, restricted Hartree – Fock simulations and FTIR, FT-Raman and UV–Vis spectroscopic studies on lamotrigine. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 114. 277–283. 15 indexed citations
15.
Ramkumaar, G.R., et al.. (2013). Molecular structure, vibrational spectra, UV–vis, NBO, and NMR analyses on nevirapine using ab initio DFT methods. Journal of theoretical and applied physics. 7(1). 51–51. 8 indexed citations
16.
Ramkumaar, G.R., et al.. (2012). Molecular geometry, vibrational spectra, atomic charges, frontier molecular orbital and Fukui function analysis of antiviral drug zidovudine. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 99. 189–195. 12 indexed citations
17.
Ramkumaar, G.R., et al.. (2012). Vibrational Spectroscopic Studies of Tenofovir Using Density Functional Theory Method. SHILAP Revista de lepidopterología. 2013(1). 11 indexed citations
18.
Ramkumaar, G.R., et al.. (2012). Quantum chemical and experimental studies on polymorphism of antiviral drug Lamivudine. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 98. 265–270. 11 indexed citations
19.
Ramkumaar, G.R., et al.. (2009). Theoretical and experimental studies of vibrational spectra and thermal analysis of 2-nitroaniline and its cation. Journal of Molecular Modeling. 16(1). 87–94. 20 indexed citations
20.
Ramkumaar, G.R., et al.. (2008). FTIR and Thermal Studies on Nylon‐66 and 30% Glass Fibre Reinforced Nylon‐66. Journal of Chemistry. 6(1). 23–33. 112 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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