CSIR-Central Leather Research Institute
Dr.S. Easwaramoorthi
Principal Scientist
Academic Qualifications
    Ph.D University of Madras (2005)
Contact Details
Dr.S. Easwaramoorthi
Principal Scientist
Honorary Faculty - Anna University & Assistant Professor - AcSIR
Inorganic & Physical Chemistry
CSIR-Central Leather Research Institute
Adyar, Chennai – 600 020
e-mail: moorthi@clri.res.in,
Phone:91 44 24437137

Title of the Ph.D thesis

Studies on the photochemistry, photophysics and electrochemistry of phenzaine and thiazine dyes and titanium dioxide semiconductors in microporous host materials   
Under the guidance of Professor P. Natarajan, University of Madras

Research Areas

  • Self - assembled hybrid nanostructures for photocatalysis and solar cell applications
  • Photophysical and Photophycial studies of new chromophores with multiple donor acceptor groups for biological applications
  • Fluorescent sensors for Chromium, Lead and Fluoride ions


  Assistant Professor (Senior), School of Advanced Sciences, VIT University, Vellore (June 2010- May 2011)

Research Profile

  Google Scholar
  Researcher ID
Funded Projects
Metal free organic dyes with multiple donor-acceptor groups for dye sensitized solar cells. Department of Science and Technology, 27 Lakhs, 2012-2015
Multipolar Molecules and their applications, Funded by Science and Engineering Research Board, SERB, 2018-2021, 40 Lakhs
Centre for Sustainable Treatment, Reuse and Management for Efficient, Affordable and Synergistic Solutions for Water (WATER-IC for SUTRAM of EASY WATER, in collaboration with IIT Madras), DST, 45 Lakhs (Co-PI), 2018-2023
1 A Novel Polycyclic Dihydropyrimidine-Dione Compound for Industrial Application and a Process for the Preparation Thereof Indian Patent Application 0251NF2014, 2014
47 Nagarajan, S.; Easwaramoorthi, S.; Rao, J. R.; Thanikaivelan, P.,
Probing visible light induced photochemical stabilization of collagen in green solvent medium.
International Journal of Biological Macromolecules, 2019, 131, 779-786.
46 Niraikulam, A.; P, S. L.; Meganathan, I.; Raghavan, S.; Ramudu, K. N.; Easwaramoorthi, S.; Shanmugam, G.,
Engineering of Skin Fibre Opening enzyme for Sulphide-free Leather Beam House Operation through Xenobiology.
Green Chemistry, 2019, DOI: 10.1039/C8GC03479F.
45 Augustine, G.; Raghavan, s. S.; NumbiRamudu, K.; Easwaramoorthi, S.; Shanmugam, G.; Seetharani Murugaiyan, J.; Gunasekaran, K.; Govind, C.; Karunakaran, V.; Ayyadurai, N.,
Excited State Electronic Interconversion and Structural Transformation of Engineered Red Emitting Green Fluorescent Protein Mutant.
The Journal of Physical Chemistry B, 2019, 123, 2316-2324.
44 Velmurugan, K.; Prabhu, J.; Raman, A.; Duraipandy, N.; Kiran, M. S.; Easwaramoorthi, S.; Tang, L.; Nandhakumar, R.,
Dual Functional Fluorescent Chemosensor for Discriminative Detection of Ni2+ and Al3+ Ions and Its Imaging in Living Cells.
ACS Sustainable Chemistry & Engineering 2018, 6, 16532–16543.
43 Raman, A.; Augustine, G.; Ayyadurai, N.; Easwaramoorthi, S.,
Gated photochromism in azobenzene-appended rhodamine cassette: through-bond energy transfer – a universal strategy towards “Lock and Unlock” system.
Journal of Materials Chemistry C 2018, 6, 10497-10501.
42 Raman, A.; Augustine, G.; Ayyadurai, N.; Easwaramoorthi, S.,
Photoswitchable azobenzene–rhodamine tweezers for biosensing of Al3+ ions.
New Journal of Chemistry, 2018, 42, 9300-9305.
41 Elavarasan, K.; Saravanan, C.; Selvam, N. P.; Easwaramoorthi, S.,
Benzothiadiazole-Based Diarylamines as a Fluoride Sensor: Prevention of Fluoride Induced Decomposition of Receptor Molecule by Complex Formation with Cu2+.
ChemistrySelect 2018, 3, 10085-10090.
40 George, A.; Krishna Priya, G.; Ilamaran, M.; Kamini, N. R.; Ganesh, S.; Easwaramoorthi, S.; Ayyadurai, N.,
Accelerated Strain-Promoted and Oxidation-Controlled Cyclooctyne-Quinone Cycloaddition for Cell Labeling.
ChemistrySelect 2017, 2, 7117-7122.
39 Umamahesh, B.; Ajantha, J.; Sravani, C.; Easwaramoorthi, S.; Sathiyanarayanan, K. I.,
Luminescent tetrahydrodibenzo[a,i]phenanthridin-5-yl)phenol-boron complexes (borophenanthridines).
Dyes and Pigments 2017, 137, 182-190.
38 Prabhu, J.; Velmurugan, K.; Raman, A.; Duraipandy, N.; Kiran, M. S.; Easwaramoorthi, S.; Nandhakumar, R.,
A simple chalcone based ratiometric chemosensor for sensitive and selective detection of Nickel ion and its imaging in live cells.
Sensors and Actuators B: Chemical, 2017, 238, 306-317.
37 Deepankumar, K.; George, A.; Krishna Priya, G.; Ilamaran, M.; Kamini, N. R.; Senthil, T. S.; Easwaramoorthi, S.; Ayyadurai, N.,
Next Generation Designed Protein as a Photosensitizer for Biophotovoltaics Prepared by Expanding the Genetic Code.
ACS Sustainable Chemistry & Engineering, 2017, 5 (1), 72-77.
36 Balijapalli, U.; Udayadasan, S.; Panyam Muralidharan, V.; Sukumarapillai, D. K.; Shanmugam, E.; Paduthapillai Gopal, A.; S. Rathore, R.; Kulathu Iyer, S.,
An insight into the photophysical properties of amide hydrogen bonded N-(benzo[d]thiazol-2-yl) acetamide crystals.
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2017, 173, 572-577.
35 Umamahesh, B.; Sathiskumar, U.; Augustine, G.; Easwaramoorthi, S.; Ayyadurai, N.; Sathiyanarayanan, K. I.,
Photophysical studies of donor, acceptor substituted tetrahydrodibenzo[a,i]phenanthridines.
Dyes and Pigments 2016, 134, 409-418.
34 Reddy, K. R.; Varathan, E.; Lobo, N. P.; Easwaramoorthi, S.; Narasimhaswamy, T.,
Influence of Thiophenes on Molecular Order, Mesophase, and Optical Properties of π-Conjugated Mesogens.
The Journal of Physical Chemistry C 2016, 120 (39), 22257-22269.
33 Karthik, S.; Ajantha, J.; Nagaraja, C.; Easwaramoorthi, S.; Gandhi, T.,
Synthesis and photophysics of extended π-conjugated systems of substituted 10-aryl-pyrenoimidazoles.
Organic & Biomolecular Chemistry, 2016, 14 (43), 10255-10266.

