Pyridyl-substituted imidazoquinolines are highly fluorescent probes and are useful for the design of smart materials. A hitherto unknown pyridyl-quinazoline] has been designed and structurally confirmed by single-crystal X-ray crystallography. The presence of C−H•••π and π•••π interactions in CP 1 makes it a threedimensional (3D) supramolecular structure. The excellent luminescent behavior of CP 1 is selectively quenched by trinitrophenol (TNP) even in the presence of potentially intrusive nitroaromatic explosives (NAEs). A limit of detection (LOD) of 2.75 × 10 −7 M for TNP is achieved (3σ/m). In addition, the CP 1 displays electrical conductivity on an electronic device with the metal−semiconductor (MS) junction. Current vs voltage (I−V plot) correlation reveals the substantial enhancement of electrical conductivity upon illumination (Λ: 1.12 × 10 −3 S m −1 (dark), 6.33 × 10 −3 S m −1 (light)) along with a decrease in energy barrier (Φ B : 0.53 (dark), 0.42 (light)). The plots of log V vs log I show a non-Ohmic feature at a higher voltage (log V ≥ 0) both in the dark and the light phase, which is the characteristic of a Schottky diode barrier (SDB).

At the age of sustainable development, exploration of multifunctional materials is of high priority for their economic benefits and environmental suitability. A stable luminescent coordination polymer, [Zn2(tdc)4(pdiq)3] (1), (pdiq =...

Pyridyl-substituted imidazoquinoline, a potent fluorescent framework, is advantageous to architect multifunctional coordination networks for sensing and fabricating emergent electrical conductors. In this work, a Cd(II)-based one-dimensional (1D) coordination polymer (1D CP), [Cd-(glu) , has been structurally confirmed by single-crystal X-ray crystallography. The H-bonding and π•••π interactions built a three-dimensional (3D) supramolecular structure that strongly emits at 416 nm in acetonitrile suspension. Potentially intrusive nitroaromatics (NAs) and trinitrophenol (TNP) selectively quench the strong emission of 1, and the highest quenching is noted in the case of TNP. A detection limit (limit of detection (LOD)) of 1.51 × 10 −7 M for TNP is determined. The band gap (3.31 eV) of 1 recognizes semiconducting behavior, and an electronic device is fabricated. The correlation of current vs voltage (I−V plot) reveals a substantial non-ohmic electrical conductivity of 1 (Λ: 1.10 × 10 −5 S m −1 ) along with a low energy barrier (Φ B : 0.69), and the series resistance (R s ) becomes 6.21 kΩ.