Soumyajit's Research Group
Structural Organic Chemistry
Lab #414, SS Bhatnagar Block
Department of Chemistry
Indian Institute of Technology Ropar
Rupnagar, Punjab 140001, India
Journals
From IIT Ropar:
37. Sakshi Sahewal, Suman Sharma, Dibyendu Mallick, Soumyajit Das*. Substituent-induced modulation of proaromaticity in benzo-fused fluorenophenalene exhibiting low-lying LUMO. Chem. Commun., 2026, DOI: 10.1039/D6CC01746K. [2026 Pioneering Investigator]
36. Hemonta Kumar Saha, Tarun, Vishvajeet Kumar, Dibyendu Mallick, Upendra Kumar Pandey,* Soumyajit Das*. N‑Annulated [5]Helicenes: Syntheses, (Anti)Aromaticity and Properties. Org. Lett., 2026, 28, 2260–2265.
35. Hemonta Kumar Saha, Tarun, Dibyendu Mallick, Upendra Kumar Pandey,* Soumyajit Das*. N-Annulated Indenofluorene: An Isomeric Motif for N-Annulated Perylene. Org. Lett., 2025, 27, 13846–13851.
34. Hemonta Kumar Saha, Subhashis Ghosh, Dibyendu Mallick, Satyaprasad P. Senanayak,* Soumyajit Das*. Dibenzo-Extended s-Indacenodicarbazole Isomers with Tunable Antiaromatic Characteristics: Impact of Aromaticity, Syntheses, and Properties. J. Org. Chem., 2025, 90, 17304–17313.
33. Sakshi Sahewal, Ankita Sharma, Priyank Kumar Sharma, Dibyendu Mallick, Upendra Kumar Pandey,* Soumyajit Das*. Synthesis of a Selena-Hybrid [5]Radialene Derivative and Exploration of Polycyclic Heteroterphenoquinones as Ambipolar Charge Carriers. Eur. J. Org. Chem., 2025, 28, e202500344.
32. Sakshi Sahewal, Subhashis Ghosh, Prabhanjan Pradhan, Priyank Kumar Sharma, Md Saifuddin, Biplab K. Patra, Satyaprasad P Senanayak,* Soumyajit Das*. S-Heterocyclic s-Indacenodifluorene: Synthesis, Properties and Thermally Tunable Ambipolar Field-Effect Mobility. Chem. Eur. J., 2025, 31, e202500725.
31. Neha Maurya, Palash Jana, Himanshu Sharma, Subhajit Bandyopadhyay, Soumyajit Das*. 5,5'-Biindeno[2,1-c]fluorene: importance of C5-C5' linkage for an indeno[2,1-c]fluorene dimer exhibiting an open-shell ground state. Chem. Commun., 2025, 61, 4808-4811. [Open Access]
30. Himanshu Sharma, Palash Jana, Dibyendu Mallick, Subhajit Bandyopadhyay, Soumyajit Das*. 6,6'-Biindeno[1,2-b]fluorene: an open-shell indenofluorene dimer. Chem. Sci., 2024, 15, 20215-20222. [Themed collection: #MyFirstChemSci 2024] [Open Access]
29. Priyank Kumar Sharma, Akanksha Babbar, Sakshi Sahewal, Soumyajit Das*. Syntheses and Properties of Two Isomeric Phenanthroacephenanthrylene Derivatives. Eur. J. Org. Chem., 2024, 27, e202400991. [Invited contribution for special issue: Young Organic Talents in India]
28. Priyank Kumar Sharma, Palash Jana, Subhajit Bandyopadhyay, Soumyajit Das*. Cyano disubstituted tetrabenzoindeno[2,1-a]fluorene: open-shell or closed-shell? Chem. Commun., 2024, 60, 7319-7322. [ChemComm 60th Anniversary Authors Collection] [ChemComm 60th Anniversary Roadshow in India]
27. Himanshu Sharma, Ankita, Vishal Mittal, Upendra Kumar Pandey,* Soumyajit Das*. Syntheses and Properties of Hole-Transporting Biindenofluorenes. Org. Lett., 2024, 26, 2617-2622.
26. Hemonta Kumar Saha, Dibyendu Mallick, Soumyajit Das*. Dibenzoheterole-Fused s-Indacenes. J. Org. Chem., 2023, 88, 16248-16258.
