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Identity Details

Full Name

Dr. PACKIARAJ S

Professional Details

Department

Chemistry

Designation

Associate Professor

Qualification

B.Sc., M.Sc., M.Phil., Ph.D,.

Area of Expertise

Inorganic Chemistry & Solid-State Chemistry,,Materials Science & Nanomaterials,, ,Coordination Chemistry,,Crystallography & Structural Analysis,

Short Bio

Dr. S. Packiaraj is an accomplished researcher and academician in the field of Chemistry, with over 15 years of research experience and more than 9 years of dedicated teaching in engineering institutions. He completed his Ph.D. at Bharathiar University, where his research centered on the synthesis, structural characterization, and functional studies of guanidine-based ligands, lanthanide complexes, and advanced inorganic materials. His scientific contributions span inorganic chemistry, solid-state chemistry, materials science, and nanomaterials. He has an impressive publication record with more than 15 Scopus-indexed papers, including several in reputed SCI/WOS journals, alongside a strong citation profile. He has authored a textbook for engineering chemistry, contributed multiple book chapters, and holds a patent on biodegradable sanitary pads using water hyacinth fiber. He is also a recognized Ph.D. research supervisor (Ref. No. 2970059) under Anna University, mentoring research scholars in his areas of expertise. His core competencies include spectroscopy, thermal analysis, crystallography, and advanced materials research. He is an active reviewer for international journals published by Springer, Elsevier, and Wiley, reflecting his strong research credibility. Throughout his academic career, he has been recognized with awards including Best Research Publication, Best Teacher Award, Star Performer, and several NPTEL Topper and Mentor Certificates. He has served as Assistant Professor and Associate Professor at Sri Krishna College of Engineering and Technology and currently serves as Associate Professor at Kangeyam Institute of Technology. Beyond teaching, he has contributed significantly to institutional development through curriculum design, NPTEL coordination, NAAC-related activities, laboratory establishment, and R&D consultancy. Passionate about research, teaching, and scientific outreach, he continues to guide students, present research in national and international forums, and contribute to interdisciplinary chemical sciences.

Departmental Roles

Class Advisor,,Association Coordinator,,Discipline Committee Incharge,

Institutional Roles

NPTEL Coordinator (SPOC),,NBA Criteria 8 (8.2),

Journal Publications

1.    Preparation, thermal behavior, luminescent properties, and crystal structures of aminoguanidinium 2,n-pyridinedicarboxylate (n=3, 4, 5 and 6), S. Packiaraj, A. Pushpaveni, C. Senthil, S. Govindarajan and J. M. Rawson, J. Therm. Anal. Calorim, 2015, 119(1), 15–25. [WOS; Impact factor 4.40].

 

2.    Synthesis, Thermal Behaviour, XRD, and Luminescent Properties of Lighter Lanthanidethiodipropionate Hydrates Containing Aminogunidine as Neutral Ligand, S. Packiaraj, and S. Govindarajan, Open Journal of Inorganic Chemistry, 2014, 4, 41-49. [Impact factor 1.08].

 

3.   Structural and anti-oxidant properties of guanidinium pyrazole-3,5-dicarboxylates, S. Packiaraj, A. Pushpaveni, S. Govindarajan and J. M. Rawson, Cryst. Eng. Comm, 2016, 18(41), 7978–7993. [WOS; Impact factor 3.10].

 

4.   Isolation, spectroscopic and thermal properties of hydraziniumtris(oxydiacetato) lanthanate(III)hemi (pentahydrate) Crystal structure of the neodymium complex, P. Kanchana, S. Packiaraj, A. Pushpaveni and S. Govindarajan, J. Therm. Anal. Calorim, 2017, 129(1), 3-14. [WOS; Impact factor 4.40].

 

5.    Structural resemblance and variation in transition metal complexes derived from dipicolinic acid and guanylhydrazine, A. Pushpaveni, S. Packiaraj, S. Govindarajan, G.T. McCandless, C.F. Fronczek, F.R. Fronczek, Inorg. Chim. Acta., 2018, 471, 537-549. [WOS; Impact factor 2.80].

 

6.  Structural properties of ZnTe nano-thin films through thermally slow evaporation method, I. Pradeep, S. Packiaraj and M. Jeyaraj, International Journal of Pure and Applied Mathematics, 2018, 119(12), 2303-2311. [Scopus; Impact factor 0.29].

