Jagadese J. VITTAL
Emeritus Professor, FRSC, FSNIC, FICS, FIAAM
Postdoc., Univ. of Western Ontario, 1987; Ph.D., Indian Inst. of Science, 1982; M.Sc., Madurai Univ., 1977; B.Sc., Univ. of Madras, 1975.
Contact Information:
Email: jjvittal@nus.edu.sg and jjvittal@u.nus.edu
Research
Recognition and Achievements
- Toronto International Invention Innovation Competition in Canada (iCAN 2023) Gold Medal, 2023
- Japanese Photochemistry Association Elsevier Lectureship Award, 2023
- Chemical Research Society of India (CRSI) Medal 2020
- Indian Chemical Society G.V. Bakore Memorial Award, 2019
- Outstanding Chemist Award, NUS, 2014
- CRISP Award, Faculty of Science, NUS 2013
- Outstanding Researcher Award, NUS, 2011
- Outstanding Scientist Award, NUS, 2007
- ISCAS Bronze Medal, India, 2001
- Highlighted in Angewandte Author Profile, 2014
- World Class University Chair Professor, Gyeongsang National University, S. Korea, 2009-2013
Research Interests
JJ’s research interests include mechanically responsive dynamic crystals, solid-state chemistry, photoreactivity, and structural transformations, energy storage and nano materials, gels, and fibres. We are also interested in designing multifunctional materials showing multi-photon absorption, second harmonic generation (SHG) and third harmonic generation (THG) properties and creating non-centrosymmetry via defects in CPs and MOFs.
Research Highlight
In the recent review, we provide an overview of the development of photoreactive crystals exhibiting [2+2] cycloaddition reaction and dynamic effects, since it has garnered lots of attention among solid state chemists. We presented important strategies involved, and concepts behind the methods developed towards a rational approach for the fabrication of advanced solid-state materials. Apart from topochemical transformations, the important roles played by weak interactions, guest solvents and mechanical grinding have been highlighted in several class of compounds to show structural transformations which defy the expected outcomes. Overall, the progress of [2+2] cycloaddition reaction in solid state materials have been discussed from UV induced structural transformations to the development of smart actuating materials. Acc. Chem. Res. 2022, 55, 1455-1455.
Representative Publications
The full publication list is here.
- Vittal, J.J., [2+2] Photocycloaddition reaction as a tool to monitor the molecular motions in the solid state by mechanochemical grinding. J. Photochem. Photobiol. C: Photochem. Rev., 2023, 57, 100636.
- Rath, B.B.; Kottilil, D.; Ji, W.; Vittal, J.J., Enhancement in Two-Photon Absorption and Photoluminescence in Single Crystals of Cd(II) Metal Organic Frameworks. ACS Appl. Mater. & Interfaces, 2023, 15, 26939-26945.
- Rath, B.B.; Vittal, J. J., Photoreactive Crystals Exhibiting [2+2] Photocycloaddition Reaction and Dynamic Effects. Acc. Chem. Res. 2022, 55, 1445-1455.
- Liu, N.; Chen, Z.; Fan, W.; Su, J.; Lin, T.; Xiao, S.; Meng, J.; He, J.; Vittal, J.J., Jiang, J. Highly Efficient Multiphoton Absorption of Zn-AIEgen Frameworks. Angew. Chem. Int. Ed. 2022, 61, e202115205.
- Rath, B.B.; Gupta, M.; Vittal, J. J., Multistimuli Responsive Dynamic Effects in a One-Dimensional Coordination Polymer. Chem. Mater. 2022, 34, 178-185.
- Chakraborty, G.; Park, I.H.; Medishetty, R.; Vittal, J.J., Two-Dimensional Metal-Organic Framework Materials: Synthesis, Structure, Properties, and Applications. Chem. Rev. 2021, 121, 3751-3891.
- Rath, B.B.; Gallo, G.; Dinnebier, R.E.; Vittal, J.J., Reversible Thermosalience in a One-Dimensional Coordination Polymer Preceded by Anisotropic Thermal Expansion and Shape Memory Effect. J. Am. Chem. Soc. 2021, 143, 2088–2096.
- Rath, B.B.; Vittal, J.J., Mechanical Bending and Modulation of Photoactuation Properties in a One-Dimensional Pb(II) Coordination Polymer. Chem. Mater. 2021, 33, 4621-4627.
- Rath, B.B.; Vittal, J.J., Dynamic Effects in Crystalline Coordination Polymers. CrystEngComm. 2021, 23, 5738 – 5752
- Gupta, M.; Vittal, J.J., Control of interpenetration and structural transformation in the interpenetrated MOFs. Coord. Chem. Rev. 2021, 435, 213789
- Rath, B.B.; Vittal, J.J., Single-crystal-to-single-crystal [2+2] photo-cycloaddition reaction in a photosalient 1D coordination polymer of Pb(II). J. Am. Chem. Soc. 2020, 142, 20117-20123.
- Chen, Z., et al. Giant Enhancement of Second Harmonic Generation Accompanied by the Structural Transformation of 7-fold to 8-fold Interpenetrated MOF. Angew. Chem. Int. Ed. 2020, 59, 833-839.
