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Ali SM, Sk S, Sengupta A, Santra S, Barman S, Sepay N, Molla MR. Anion-assisted supramolecular polymerization of luminescent organic π-conjugated chromophores in a moderately polar solvent: tunable nanostructures and their corresponding effects on electronic properties. NANOSCALE 2023; 15:14866-14876. [PMID: 37646513 DOI: 10.1039/d3nr04090a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Supramolecular polymers of π-conjugated organic chromophores have emerged as promising candidates in organic electronics because of their dynamic and highly ordered molecular organization. Herein, we demonstrate the formation of luminescent, highly conducting supramolecular polymers of a functionalized naphthalimide π-chromophore-based organic semiconductor in a moderately polar organic solvent (tetrahydrofuran) by overcoming solute-solvent H-bonding via assistance from fluoride anions. The polymerization is exclusively guided by the synergistic effects of cascade H-bonding (F-⋯H-N- of primary amines, followed by -CO⋯H-N- of amides), π-π stacking and hydrophobic interactions. An increasing molar equivalent of anions leads to a morphology transition from 1D nanowires to 2D nanosheets via nanotubes and nanorings, but above a particular threshold of the same anion, depolymerization-mediated disruption of long-range order and formation of non-luminescent spherical particles was observed. Such significant impacts of anions in supramolecular polymerization-depolymerization were utilized in modulating the electronic properties of this naphthalimide-based organic semiconductor.
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Affiliation(s)
- Sk Mursed Ali
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata, West Bengal-700009, India.
| | - Sujauddin Sk
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata, West Bengal-700009, India.
| | - Ankita Sengupta
- Department of Electronic Science, University of Calcutta, 92 A. P. C. Road, Kolkata, West Bengal-700009, India
| | - Subrata Santra
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata, West Bengal-700009, India.
| | - Souvik Barman
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata, West Bengal-700009, India.
| | - Nayim Sepay
- Department of Chemistry, Lady Brabourne College, P-1/2, Suhrawardy Ave, Kolkata, West Bengal-700017, India
| | - Mijanur Rahaman Molla
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata, West Bengal-700009, India.
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Ghosh A, Dubey SK, Patra M, Mandal J, Ghosh NN, Saha R, Bhattacharjee S. Coiled‐Coil Helical Nano‐Assemblies: Shape Persistent, Thixotropic, and Tunable Chiroptical Properties. ChemistrySelect 2022. [DOI: 10.1002/slct.202103942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Angshuman Ghosh
- Department of Chemistry Kazi Nazrul University Asansol 713340 West Bengal India
- TCG Lifescience, Block BN, Sector V, Saltlake Kolkata 700156 West Bengal India
| | - Soumen Kumar Dubey
- Department of Chemistry Kazi Nazrul University Asansol 713340 West Bengal India
| | - Maxcimilan Patra
- Department of Chemistry Kazi Nazrul University Asansol 713340 West Bengal India
| | - Jishu Mandal
- CIF Biophysical Laboratory CSIR-Indian Institute of Chemical Biology Jadavpur Kolkata 700032 West Bengal India
| | - Narendra Nath Ghosh
- Department of Chemistry University of Gour Banga Mokdumpur- 732103 West Bengal India
| | - Rajat Saha
- Department of Chemistry Kazi Nazrul University Asansol 713340 West Bengal India
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