 

7.   Different coordination geometries of lighter lanthanates driven by symmetry of guanidines as charge compensators, S. Packiaraj, P. Kanchana, A. Pushpaveni, H. Puschmann and S. Govindarajan, New J. Chem., 2019, 43(2), 979-991. [WOS; Impact factor 3.30].

 

8.    Neutral and ion-pair silver(I) complexes of Schiff bases derived from methyl and ethyl carbazates with glyoxylic acid: Synthesis, structure, thermal behavior and cytotoxic activity, S. Poornima, S. Packiaraj, A. Pushpaveni, S. Govindarajan, R.J. Butcherd, J.P. Jasinski, Matthias Zeller, Inorg. Chim. Acta., 2019, 497, 119072-119084. [WOS; Impact factor 2.80].


9.     Simple and facile synthesis of pure nanocrystalline spinel cobaltite by thermal decomposition of solid solution precursors, S. Packiaraj, M. Jeyaraj, K. Chandarasekaran, J. M. Rawson and S. Govindarajan, J Mater Sci: Mater Electron. 2019, 30(20), 18866–18877. [WOS; Impact factor 2.80].

 

10.  New insight for the estimation of sulfur content from guanidinium tris(thiodipropionato)lanthanate(III) trihydrate: synthesis, thermal, and photoluminescent studies, S. Packiaraj, L. Kousalya, S. Poornima, A. Pushpaveni and S. Govindarajan, Monatshefte für Chemie. 2021, 152, 263–273. [WOS; Impact factor 1.80].

 

11.  Structural and antioxidant properties of guanylhydrazinium pyrazine-2-carboxylate, S. Packiaraj, L. Kousalya, A. Pushpaveni, S. Poornima, H. Puschmann and S. Govindarajan, J Mater Sci: Mater Electron. 2021, 32, 7704-7718. [WOS; Impact factor 2.80].


12.  Structural and multi-functional properties of novel thorium complex bearing higher analogue of guanidine base, A. Pushpaveni, S. Packiaraj, S. Poornima, L. Kousalya and S. Govindarajan, Mat. Chem. Phys. 2021, 275(1), 125213 [WOS; Impact factor 4.60].


13.  Synthetic Seed Production and Germplasm Conservation of Enicostema axillare (Lam.) raynal ssp. littoralis (Blume) raynal using Nodal and Root Explants, Kousalya L, Packiaraj S, Sankarlingam S and Ragunath C, Curr. Appl. Sci. Technol. 2022, 22(6), 1-12. [Scopus; Impact factor 0.94].


 14.  Structural and multi-functional properties of isoelectronic guanyl hydrazinium picolinic derivatives exhibit centric and non-centric space group, S. Packiaraj, N. Angamuthu, S. Poornima, A. Pushpaveni, L. Kousalya, J.M. Rawson and S. Govindarajan, Journal of Solid-State               Chemistry, 2023, 325, 124158. [WOS; Impact factor 3.30].


15. Pd-Co bimetallic nanoparticles modified α-FeOOH nanorod for the catalytic reduction of organic pollutants, K. Shanmugaraj, R.V. Mangalaraja, Velu Manikandan, C. H. Campos, S. Packiaraj, R. Aepuru, J. N. D. Leon, M. Sathish and K. S. Song, J. Environ. Chem. Eng, 2024, 12(3), 112942 [WOS; Impact factor 7.70].


16.  Chitosan (CTS) induced secondary metabolite production in Canscora decussata Schult. - An endangered medicinal plant, L. Kousalya, P. Seethapathy, D. Pandita, S. Packiaraj, S. Venkatesh, S. Sankaralingam, M. Arunkumar, B. Harinathan, A. Pandita, R. Casini, E. A. Mahmoud, I. M. Moussa, H. O. Elansary, Kuwait Journal of Science, 2025, 52(1), 100306. [WOS; Impact factor 1.20].


17.  Controlled synthesis of metal chelidamates using hydrazine as a pH regulator: Crystal structure, thermal stability, and photoluminescent properties, V. Yasodha, S. Packiaraj and S. Govindarajan, Journal of Molecular Structure, 2026, 1349(3), 143841. [WOS; Impact factor 4.7].