Balijapalli, U.; Udayadasan, S.; Easwaramoorthi, S.; Kulathu Iyer, S.
Synthesis, Photophysical and acidochromic properties of a series of tetrahydrodibenzo[a,i]phenanthridine chromophores.
Dyes and Pigments, 2016, 130, 233-244.


Ajantha, J.; Varathan, E.; Bharti, V.; Subramanian, V.; Easwaramoorthi, S.; Chand, S.
Photophysical and charge transport properties of pyrazolines.
Rsc Adv 2016, 6, 786-795.


Velmurugan, K.; Raman, A.; Don, D.; Tang, L. J.; Easwaramoorthi, S.; Nandhakumar, R.
Quinoline benzimidazole-conjugate for the highly selective detection of Zn(II) by dual colorimetric and fluorescent turn-on responses.
Rsc Adv 2015, 5, 44463-44469.


Reddy, M. G.; Varathan, E.; Lobo, N. P.; Easwaramoorthi, S.; Narasimhaswamy, T.; Mandal, A. B.
Three-Ring-Based Thermotropic Mesogens with a Dimethylamino Group: Structural Characterization, Photophysical Properties, and Molecular Order.
J Phys Chem C 2015, 119, 9477-9487.


Reddy, M. G.; Lobo, N. P.; Varathan, E.; Easwaramoorthi, S.; Narasimhaswamy, T.
Intramolecular charge transfer interactions and molecular order of rod like mesogens.
Rsc Adv, 2015, 5, 105066-105078.


Gunasekar, R.; Thamaraiselvi, P.; Rathore, R. S.; Sathiyanarayanan, K. I.; Easwaramoorthi, S.
Tuning the Electronic Properties of 2-Cyano-3-phenylacrylamide Derivatives.
J Org Chem 2015, 80, 12351-12358.


