Boric acid as supramolecular graphite Susobhan Das, Khushboo Yadava, C. Malla Reddy, Subhankar Saha Chemical Communications, 2025 Lubrication in molecular crystals.
On the importance of crystal structures for organic thin film transistors Guillaume Schweicher, Susobhan Das, Roland Resel, Yves Geerts Acta Crystallographica Section C Structural Chemistry, 2024 Historically, knowledge of the molecular packing within the crystal structures of organic semiconductors has been instrumental in understanding their solid-state electronic properties. Nowadays, crystal structures are thus becoming increasingly important for enabling engineering properties, understanding polymorphism in bulk and in thin films, exploring dynamics and elucidating phase-transition mechanisms. This review article introduces the most salient and recent results of the field.
Gas Release as an Efficient Strategy to Tune Mechanical Properties and Thermoresponsiveness of Dynamic Molecular Crystals Susobhan Das, Luca Catalano, Yves Geerts Small, 2024 Dynamic molecular crystals combining multiple and finely tunable functionalities are attracting and an increasing attention due to their potential applications in a broad range of fields as efficient energy transducers and stimuli‐responsive materials. In this context, a multicomponent organic salt, piperazinium trifluoroacetate (PZTFA), endowed with an unusual multidimensional responsive landscape is reported. Crystals of the salt undergo smooth plastic deformation under mechanical stress and thermo‐induced jumping. Furthermore, via controlled crystal bending and release of trifluoroacetic acid from the lattice, which is anticipated from the design of the material, both the mechanical response and the thermoresponsive behavior are efficiently tuned while partially preserving the crystallinity of the system. In particular, mechanical deformation hampers guest release and hence the macroscopic jumping effect, while trifluoroacetic acid release stiffens the crystals. These complex adaptive responses establish a new crystal engineering strategy to gain further control over dynamic organic crystals.
Heparin-Induced Dual Mode Luminescence Modulation of Organic Nanoparticles and Efficient Energy Transfer Rakesh Biswas, Susobhan Das, Horst Puschmann, Supratim Banerjee Chemistry an Asian Journal, 2023 Amphiphilic di‐cationic fumaronitrile derivatives with peripheral n‐alkyl chains formed organic nanoparticles (NPs) through self‐assembly in aqueous media. The NPs exhibited enhanced luminescence in both steady‐state and delayed mode in comparison to their molecularly dissolved state. Due to the presence of the multivalent array of positive charges on their surface, they were found to bind heparin, a bio‐polyanion which is routinely employed during surgery as an anticoagulant. The electrostatically driven co‐assemblies resulted in a significant enhancement in the steady‐state and delayed luminescence of the NPs. This provided a highly sensitive detection of the polyanion in aqueous buffer as well as in highly competitive serum and plasma media. Furthermore, and most notably, the heparin based co‐assemblies were found to act as efficient donors exhibiting fluorescence resonance energy transfer (FRET) to acceptor dyes with the energy transfer efficiency reaching up to 88%.
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, et al. Chemical Communications, 2023 A unique set of carbamazepine (CBZ) non-stoichiometric cocrystal hydrates with 34/35DHBA have been synthesized which are facilitated by their isostructural nature with the CBZ dihydrate, resulting in coformer–water exchange (molecular alloy).
Isomorphism in a Series of Five Homologous Compounds A Andotra, S Das, CE Killalea, F Malagreca, C Zuffa, P Pandey, S Khan, ... Crystal Growth & Design , 2026 2026
Control of Polymorphism and Alignment in Photochromic Salicylideneaniline Crystals Grown by Directional Crystallization Y Hagiwara, G Schweicher, S Das, S Hasebe, T Asahi, H Koshima, ... Crystal Growth & Design 25 (7), 2090-2098 , 2025 2025
Boric acid as supramolecular graphite S Das, K Yadava, CM Reddy, S Saha Chemical Communications 61 (90), 17649-17652 , 2025 2025 Citations: 2
