Sadhika Khullar

2,4,6‐trinitrophenol (TNP) is a nitroaromatic compound widely used in the manufacturing of explosives, dyes, and pesticides. Due to its highly toxic nature and extensive industrial applications, TNP has emerged as a common contaminant, posing a serious threat to human health and the environment. Therefore, it becomes necessary to develop an efficient method for its selective and ultrafast detection. This work reports the room temperature synthesis of two nickel‐(II) based probes, NiP1 and NiP2 by one‐pot self‐assembly approach using Ni(OAc) ₂ , trans‐aconitic acid as an organic linker, 4,4‐bipyridine ( NiP1) and DPT used as organic ligands ( NiP2). The synthesized probes were characterized using numerous analytical techniques such as elemental analysis (CHNS), attenuated total reflactance spectroscopy (ATR), thermogravimetric analysis (TGA), powder x‐ray diffraction (PXRD), and field emission scanning electron microscopy (FESEM). The electrochemical behaviour of these probes were determined by various electrochemical methods as cyclic voltammetry, differential pulse voltammetry and chronoamperometry (i‐t) studies. Notably, NiP2 exhibited better limit of detection (72.13 ppb) and sensitivity for TNP than NiP1 (limit of detection: 224 ppb) in 0.1 M PBS solution. Furthermore, NiP2 exhibited good selectivity, stability, and robustness and can be used for detection and monitoring of environmental detriment materials.

Flexible dual-linker-based three-component self-assembly provides a new paradigm for constructing functional 2D and 3D MOFs and understanding their structure–property-relationships in heterogeneous catalysis and environmental remediation.

A sustainable approach has been devised for synthesizing quinaldic acids. Moreover, we have also demonstrated the synthetic utility of alkyl 2-chloro-4-oxobut-2-enoates, quinoline-2-carboxylates, for synthesizing variety of valuable scaffolds.

This study reports a series of cobalt( ii ) and zinc( ii ) based coordination compounds that were investigated for their antibacterial and antioxidant activities.

Covalent organic frameworks (COFs) have emerged as efficient photo- and electrocatalysts owing to their ordered structures, high porosity, tunable electronic structures, and modular functionality.

The Oxygen Evolution Reaction (OER) is considered to be one of the most important processes for energy storage and conversion applications. However, due to its sluggish kinetics it becomes extremely crucial to design and develop cost‐effective, stable and highly efficient electrocatalysts. Herein, we report two lead(II) based coordination polymers (CPs) {[Pb ₂ (TPBN)(TDC) ₂ ].3H ₂ O} _n ( CP1 ), and {[Pb ₂ (TPBN)(FDC) ₂ ].H ₂ O} _n ( CP2 ) synthesized via self‐assembly at ambient conditions in good yields (where TPBN= N,N′,N′′′,N′′′′‐tetrakis‐(2‐pyridylmethyl)‐1,4‐diaminobutane, H ₂ TDC=2,5‐2,5‐thiophenedicarboxylic acid, and H ₂ FDC=2,5‐furandicarboxylic acid. Their 3D structures were determined by Single‐crystal X‐ray diffraction (SCXRD) studies. The bulk purity and thermal stability of CP1 and CP2 were studied by powder X‐ray diffraction studies and thermogravimetric analysis, respectively. Both the CPs showed remarkable catalytic activity for the OER. With a current density of 15 mA cm ⁻² , for both CP1 and CP2 , overpotentials of 570 mV and 630 mV with tafel slope values of 112 mV dec ⁻¹ , and 178 mV dec ⁻¹ respectively for CP1 and CP2 in 1.0 M alkaline (KOH) solution was obtained. It is notable that the difference in their catalytic performance – CP1 is better than CP2 , can be attributed to the subtle single heteroatom in the dicarboxylate ring (S in thiophene and O in furan, respectively).