National / International Conferences

Ø  S. Packiaraj, S. Govindarajan, Synthesis, Structure and Thermal Reactivity of N2H6[(UO2)2(C2O4)3].2H2O, Paper presented in “National Conference on Recent Advances in Inorganic Chemistry” held at School of Chemistry, Bharathidasan University, Tiruchirappalli-620 023 during march 22-24th, 2012.

 

Ø  S. Packiaraj, S. Govindarajan, Comparative studies on Guanidinium & Aminoguanidinium Metal 3,5-pyrazoledicarboxylate hydrates, paper presented in “International Conference on Biological Inorganic Chemistry [ICBIC-2013]” held at Periyar University, Salem, during 20-22nd February 2013.

 

Ø  S. Packiaraj, S. Govindarajan, Oxydiacetate Complexes of Lighter Lanthanides with Hydrazinium cation-Crystal Structure of the Neodymium Complex, Paper presented in “National Conference on Recent Advances in Inorganic Chemistry (NSRAC)” held at Department of Chemistry, Pondicherry University, Puducherry-605 014 during March 22-23rd, 2013.

 

Ø  S. Packiaraj, S. Govindarajan, Simple salts of Pyridinedicarboxylic acids having Luminescent Properties-Crystal Structure of the Aminogunidinium Dipicolinate and Quinolinate, Paper presented in “National Conference on Advances Functional Materials (NCAFM)” held at Department of Physics, Bharathiar University, Coimbatore-641 046 during March 30th and 31st, 2014.

 

Ø  S. Packiaraj, S. Govindarajan, Monomeric, Dimeric and 1-D Polymeric Structure of Main Group Metal Chelidamate Hydrates, Paper presented in “International Conference” held at Department of Chemistry, PSGR Krishnammal College for women, Coimbatore, Tamilnadu, India, during 05-07th February 2014. 

 

Ø  S. Packiaraj, S. Govindarajan, Comparative studies on copper quinolinates containing guanidinium and aminoguanidinium as counter cations, Paper presented in “National Conference on Recent Advances in Chemical Sciences (RACS-2015)” held at Department of Chemistry, Gandhigram Rural Institute-Deemed University, Gandhigram-624 302 during March 5th and 6st, 2015.

 

Ø S. Packiaraj, S. Govindarajan, Monomeric complexes of water-soluble copper chelidamate hydrates containing guanidinium/aminoguanidinium as counter cation, Paper presented in “National Conference on Emerging Trends in Chemistry and Materials-2015 (ETCM-2015)” held at Department of Chemistry, Thiruvalluvar University, Vellore-632 115 during 9th and 10th April 2015.


Ø  S. Packiaraj, S. Govindarajan, Guanidinium mixed-metal pyrazole-3,5-dicarboxylate hydrates as solid solution precursors for the synthesis of nanocrystalline ferrites, Paper presented in International Conference on "Recent Advances in Materials and Chemical Sciences (ICRAMCS-2015)” held at Department of Chemistry, Gandhigram Rural Institute-Deemed University, Gandhigram-624 302 during December 14th and 15th, 2015.

 

Ø  S. Packiaraj, S. Govindarajan, Synthesis of pure and nano-crystalline spinel ferrites through solid solution precursor method, Paper presented in “National Conference on Recent Advances in the Applications of Macromolecular Materials (RAAMM -2017)” held at Department of Chemistry, Gandhigram Rural Institute-Deemed University, Gandhigram-624 302 during 2nd & 3rd March 2017.

 

Ø  S. Packiaraj, S. Govindarajan, Divalent metal complexes of quinolinic acid bearing guanidine as counter cation: Synthesis, Structural, Thermal and Luminescent Properties”, Paper presented in “2nd National Conference on Emerging Trends in Chemistry and Materials-2017 (ETCM-2017)” held at Department of Chemistry, Thiruvalluvar University, Vellore-632 115 during 10th and 11th August-2017.

 

Ø  S. Packiaraj, S. Govindarajan, Synthesis and structural characterization of divalent metal complexes with pyrazole-3,5-dicarboxylate as ligand”, Paper presented in National Seminar on “Innovations in Chemical Sciences and Green Technology” held at Department of Chemistry, PSGR Krishnammal College for women, Coimbatore, Tamilnadu, India, during 6th & 7th September-2018. 

