Université Libre de Bruxelles

Chimie des Polymères CP 206/01

Campus de la Plaine

1050 Bruxelles


Office : 1B5 219

Phone : +32 2 650 52 90

Fax : +32 2 650 54 10

E-mail :


Susobhan Das earned his B.Sc. (Chemistry) from the Department of Chemistry of Sitananda College, in 2013 and M.Sc. from Vidyasagar University, Midnapore, West Bengal, India, in 2015. After receiving his PhD degree with Prof. C Malla Reddy at the Indian Institute of Science Education and Research (IISER), Kolkata in the domain of solid-state chemistry and smart materials (2022) he joined the laboratory of Polymer chemistry at the Université libre de Bruxelles (ULB) hosted by Prof. Yves Geerts in November, 2022 as a post-doctoral research associate.


The signature of life as we know it is chirality. Biochemists have repeatedly discovered that living cells only use one chirality at a time when utilizing chiral substances. For example, all of the sugars in DNA are right- handed. All of the amino acids in proteins are left-handed. Sometimes the effects of medications containing the incorrect enantiomers might be harmful or even fatal. Chiral symmetry breaking, CHISUB features a multidisciplinary approach, towards crystallization mechanisms of molecules, which uses chiral symmetry breaking as local probe of ordering phenomena and as a tool for enantiomeric separation. Crystallization often starts on surfaces of rigid substrates with the formation of 2D self-assembled molecular layers and then extends to bulk phases. CHISUB intends to design, synthesize, and characterize a library of molecular systems tailored to break chiral symmetry at different time- and length-scales. These systems will be studied by scanning probe microscopy at 2D and by electron microscopy and diffraction techniques when extending to 3D. Chiral symmetry breaking towards specific handedness will be directed by external stimuli, such as a combination of electric and magnetic fields, spin polarization, and even rotation of molecular machines. Theoretical and experimental studies will be carried out in synergy to explore ordering phenomena and chiral selectivity processes from first principles and reach a fundamental understanding beyond specific systems. By solving the research challenge, we not only address some questions about the origin of the LIFE but also it has enormous potential application in the field of Spintronics.


A full publication list can be found on Google Scholar

  1. Multidrug salt forms of norfloxacin with non-steroidal anti-inflammatory drugs: solubility and membrane permeability studies
    Biswajit Bhattacharya, Amit Mondal, Saundray Raj Soni, Susobhan Das, Surojit Bhunia, K Bal Raju, Animesh Ghosh, and C Malla Reddy CrystEngComm, 2018, 20, 6420‒6429.
  2. Harnessing molecular rotations in plastic crystals: a holistic view for crystal engineering of adaptive soft materials
    Susobhan Das, Amit Mondal, and C Malla Reddy
    Chem. Soc. Rev., 2020, 49, 8878-8896.
  3. Screening, crystal structures and solubility studies of a series of multidrug salt hydrates and cocrystals of fenamic acids with trimethoprim and sulfamethazine
    Biswajit Bhattacharya§, Susobhan Das§, Garima Lal, Saundray Raj Soni, Animesh Ghosh, C Malla Reddy, and Soumyajit Ghosh
    Mol. Struc., 2020, 1199, 127028-127037. §Contributed equally to this work
  4. Metal‐like Ductility in Organic Plastic Crystals: Role of Molecular Shape and Dihydrogen Bonding Interactions in Aminoboranes
    Amit Mondal§, Biswajit Bhattacharya§, Susobhan Das§, Surojit Bhunia, Rituparno Chowdhury, Somnath Dey, and C Malla Reddy
    Angew. Chem. Int. Ed., 2020, 59, 2 – 12. §Contributed equally to this work
  5. Elastic orange emissive single crystals of 1, 3-diamino-2, 4, 5, 6-tetrabromobenzene as flexible optical waveguides
    Venkatesh Gude, Priyanka Choubey, Susobhan Das, C. Malla Reddy, and Kumar Biradha
    Mater. Chem. C, 2021, 9, 9465-9472.
  6. Autonomous self-repair in piezoelectric molecular crystals
    Surojit Bhunia, Shubham Chandel, Sumanta Kumar Karan, Somnath Dey, Akash Tiwari, Susobhan Das, Nishkarsh Kumar, Rituparno Chowdhury, Saikat Mondal, Ishita Ghosh, Amit Mondal, Bhanu Bhusan Khatua, Nirmalya Ghosh, and C Malla Reddy
    Science, 2021, 373, 321–327.
  7. Temperature-Reliant Dynamic Properties and Elasto-Plastic to Plastic Crystal (Rotator) Phase Transition in a Metal Oxyacid Salt
    Susobhan Das, Subhankar Saha, Mrinmay Sahu, Amit Mondal, and C. Malla Reddy
    Angew. Chem. Int. Ed., 2022, 61, e202115359.
  8. Viscoelastic Covalent Organic Nanotube Fabric via Macroscopic Entanglement
    Kalipada Koner§, Susobhan Das§, Shibani Mohata, Nghia Tuan Duong, Yusuke Nishiyama, Sharath Kandambeth, Suvendu Karak, C. Malla Reddy, and Rahul Banerjee
    J. Am. Chem. Soc., 2022, 144, 35, 16052–16059. §Contributed equally to this work
  9. Elastic organic semiconducting single crystals for durable all-flexible field-effect transistors: insights into the bending mechanism
    Ranita Samanta, Susobhan Das, Saikat Mondal, Tamador Alkhidir, Sharmarke Mohamed, Satyaprasad P. Senanayak and C. Malla Reddy
    Chem. Sci., 2023, 14, 1363-1371.
  10. Non-stoichiometric carbamazepine cocrystal hydrates of 3,4-/3,5-dihydroxybenzoic acids: coformer–water exchange
    Trishna Rajbongshi, Kashyap Kumar Sarmah, Susobhan Das, Poonam Deka, Arijit Saha, Binoy K. Saha, Horst Puschmann, C. Malla Reddy and Ranjit Thakuria
    Chem. Commun., 2023, 59, 3902-3905.
  11. Heparin-Induced Dual Mode Luminescence Modulation of Organic Nanoparticles and Efficient Energy Transfer
    Rakesh Biswas, Susobhan Das, Horst Puschmann and Supratim Banerjee
    Chem. Asian J., 2023, e202300100 (Accepted article) (DOI: 10.1002/asia.202300100)
  12. TrischelatedmeridionalisomersofCo(III)complexes:Synthesis,crystalstructure,proteinbinding, cytotoxicity studies and DFT/TDDFT calculation
    Dama Saren, Susobhan Das, Aparup Paul, Sharad S. Tat, Manas Kumar Santra, Tapan Kumar Si, Horst Puschmann and Subal Chandra Manna
    Inorganica Chimica Acta, 2023, 550, 121423.
  13. ExceptionalThermo-mechano-fluorochromismandNanomechan-icalAnalysisonMechanically Responsive J and H type Polymorphic Systems
    Poonam Deka, Susobhan Das, Parishmita Sarma, Kalyan J. Kalita, Ratheesh K. Vijayara-ghavan, C. Malla Reddy, and Ranjit Thakuria
    Cryst. Growth Des., 2023, (Under final proof correction)