Velmurugan, K.; Raman, A.; Easwaramoorthi, S.; Nandhakumar, R.
Pyrene pyridine-conjugate as Ag selective fluorescent chemosensor.
Rsc Adv 2014, 4, 35284-35289.


Senthilkumar, K.; Mohan, S. C.; Easwaramoorthi, S.; Jothivenkatachalam, K.; Natarajan, P.
Photoprocesses of molecules encapsulated in porous solids XI: Excited state dynamics of proflavine and photosensitization of TiO2 in nanoporous materials.
Micropor Mesopor Mat, 2014, 195, 124-130.


Saravanan, C.; Easwaramoorthi, S.; Wang, L.
Colorimetric detection of fluoride ion by 5-arylidenebarbituric acids: dual interaction mode for fluoride ion with single receptor.
Dalton T 2014, 43, 5151-5157.


Saravanan, C.; Easwaramoorthi, S.; Hsiow, C. Y.; Wang, K.; Hayashi, M.; Wang, L.
Benzoselenadiazole Fluorescent Probes - Near-IR Optical and Ratiometric Fluorescence Sensor for Fluoride Ion.
Org Lett 2014, 16, 354-357.


Ramachandran, G.; Raman, A.; Easwaramoorthi, S.; Rathore, R. S.; Sathiyanarayanan, K.
Four component domino reaction for the synthesis of highly functionalized dimeric tetracyclic dilactam fluorophores: H-bond aided self-assembly.
Rsc Adv 2014, 4, 29276-29280.


Easwaramoorthi, S.; Thamaraiselvi, P.; Duraimurugan, K.; Beneto, A. J.; Siva, A.; Nair, B. U.
Charge instability of symmetry broken dipolar states in quadrupolar and octupolar triphenylamine derivatives.
Chem Commun 2014, 50, 6902-6905.


Easwaramoorthi, S.; Umamahesh, B.; Cheranmadevi, P.; Rathore, R. S.; Sathiyanarayanan, K. I.
Synthesis of green light emitting fused pyrazolinopiperidines - photophysical and electrochemical studies.
Rsc Adv 2013, 3, 1243-1254.


1She, C. X.; Easwaramoorthi, S.; Kim, P.; Hiroto, S.; Hisaki, I.; Shinokubo, H.; Osuka, A.; Kim, D.; Hupp, J. T.
Excess Polarizability Reveals Exciton Localization/Delocalization Controlled by Linking Positions on Porphyrin Rings in Butadiyne-Bridged Porphyrin Dimers.
J Phys Chem A 2010, 114, 3384-3390.


Kim, K.; Jo, C.; Easwaramoorthi, S.; Sung, J.; Kim, D. H.; Churchill, D. G.
Crystallographic, Photophysical, NMR Spectroscopic and Reactivity Manifestations of the "8-Heteroaryl Effect" in 4,4-Difluoro-8-(C4H3X)-4-bora-3a,4a-diaza-s-indacene (X=O, S, Se) (BODIPY) Systems.
Inorg Chem 2010, 49, 4881-4894.


keda, S.; Toganoh, M.; Easwaramoorthi, S.; Lim, J. M.; Kim, D.; Furuta, H.
Synthesis and Photophysical Properties of N-Fused Tetraphenylporphyrin Derivatives: Near-Infrared Organic Dye of [18]Annulenic Compounds.
J Org Chem 2010, 75, 8637-8649.


Hayashi, S.; Inokuma, Y.; Easwaramoorthi, S.; Kim, K. S.; Kim, D.; Osuka, A.
Meso-Trialkyl-Substituted Subporphyrins.
Angew Chem Int Edit 2010, 49, 321-324.


Easwaramoorthi, S.; Kim, P.; Lim, J. M.; Song, S.; Suh, H.; Sessler, J. L.; Kim, D.
The self-assembly and photophysical characterization of tri(cyclopenta[def]phenanthrene)-derived nanoparticles: a template free synthesis of hollow colloidosomes.
J Mater Chem 2010, 20, 9684-9694.


Tsurumaki, E.; Inokuma, Y.; Easwaramoorthi, S.; Lim, J. M.; Kim, D.; Osuka, A.
Peripheral Hexabromination, Hexaphenylation, and Hexaethynylation of meso-Aryl-Substituted Subporphyrins.
Chem-Eur J 2009, 15, 237-247.


Nakazono, S.; Easwaramoorthi, S.; Kim, D.; Shinokubo, H.; Osuka, A.
Synthesis of Arylated Perylene Bisimides through C-H Bond Cleavage under Ruthenium Catalysis.
Org Lett 2009, 11, 5426-5429.


