The 4-amino-1,8-naphthalimide-Tröger's base fluorophore, TBNap-TPy, adorned with phenyl-terpyridine moiety was synthesised and assessed for its aggregation-induced emission (AIE) behaviour. TBNap-TPy was further employed as a fluorescent sensor for the discriminative sensing of π-electron-deficient nitroaromatic; the TBNap-TPy displaying the largest fluorescence quenching with high selectivity for picric acid, a harmful environmental pollutant widely used in the dye industries. This journal is © The Royal Society of Chemistry.

Shanmugaraju Sankarasekaran

Department of Chemistry

J.M. Delente

D. Umadevi

O. Kotova

G.W. Watson

T. Gunnlaugsson

Indian Institute of Technology Palakkad&nbsp;(IIT Palakkad or IIT PKD) is a public autonomous&nbsp;engineering&nbsp;and&nbsp;research&nbsp;institute located in&nbsp;Palakkad,&nbsp;Kerala. It was&nbsp;one of the five new&nbsp;IITs&nbsp;proposed in the&nbsp;2014 Union budget of India. The campus was inaugurated on 3 August 2015. The institute has 94 faculty, 978 students, and 63 non-teaching staffs.

IT Palakkad currently offers four-year Bachelor of Technology (B.Tech) and two years MS programmes in 8 different engineering disciplines including&nbsp;Computer Science, Electrical, Mechanical, Civil among others.

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IIT Palakkad

Chemical Communications

The solvothermal synthesis and structural characterization of two new supramolecular coordination polymers featuring a unique V-shaped ligand bis-[N-(3-pyridyl)methyl)]-9,18-methano-1,8-naphthalimide-[b,f][1,5]diazocine (TBNap), are reported. The ligand TBNap was synthesized as a racemic mixture and the molecular structure was analyzed crystallographically. TBNap showed a positive solvatochromism effect which was further supported by DFT calculations illustrating the D-π-A type fluorophore effects within the ligand structures. TBNap was further employed as a potential fluorescence probe for the discriminative sensing of structurally assorted antibiotics. A strong fluorescence quenching and preferential binding affinity were realized for nitro-containing antibiotics, i.e., Furazolidone, Nitrofurantoin and Nitrofurazone. The solvothermal reaction of TBNap with Cd(OAc)2‧2H2O afforded a one-dimensional coordination polymer (TB-CP-1, poly-[Cd(TBNap)(OAc)2]). Similarly, reaction between TBNap and CdCl2.4H2O in DMF-C2H5OH rendered a 4,4’-2D coordination sheet (TB-CP-2, poly-[CdCl2(TBNap)]·DMF). The extended polymeric structures are further propagated into 3D supramolecular network through multiple face-to-face π-π interaction. © 2021 Informa UK Limited, trading as Taylor & Francis Group.

Fulltext

Supramolecular Chemistry

Synthesis, structural characterization, antibiotics sensing and coordination chemistry of a fluorescent 4-amino-1,8-naphthalimide Tröger’s base supramolecular scaffold

Aggregation induced emission (AIE) active 4-amino-1,8-naphthalimide-Tröger's base for the selective sensing of chemical explosives in competitive aqueous media

Journal	Data powered by TypesetChemical Communications
Publisher	Data powered by TypesetRoyal Society of Chemistry
ISSN	13597345
Open Access	No