25. Priyank Kumar Sharma, Dibyendu Mallick, Soumyajit Das*. A Thiophenoradialene-Embedded Polycyclic Heteroterphenoquinone Exhibiting Dominant Antiaromatic Traits. Org. Lett., 2023, 25, 5089–5093. [chosen as #TOCoftheweek]
24. Priyank Kumar Sharma, Akanksha Babbar, Dibyendu Mallick, Soumyajit Das*. Constructing 1-Ethoxyphenanthro[9,10-e]acephenanthrylene for the Synthesis of a Polyaromatic Hydrocarbon Containing a Formal Azulene Unit. J. Org. Chem., 2023, 88, 5473–5482.
23. Priyank Kumar Sharma, Dibyendu Mallick, Himanshu Sharma, Soumyajit Das*. Dominating Antiaromatic Character of as-Indacene Decides Overall Properties of a Formally Aromatic Dicyclopenta[c]fluorenothiophene. Org. Lett., 2023, 25, 2201–2206.
22. Himanshu Sharma, Ankita, Pooja Bhardwaj, Upendra Kumar Pandey,* Soumyajit Das*. Exploring Indeno[2,1-c]fluorene Antiaromatics with Unsymmetrical Disubstitution and Balanced Ambipolar Charge-Transport Properties. Org. Mater., 2023, 5, 72–83. [Special issue: Organic Materials in India] [Among most read Top 10 articles: Feb 2023 - Feb 2024] [Open Access]
21. Himanshu Sharma, Nikhil Bhardwaj, Soumyajit Das*. Revisiting indeno[1,2-b]fluorene by steric promoted synthesis while isolating the second stable 4nπ indeno[2,1-a]fluorene. Org. Biomol. Chem., 2022, 20, 8071–8077. [Invited article]
20. Hemonta Kumar Saha, Dibyendu Mallick, Soumyajit Das*. Unveiling two antiaromatic s-indacenodicarbazole isomers with tunable paratropicity. Chem. Commun., 2022, 58, 8492–8495. [2022 Emerging Investigator] [Profile highlight]
19. Priyank Kumar Sharma and Soumyajit Das*. Unveiling a Quinoidal 2,3:10,11-Dibenzoheptazethrene. J. Org. Chem., 2022, 87, 5430–5436.
18. Himanshu Sharma, Priyank Kumar Sharma, Soumyajit Das*. Revisiting indeno[2,1-c]fluorene synthesis while exploring the fully conjugated s-indaceno[2,1-c:6,5-c']difluorene. Chem. Commun., 2020, 56, 11319–11322. [ChemComm Milestones – First Independent Articles] [Interview @ChemCommun] [Highlighted by Prof. T.M. Swager in Synfacts 2021, 17, 32]
Before Joining IIT Ropar:
17. Soumyajit Das and Jishan Wu: Polycyclic Hydrocarbons with an Open-Shell Ground State. Physical Sciences Reviews, 2017, 2, 20160109.
16. Qingbiao Qi, Jing Zhang, Soumyajit Das, Wangdong Zeng, Jie Luo, Jie Zhang, Peng Wang, Jishan Wu: Push-pull type alkoxy-wrapped N-annulated perylenes for dye-sensitized solar cells. RSC Advances 2016, 6(84), 81184-81190.
15. Rui Huang, Hoa Phan, Tun Seng Herng, Pan Hu, Wangdong Zeng, Shao-qiang Dong, Soumyajit Das, Yongjia Shen, Jun Ding, David Casanova, Jishan Wu: Higher order π-conjugated polycyclic hydrocarbons with open-shell singlet ground state: nonazethrene versus nonacene. Journal of the American Chemical Society 2016, 138(32), 10323
14. Soumyajit Das, Tun Seng Herng, Jose L. Zafra, Paula Mayorga Burrezo, Masaaki Kitano, Masatoshi Ishida, Tullimilli Y. Gopalakrishna, Pan Hu, Atsuhiro Osuka, Juan Casado, Jun Ding, David Casanova, Jishan Wu: Fully-fused quinoidal/aromatic carbazole macrocycles with poly-radical characters. Journal of the American Chemical Society 2016, 138(24), 7782. [JACS Spotlight]
13. Priya Yadav, Soumyajit Das, Hoa Phan, Tun Seng Herng, Jun Ding, Jishan Wu: Kinetically blocked stable 5,6:12,13-dibenzozethrene: a laterally π-extended zethrene with enhanced diradical character. Organic Letters 2016, 18(12), 2886.
