Journal
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
Volume 19, Issue 11, Pages 1603-1612Publisher
SPRINGERNATURE
DOI: 10.1039/d0pp00232a
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Funding
- UGC
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In this paper, the synthesis of a naphthalene diimide (NDI) derivative with a donor-acceptor-donor (D-A-D) molecular structure substituted with a long alkyl chain (12 carbons) containing naphthalene hydrazide at the imide position is reported. The reduced emission quantum yield (phi(f) = 0.01-0.03) of the NDI derivative in various solvents indicates the perturbation of the electronic state of pi-electron deficient NDI (A) by the peripheral naphthalene (D) units. The investigation of the influence of the alkyl chain and naphthalene substituent on the self-assembling properties of the NDI derivative reveals an isodesmic mode of self-assembly in a chloroform/methylcyclohexane (CHCl3/MCH, 1 : 9, v/v) mixture. The self-assembling nature of the NDI derivative also results in the formation of an organogel in the CHCl3/MCH (1 : 9, v/v) mixture, and gel formation is well-comprehended by techniques such as P-XRD, rheological studies, and FT-IR measurements. Furthermore, radical anion (NDI-) formation of pi-acidic NDI was used as a sensing tool for hydrazine by a fluorescence turn-on (phi(f) = 0.12) method in the solution (DMSO), film, and gel state with a detection limit of 284.1 ppb in DMSO and 32 ppb in the gel state.
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