Ikeda, T.; Aratani, N.; Easwaramoorthi, S.; Kim, D.; Osuka, A.
Meso-beta Doubly Linked Zn(II) Porphyrin Trimers: Distinct anti-versus-syn Effects on Their Photophysical Properties.
Org Lett, 2009, 11, 3080-3083.


Easwaramoorthi, S.; Shin, J. Y.; Cho, S.; Kim, P.; Inokuma, Y.; Tsurumaki, E.; Osuka, A.; Kim, D.
Versatile Photophysical Properties of meso-Aryl-Substituted Subporphyrins: Dipolar and Octupolar Charge-Transfer Interactions.
Chem-Eur J, 2009, 15, 12005-12017.


Easwaramoorthi, S.; Natarajan, P.
Characterisation and spectral properties of surface adsorbed phenosafranine dye in zeolite-Y and ZSM-5: Photosensitisation of embedded nanoparticles of titanium dioxide.
Micropor Mesopor Mat, 2009, 117, 541-550.


Easwaramoorthi, S.; Ananthanarayanan, K.; Sreedhar, B.; Natarajan, P.
X-Ray photoelectron spectroscopic investigation of phenosafranine adsorbed onto micro and mesoporous materials.
J Chem Sci, 2009, 121, 711-718.


Yoon, Z. S.; Easwaramoorthi, S.; Kim, D.
Zn(II)porphyrin helical arrays: A strategy to overcome conformational heterogeneity by host-guest chemistry.
B Korean Chem Soc, 2008, 29, 197-201.


Song, J.; Jang, S. Y.; Yamaguchi, S.; Sankar, J.; Hiroto, S.; Aratani, N.; Shin, J. Y.; Easwaramoorthi, S.; Kim, K. S.; Kim, D.; Shinokubo, H.; Osuka, T.
2,5-thienylene-bridged triangular and linear porphyrin trimers.
Angew Chem Int Edit, 2008, 47, 6004-6007.


Inokuma, Y.; Easwaramoorthi, S.; Yoon, Z. S.; Kim, D.; Osuka, A.
Meso-(4-(N,N-dialkylamino)phenyl)-substituted subporphyrins: Remarkably perturbed absorption spectra and enhanced fluorescence by intramolecular charge transfer interactions.
J Am Chem Soc 2008, 130, 12234-+.


Inokuma, Y.; Easwaramoorthi, S.; Jang, S. Y.; Kim, K. S.; Kim, D.; Osuka, A.
Effective expansion of the subporphyrin chromophore through conjugation with meso-oligo(1,4-phenyleneethynylene) substituents: Octupolar effect on two-photon absorption.
Angew Chem Int Edit, 2008, 47, 4840-4843.


Easwaramoorthi, S.; Natarajan, P.
Spectral and electrochemical studies of methylene blue and thionine encapsulated in zeolite-Y.
J Porous Mat, 2008, 15, 343-349.


Easwaramoorthi, S.; Natarajan, P.
Redox properties of phenosafranine at zeolite-modified electrodes - Effect of surface modification and solution pH.
Mater Chem Phys, 2008, 107, 101-109.


Easwaramoorthi, S.; Jang, S. Y.; Yoon, Z. S.; Lim, J. M.; Lee, C. W.; Mai, C. L.; Liu, Y. C.; Yeh, C. Y.; Vura-Weis, J.; Wasielewski, M. R.; Kim, D.
Structure-property relationship for two-photon absorbing multiporphyrins: Supramolecular assembly of highly-conjugated multiporphyrinic ladders and prisms.
J Phys Chem A, 2008, 112, 6563-6570.


Easwaramoorthi, S.; Natarajan, P.
Photophysical properties of phenosafranine (PHNS) adsorbed on the TiO2-incorporated zeolite-Y.
Micropor Mesopor Mat, 2005, 86, 185-190.

Awards and Merits

  • Best Outgoing Student of the year 1997, Sri Vasavi College, Erode

  • Junior Research Fellowship, Department of Science and Technology, Govt. of India

  • Senior Research Fellowship, CSIR, India

  • Best Poster Presentation Award, CRSI National Symposium in Chemistry, Central Leather Research Institute, 2003

  • Brain Korea 21 Post-Doctoral Fellowship, Yonsei University, Republic of Korea

  • World Class University Research Professor, Yonsei University, Republic of Korea

  • Young Scientist Award, Chemical Research Society of India, awarded during 24th CRSI-National Symposium in Chemistry, February 2019