Plasticization of a stiff pharmaceutical solid for better tabletability via cocrystallization: Shape synthons as supramolecular protecting groups A Mondal, B Bhattacharya, H Chen, S Khazaei, S Das, S Bhunia, S Dey, ... Chemical Engineering Research and Design 210, 506-512 , 2024 2024 Citations: 2
On the importance of crystal structures for organic thin film transistors G Schweicher, S Das, R Resel, Y Geerts Crystal Structure Communications 80 (10) , 2024 2024 Citations: 7
Gas release as an efficient strategy to tune mechanical properties and thermoresponsiveness of dynamic molecular crystals S Das, L Catalano, Y Geerts Small 20 (34), 2401317 , 2024 2024 Citations: 12
Exceptional Thermo-Mechano-Fluorochromism and Nanomechanical Analysis of Mechanically Responsive J and H Type Polymorphic Systems P Deka, S Das, P Sarma, KJ Kalita, RK Vijayaraghavan, CM Reddy, ... Crystal Growth & Design 24 (6), 2322-2330 , 2024 2024 Citations: 10
Tris chelated meridional isomers of Co (III) complexes: Synthesis, crystal structure, protein binding, cytotoxicity studies and DFT/TDDFT calculation D Saren, S Das, A Paul, SS Tat, MK Santra, TK Si, H Puschmann, ... Inorganica Chimica Acta 550, 121423 , 2023 2023 Citations: 9
Heparin‐Induced Dual Mode Luminescence Modulation of Organic Nanoparticles and Efficient Energy Transfer R Biswas, S Das, H Puschmann, S Banerjee Chemistry–An Asian Journal 18 (9), e202300100 , 2023 2023 Citations: 5
Non-stoichiometric carbamazepine cocrystal hydrates of 3, 4-/3, 5-dihydroxybenzoic acids: coformer–water exchange T Rajbongshi, KK Sarmah, S Das, P Deka, A Saha, BK Saha, ... Chemical Communications 59 (26), 3902-3905 , 2023 2023 Citations: 10
Elastic organic semiconducting single crystals for durable all-flexible field-effect transistors: insights into the bending mechanism R Samanta, S Das, S Mondal, T Alkhidir, S Mohamed, SP Senanayak, ... Chemical Science 14 (6), 1363-1371 , 2023 2023 Citations: 70
Viscoelastic covalent organic nanotube fabric via macroscopic entanglement K Koner, S Das, S Mohata, NT Duong, Y Nishiyama, S Kandambeth, ... Journal of the American Chemical Society 144 (35), 16052-16059 , 2022 2022 Citations: 21
Temperature‐reliant dynamic properties and elasto‐plastic to plastic crystal (rotator) phase transition in a metal oxyacid salt S Das, S Saha, M Sahu, A Mondal, CM Reddy Angewandte Chemie 134 (8), e202115359 , 2022 2022 Citations: 38
On the elasticity of Copper (II) acetylacetonate crystals S Das, G Vreeman, U Ramamurty, CC Sun, CM Reddy ChemRxiv 2021 (0804) , 2021 2021
Harnessing molecular rotations in plastic crystals: a holistic view for crystal engineering of adaptive soft materials. S Das, A Mondal, CM Reddy Acta Cryst 77, C1017 , 2021 2021
Metal-like ductility and malleability in organic plastic crystals A Mondal, B Bhattacharya, S Das, S Bhunia, R Chowdhury, S Dey, ... Acta Cryst 77, C1224 , 2021 2021
Autonomous self-repair in piezoelectric molecular crystals S Bhunia, S Chandel, SK Karan, S Dey, A Tiwari, S Das, N Kumar, ... Science 373 (6552), 321-327 , 2021 2021 Citations: 183
Elastic orange emissive single crystals of 1, 3-diamino-2, 4, 5, 6-tetrabromobenzene as flexible optical waveguides V Gude, PS Choubey, S Das, SB BN, CM Reddy, K Biradha Journal of Materials Chemistry C 9 (30), 9465-9472 , 2021 2021 Citations: 31
Metal‐like Ductility in Organic Plastic Crystals: Role of Molecular Shape and Dihydrogen Bonding Interactions in Aminoboranes A Mondal, B Bhattacharya, S Das, S Bhunia, R Chowdhury, S Dey, ... Angewandte Chemie International Edition 59 (27), 10971-10980 , 2020 2020 Citations: 100
Screening, crystal structures and solubility studies of a series of multidrug salt hydrates and cocrystals of fenamic acids with trimethoprim and sulfamethazine B Bhattacharya, S Das, G Lal, SR Soni, A Ghosh, CM Reddy, S Ghosh Journal of Molecular Structure 1199, 127028 , 2020 2020 Citations: 71
MOST CITED SCHOLAR PUBLICATIONS
Harnessing molecular rotations in plastic crystals: a holistic view for crystal engineering of adaptive soft materials S Das, A Mondal, CM Reddy Chemical Society Reviews 49 (24), 8878-8896 , 2020 2020 Citations: 241
Autonomous self-repair in piezoelectric molecular crystals S Bhunia, S Chandel, SK Karan, S Dey, A Tiwari, S Das, N Kumar, ... Science 373 (6552), 321-327 , 2021 2021 Citations: 183
