Purba, Prioti Choudhury ; Bhattacharyya, Soumalya ; Maity, Manoranjan ; Mukhopadhyay, Sujay ; Howlader, Prodip ; Mukherjee, Partha Sarathi (2019) Linkage induced enhancement of fluorescence in metal–carbene bond directed metallacycles and metallacages Chemical Communications, 55 (57). pp. 8309-8312. ISSN 1359-7345
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Official URL: http://doi.org/10.1039/C9CC04444B
Related URL: http://dx.doi.org/10.1039/C9CC04444B
Abstract
Two new 1,4-dihydropyrrolo[3,2-b]pyrrole based aggregation induced emission (AIE)-inactive di- and tetra-imidazolium salts were employed with Ag(I) for the synthesis of a Ag–carbene bond directed metallacycle (1) and metallacage (2), respectively. Transmetalation of these complexes allowed their facile conversion to their respective Au(I)-metallacycle (3) and metallacage (4). The final assemblies exhibit linkage induced enhancement of fluorescence (LIEF). The free ligands are almost non-fluorescent (ΦF = 3.2, 3.4) in comparison to their metal–carbene counterparts (ΦF up to 32.0). Thus, without using any AIEgen, obtaining high emission efficiencies in complexes AgI–CNHC (1, 2) via linkage is a nice approach towards turn-on fluorescence.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Royal Society of Chemistry. |
| ID Code: | 118604 |
| Deposited On: | 25 May 2021 19:35 |
| Last Modified: | 25 May 2021 19:35 |
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