CSIR-Central Leather Research Institute
Dr.S. Easwaramoorthi
Academic Qualifications
    Ph.D University of Madras (2005)
Contact Details
Dr.S. Easwaramoorthi
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)
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
1 A Novel Polycyclic Dihydropyrimidine-Dione Compound for Industrial Application and a Process for the Preparation Thereof Indian Patent Application 0251NF2014, 2014
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