Synthesis, structure, oxygen evolution reaction (OER) and visible-light assisted organic reaction studies on AMTeBO (A = Ba and Pb; M = Mg, Zn, Co, Ni, Cu, and Fe).

Compounds with the general formula AMTeBO (A = Ba and Pb; M = Mg, Zn, Co, Ni, Cu, and Fe) have been synthesised solid-state techniques and characterised. The structure exhibits MBO layers connected by TeO octahedra giving rise to a three-dimensional structure with voids, where Ba ions reside. Substitution of Mg by transition elements (M = Co, Ni, and Cu) in BaMgTeBO and (BaPb)MgTeBO gives rise to interesting colored compounds.

Synthesis, Photophysical, Electrochemical, and Non-linear Optical Properties of Triaryl Pyrazole-based B-N Coordinated Boron Compounds.

We report here a set of triaryl pyrazole based B-N coordinated boron compounds (11-17) synthesized by electrophilic aromatic borylation strategy. All the pyrazole boron compounds were thoroughly characterized using multinuclear NMR spectroscopy, LC-MS, and single crystal X-ray diffraction analysis (for 12-17). The photoluminescence measurements of 11-17 revealed that the emission peak maxima were tuned based on the substitution on N-phenyl.

Thiophene-fused boracycles as photoactive analogues of diboraanthracenes.

The construction of thiophene-fused analogues of diboraanthracenes with different aryl substituents through boron-mercury exchange followed by the nucleophilic replacement of the chlorines of dichlorodiboradithiophene 2 with Grignard reagents is reported. These diboradithiophenes exhibited unusual photophysical and electrochemical properties. They all undergo photoisomerisation, which can be traced using photophysical and H NMR spectroscopy studies.

Synthesis of pyrazole anchored three-coordinated organoboranes and their application in the detection of picric acid.

Three-coordinated organoboron fluorophores bearing 3,5-diphenyl pyrazoles have been synthesized. The pyrazole anchored boron fluorophores show selective fluorescence quenching response to trinitrophenol (or) picric acid (PA) and have the ability to discriminate picric acid over other analytes. We investigated nonlinear optical (NLO) properties of these three-coordinated organoboron compounds (in solutions) in the presence and absence of PA.

Synthesis of π-extended B ← N coordinated phenanthroimidazole dimers and their linear and nonlinear optical properties.

Intramolecular B ← N coordinated fluorophores have shown potential applications in optoelectronics and as sensors due to their unique photophysical properties. In this work, we report the synthesis and characterization of π-conjugated boron doped phenanthroimidazole dimers. All the π-conjugated B ← N coordinated phenanthroimidazole dimers exhibited high quantum yields in solution (up to 99%) and moderate quantum yields in the solid state (up to 51%).