 

Ø  S. Packiaraj, S. Govindarajan, Synthesis and crystal structure of [Co(Hqui)2(H2O)2] - a convenient route to prepare nanocrystalline spinel cobaltite, Paper presented in “National Conference on "Recent trends in Chemistry" (RTC-2019)” held at Department of Chemistry, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore-641 020 during February 1st and 2nd, 2019.

 

Ø  S. Packiaraj, S. Govindarajan, Solid solution precursor method for the preparation of pure nano cobaltites: Structure, Electrochemical and Magnetic Properties, Paper presented in “International Conference on Research Initiatives in Chemistry for Sustainable Development (RICS -2019)” held at Department of Chemistry, Gandhigram Rural Institute-Deemed University, Gandhigram-624 302 during March 18th and 19th, 2019.

 

Ø  S. Packiaraj, S. Govindarajan, A convenient route to prepare pure nanocrystalline spinel cobaltite by thermal decomposition method”, Paper presented in National Seminar on “New Perspectives in Chemical Sciences” held at Department of Chemistry, PSGR Krishnammal College for women, Coimbatore, Tamilnadu, India, during 16th & 17th September-2019. 

 

Ø  S. Packiaraj, S. Govindarajan, Hydrated lanthanide complexes of thiodipropionate using guanidine as counter ions, Paper presented in “International Conference on Research Impact of Innovations in Science and Technology for Societal Development-IISTSD-2019” held at Department of Chemistry, Kongunadu Arts and Science College, Coimbatore, Tamil Nadu, India, during 19-21st September-2019. 

 

Ø  S. Packiaraj, A. Pushpaveni and S. Poornima, Synthesis and Structural characterization of Cobalt Quinolinate complex – A convenient rout to prepare pure nanocrystalline spinel cobaltite, Paper presented in “National Conference on Scientific Input, Technological Advancement and Women Empowerment for Sustainable Development” Jointly Organized by  Department of Chemistry, Kongunadu Arts and Science College and Indian Science Congress Association-Coimbatore Chapter, Coimbatore, Tamil Nadu, India, during 2nd & 3rd February-2023. 

 

Ø  S. Packiaraj, A. Pushpaveni and S. Poornima, Complexation of Strontium with Chelidamic Acid: Crystal Structure, Thermal and Photoluminescent Properties, Paper presented in “International Conference on Socioeconomic Impacts of Pollution in the water Bodies and Remedial Measures (ICPWRM - 2023” Jointly Organized by Department of Chemistry, Kongunadu Arts and Science College and Indian Science Congress Association-Coimbatore Chapter, Coimbatore, Tamil Nadu, India, on December-2023.

 

Ø  S. Packiaraj, and S. Govindaraj, “Synthesis, Structural, Thermal and Photoluminescent Properties of Copper Thiophene-2,5-dicarboxylate hydrates”, Paper presented in “National Conference on Contemporary Research in Science, Engineering and Technology (NCCRSET - 2024” Organized by Department of Science and Humanities (Physics), Sri Krishna College of Engineering and Technology, Coimbatore-08, Tamil Nadu, India, on 25th March-2024.


FDPs / Seminars / Workshops Attended:


Ø  FDP on Emerging Trends in Material Science and Technology, Nandha College of Technology (Online), 23–27 Sep 2025.

Ø  FDP on Patent Drafting for Beginners, NPTEL–AICTE, Jan–Feb 2025 (4 Weeks).

Ø  FDP on Methods of Research and Publication Ethics, NITTTR Chandigarh, 17–21 Feb 2025.

Ø  FDP on Energy Technologies: Materials, Devices and Recycling, Dr. MCET, Pollachi, 13–15 Feb 2025.

Ø  FDP on Game-Changing Materials for High-Performance Energy and Healthcare Development, AICTE–ATAL, New Delhi, 03–08 Feb 2025.

Ø  FDP on Materials Characterization Techniques, NITTTR Chandigarh, 04–08 Dec 2023.

Ø  FDP on Co-ordination Chemistry, NPTEL–AICTE, Jan–Apr 2023 (12 Weeks).