12. Pan Hu, Sangsu Lee, Kyu Hyung Park, Soumyajit Das, Tun Seng Herng, Theo P Gonçalves, Kuo-Wei Huang, Jun Ding, Dongho Kim, Jishan Wu: Octazethrene and its isomer with different diradical characters and chemical reactivity: the role of the bridge structure. The Journal of Organic Chemistry 2016, 81(7), 2911
11. Soumyajit Das, Jishan Wu: Toward singlet–triplet bistable nonalternant kekulé hydrocarbons: azulene-to-naphthalene rearrangement. Organic Letters 2015, 17(23), 5854.
10. Soumyajit Das, Sangsu Lee, Minjung Son, Xiaojian Zhu, Wenhua Zhang, Bin Zheng, Pan Hu, Zebing Zeng, Zhe Sun, Wangdong Zeng, Run-Wei Li, Kuo-Wei Huang, Jun Ding, Dongho Kim, Jishan Wu: para-Quinodimethane-bridged perylene dimers and pericondensed quaterrylenes: the effect of the fusion mode on the ground states and physical properties. Chemistry - A European Journal 2014, 20(36), 11410.
9. Zhe Sun, Sangsu Lee, Kyu Hyung Park, Xiaojian Zhu, Wenhua Zhang, Bin Zheng, Pan Hu, Zebing Zeng, Soumyajit Das, Yuan Li, Chunyan Chi, Run-Wei Li, Kuo-Wei Huang, Jun Ding, Dongho Kim, Jishan Wu: Dibenzoheptazethrene isomers with different biradical characters: an exercise of Clar's aromatic sextet rule in singlet biradicaloids. Journal of the American Chemical Society 2013, 135(48), 18229
8. Soumyajit Das, Palas Baran Pati, Sanjio S Zade: Cyclopenta[c]thiophene-based D−A conjugated copolymers: effect of heteroatoms (S, Se, and N) of benzazole acceptors on the properties of polymers. Macromolecules 2012, 45(13), 5410.
7. Palas Baran Pati, Soumyajit Das, Sanjio S Zade: Benzooxadiazaole-based D–A–D co-oligomers: synthesis and electropolymerization. Journal of Polymer Science Part A: Polymer Chemistry 2012, 50(19), 3996.
6. Anjan Bedi, Satyaprasad P. Senanayak, Soumyajit Das, K S Narayan, Sanjio S Zade: Cyclopenta[c]thiophene oligomers based solution processable D–A copolymers and their application as FET materials. Polymer Chemistry 2012, 3(6), 1453
5. Soumyajit Das, Santanu Mandal, Balaram Mukhopadhyay, Sanjio S Zade: Synthesis of carbohydrate-functionalized thiophene-capped cyclopenta[c]thiophene for concanavalin A recognition. Tetrahedron Letters 2012, 53(12), 1464.
4. Soumyajit Das, Anjan Bedi, G Rama Krishna, C Malla Reddy, Sanjio S Zade: Cyclopenta[c]selenophene based cooligomers and their polymers: comparative study with thiophene analogues. Organic & Biomolecular Chemistry 2011, 9(20), 6963
3. Soumyajit Das, Satyaprasad P Senanayak, Anjan Bedi, K S Narayan, Sanjio S Zade: Synthesis and charge carrier mobility of a solution-processable conjugated copolymer based on cyclopenta[c]thiophene. Polymer 2011, 52(25), 5780
2. Soumyajit Das, Pradip Kumar Dutta, Snigdha Panda, Sanjio S Zade: 3,4-Ethylenedioxythiophene and 3,4-ethylenedioxyselenophene: synthesis and reactivity of Cα-Si bond. The Journal of Organic Chemistry 2010, 75(14), 4868.
1. Soumyajit Das, Sanjio S Zade: Poly(cyclopenta[c]selenophene): a new polyselenophene. Chemical Communications 2010, 46, 1168
Book Chapters
1. "Open-shell benzenoid polycyclic hydrocarbons" by Soumyajit Das, Jishan Wu, in a book entitled 'Polycyclic Arenes and Heteroarenes: Synthesis, Properties, and Applications', Editor: Qian Miao, Wiley-VCH, 2015, 3
2. "Polycyclic hydrocarbons with an open-shell ground state" by Soumyajit Das, Jishan Wu, in a book entitled 'Chemistry of Carbon Nanostructures', Editor: Klaus Müllen, Xinliang Feng, DeGreuyter, 2017, 253.