Journal
JOURNAL OF LUMINESCENCE
Volume 182, Issue -, Pages 274-282Publisher
ELSEVIER
DOI: 10.1016/j.jlumin.2016.10.042
Keywords
Aggregation enhanced emission; Mechanochromism: Solid state luminescence; Sensing; DFT calculation
Categories
Funding
- UGC-BSR RFSMS, New Delhi, India [F.4-1/2006(BSR) 5-105/2007(BSR)]
- DST, New Delhi [SB/FT/CS-026/2012]
Ask authors/readers for more resources
1,8-Naphthalimide connected to benzoic acid chloride via methylene group was condensed separately with 3-amino pyridine and 4-amino pyridine and provided compounds 4-(1,3-Dioxo-2,3-dihydro-1Hphenalen-2-ylmethyl)-N-pyridin-3-yl-benzamide 1 and 4-(1,3-Dioxo-2,3-dihydro-1H-phenalen-2-ylmethyl)-N-pyridin-4-yl-benzamide 2. The compounds are characterized by spectral (IR, UV-Visible, H-1 and C-13 NMR) measurements and supported by their X-ray crystallography. Their photoelectron spectroscopy, SEM and TEM measurements are also made. They are found luminescent in DMF solution as well as in the solid state and form nano-aggregates with enhanced emission (AEE) in aqueous-DMF solution. Their AEE behavior depends on the polarity of the solvents. On grinding, crystalline solids 1 and 2 turn to amorphous and the process is reversible on annealing as supported by their powder X-ray diffraction (PXRD) measurements. Both compounds show mechanochromic properties and display multi-stimuli response. Density Functional Theory calculations rationalize their optical data. (C) 2016 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available