Ø  FDP on Inculcating Universal Human Values in Technical Education, AICTE (Online), 19–23 Sep 2022.

Ø  FDP on Essential Industrial Chemistry for Engineers, NITTTR Chandigarh, 05–09 Sep 2022.

Ø  FDP on Nanosensors & Devices, NITTTR Chandigarh, 22–26 Aug 2022.

Ø  FDP on Nanomaterials and Their Characterization, NITTTR Chandigarh, 27 Sep – 01 Oct 2021.

Ø  FDP on Mechanisms in Organic Chemistry, NPTEL–AICTE, Sep–Nov 2021 (8 Weeks).

Ø  FDP on Nanomaterials and Devices, NITTTR Chandigarh, 27 Apr – 01 May 2020.

Ø  FDP on Quantum and Energy Materials: Potential & Applications, NITTTR Chandigarh, 18–22 May 2020.

Ø  Three-Day FDP on Advanced Molecular Structure, APCAC, Palani, 01–03 Jun 2020.

Ø  One-Week Online FDP on Effective and Instructive Research, Sona College of Technology, Salem, 04–10 May 2020.

Ø  FDP on Essential Chemistry for Engineers, NITTTR Chandigarh, 03–07 May 2021.

Ø  FDP on Novel Materials for Next Generations, AICTE–ATAL, New Delhi, 26–30 Jul 2021.

Ø  FDP on Novel Nanostructured Mg-Based Alloys for Industrial and Biomedical Applications, AICTE–ATAL, New Delhi, 30 Aug – 03 Sep 2021.

Ø  FDP on Nanoscience for Nanomaterials, AICTE–ATAL, New Delhi, 20–24 Sep 2021.

Ø  FDP on Spectroscopic Techniques & Instrumentation, NITTTR Chandigarh, 23–27 May 2022.

Ø  FDP on Introductory Organic Chemistry II, NPTEL–AICTE, Jul–Sep 2021 (8 Weeks).

Ø  One-Day Workshop on Spectroscopy Techniques, Immaculate College for Women, 30 Apr 2020.

Ø  National Seminar on Recent Research Trends in Chemistry, TGAC Rasipuram, 10 Feb 2017.

Ø  Science Academics Lecture Workshop, KASC Coimbatore, 21–22 Jul 2017.

Ø  One-Day Workshop on Hands-On Training on Electrochemical Techniques, Pondicherry University, 30 Nov 2018.

Ø  Two-Day Workshop on STEM Center of Excellence (Atlanta, USA), SKCET, 03–04 Apr 2018.

Ø  Two-Day Virtual Lecture Workshop on Recent Advances in Chemical Sciences, KASC Coimbatore, 23–24 Sep 2021.

Books / Book Chapter Published

1.       Book: S. Packiaraj, Chemistry for Engineers. New Delhi, India: Research India Publications (RIP), 2018, ISBN: 978-93-8737-71-3.


2.    Book Chapter: S. Packiaraj, “Multidisciplinary Approach to Chemical Research,” in Multidisciplinary Approach to Chemical Research. Coimbatore, India: Kongunadu Arts and Science College, 2023, ISBN: 978-93-5773-811-8.


3.  Book Chapter: S. Packiaraj, “Proceeding on Harnessing Biology for Sustainable Development,” in Proceeding on Harnessing Biology for Sustainable Development. Coimbatore, India: Nirmala College for Women, 2023, ISBN: 978-93-5777-124-5.


4.    Book Chapter: S. Packiaraj, “Proceeding on Contemporary Approaches in Sciences & Humanities: Future Prospects,” in Proceeding on Contemporary Approaches in Sciences & Humanities: Future Prospects. Coimbatore, India: Nirmala College for Women, 2023, ISBN: 978-81-9559-078-0.


5.    Book Chapter: S. Packiaraj, “Recent Research in Chemical Science,” in Recent Research in Chemical Science. Coimbatore, India: Kongunadu Arts and Science College, 2024, ISBN: 978-93-340-6042-3.

Patent

  1.   Packiaraj S, Kousalya L and Ashika G A, Patent entitled on “Production of Biodegradable Sanitary Pads using Water Hyacinth Fiber”, Intellectual Property, Govt. of India, Patent Published on 26th May-2023. Application No: 202341028454A, Publication Date: 26.05.2023.