Metal‐like Ductility in Organic Plastic Crystals: Role of Molecular Shape and Dihydrogen Bonding Interactions in Aminoboranes A Mondal, B Bhattacharya, S Das, S Bhunia, R Chowdhury, S Dey, ... Angewandte Chemie International Edition 59 (27), 10971-10980 , 2020 2020 Citations: 100
Screening, crystal structures and solubility studies of a series of multidrug salt hydrates and cocrystals of fenamic acids with trimethoprim and sulfamethazine B Bhattacharya, S Das, G Lal, SR Soni, A Ghosh, CM Reddy, S Ghosh Journal of Molecular Structure 1199, 127028 , 2020 2020 Citations: 71
Elastic organic semiconducting single crystals for durable all-flexible field-effect transistors: insights into the bending mechanism R Samanta, S Das, S Mondal, T Alkhidir, S Mohamed, SP Senanayak, ... Chemical Science 14 (6), 1363-1371 , 2023 2023 Citations: 70
Temperature‐reliant dynamic properties and elasto‐plastic to plastic crystal (rotator) phase transition in a metal oxyacid salt S Das, S Saha, M Sahu, A Mondal, CM Reddy Angewandte Chemie 134 (8), e202115359 , 2022 2022 Citations: 38
Multidrug salt forms of norfloxacin with non-steroidal anti-inflammatory drugs: solubility and membrane permeability studies B Bhattacharya, A Mondal, SR Soni, S Das, S Bhunia, KB Raju, A Ghosh, ... CrystEngComm 20 (41), 6420-6429 , 2018 2018 Citations: 36
Elastic orange emissive single crystals of 1, 3-diamino-2, 4, 5, 6-tetrabromobenzene as flexible optical waveguides V Gude, PS Choubey, S Das, SB BN, CM Reddy, K Biradha Journal of Materials Chemistry C 9 (30), 9465-9472 , 2021 2021 Citations: 31
Viscoelastic covalent organic nanotube fabric via macroscopic entanglement K Koner, S Das, S Mohata, NT Duong, Y Nishiyama, S Kandambeth, ... Journal of the American Chemical Society 144 (35), 16052-16059 , 2022 2022 Citations: 21
Gas release as an efficient strategy to tune mechanical properties and thermoresponsiveness of dynamic molecular crystals S Das, L Catalano, Y Geerts Small 20 (34), 2401317 , 2024 2024 Citations: 12
Exceptional Thermo-Mechano-Fluorochromism and Nanomechanical Analysis of Mechanically Responsive J and H Type Polymorphic Systems P Deka, S Das, P Sarma, KJ Kalita, RK Vijayaraghavan, CM Reddy, ... Crystal Growth & Design 24 (6), 2322-2330 , 2024 2024 Citations: 10
Non-stoichiometric carbamazepine cocrystal hydrates of 3, 4-/3, 5-dihydroxybenzoic acids: coformer–water exchange T Rajbongshi, KK Sarmah, S Das, P Deka, A Saha, BK Saha, ... Chemical Communications 59 (26), 3902-3905 , 2023 2023 Citations: 10
Tris chelated meridional isomers of Co (III) complexes: Synthesis, crystal structure, protein binding, cytotoxicity studies and DFT/TDDFT calculation D Saren, S Das, A Paul, SS Tat, MK Santra, TK Si, H Puschmann, ... Inorganica Chimica Acta 550, 121423 , 2023 2023 Citations: 9
On the importance of crystal structures for organic thin film transistors G Schweicher, S Das, R Resel, Y Geerts Crystal Structure Communications 80 (10) , 2024 2024 Citations: 7
Heparin‐Induced Dual Mode Luminescence Modulation of Organic Nanoparticles and Efficient Energy Transfer R Biswas, S Das, H Puschmann, S Banerjee Chemistry–An Asian Journal 18 (9), e202300100 , 2023 2023 Citations: 5
rsc. li/chem-soc-rev S Das, A Mondal, CM Reddy, YB Chen, PC Qian, LW Ye Chem. Soc. Rev 49, 8873-8877 , 2020 2020 Citations: 4
Boric acid as supramolecular graphite S Das, K Yadava, CM Reddy, S Saha Chemical Communications 61 (90), 17649-17652 , 2025 2025 Citations: 2
Plasticization of a stiff pharmaceutical solid for better tabletability via cocrystallization: Shape synthons as supramolecular protecting groups A Mondal, B Bhattacharya, H Chen, S Khazaei, S Das, S Bhunia, S Dey, ... Chemical Engineering Research and Design 210, 506-512 , 2024 2024 Citations: 2
Isomorphism in a Series of Five Homologous Compounds A Andotra, S Das, CE Killalea, F Malagreca, C Zuffa, P Pandey, S Khan, ... Crystal Growth & Design , 2026 2026
Control of Polymorphism and Alignment in Photochromic Salicylideneaniline Crystals Grown by Directional Crystallization Y Hagiwara, G Schweicher, S Das, S Hasebe, T Asahi, H Koshima, ... Crystal Growth & Design 25 (7), 2090-2098 , 2025 2025