Synthesis of 2D MOFs is often sensitive to the reaction conditions like temperature and solvent etc. Cu(II)-5-azidoisophthalate MOF (Cu(II)–5N₃IP) has been synthesized at room temperature as well as under solvothermal conditions. The azide functional group remained stable during solvothermal synthesis at 85 °C. Cu(II)–5N₃IP crystallized in a Kagomé-type structure. Typical Cu₂ paddle-wheels are connected to each other by 5N₃IP ligands in infinite 2D sheets in the (001) plane, featuring 1D infinite channels within each layer. This MOF is used for the adsorption of methylene blue (MB), rhodamine B (RhB), methyl orange (MO), and Congo red (CR). The adsorption is selective to the dimensions, shapes and ionic strengths of the dyes. Cu(II)–5N₃IP exhibited adsorption rates in the order MB > CR > RhB > MO. Cu(II)–5N₃IP is used as a catalyst for aerobic oxidation and Knoevenagel condensation. 3–10 mol% of Cu–5N₃IP selectively catalyzes the oxidation of benzyl alcohol to benzaldehyde in 9–20 h at 60 °C. In Knoevenagel condensation, the reaction of both unsubstituted and substituted benzaldehydes at room temperature was observed at a very low catalyst loading of 3 mol% of MOF within a short time of 3–60 min. This 2D MOF has proved to be more efficient for dye adsorption and the catalytic applications under investigation (such as alcohol oxidation and Knoevenagel condensation) than its analogous 3D or 0D materials.

In this study, the effect of surfactant variation has been investigated on the synthesis, the physical, and electrochemical performance of Mn₃O₄ (M1–M4) nanomaterials. The synthesized nanomaterials were successfully characterized by powder X-ray diffraction analysis, scanning electron microscopy, and energy dispersive X-ray analysis. Synthesized nanomaterials exhibited a tetragonal hausmannite phase (Mn₃O₄) with an average size of 22 nm. The electrochemical performance of these nanomaterials was investigated through cyclic voltammetry. The maximum specific capacitance for M1 was found to be 3.578028 F/g at 5 mV/s scan rate. The relation between power and energy density determined through the Ragone plot was found maximum for synthesized nanomaterials. M1 was found to be an efficient electrode material as compared to others.

New series of three bidentate N, O donor type Schiff bases(L¹)–(L³)were prepared by using ethylene-1,2-diamine with 5-methyl furfural, 2-anisaldehyde, and 2-hydroxybenzaldehyde in an equimolar ratio. These ligands were further complexed with Co(II), Cu(II), Ni(II), and Zn(II) metals to produce their new metal complexes having an octahedral geometry. These compounds were characterized on the basis of their physical, spectral, and analytical data. Elemental analysis and spectral data of the uncomplexed ligands and their metal(II) complexes were found to be in good agreement with their structures, indicating high purity of all the compounds. All ligands and their metal complexes were screened for antimicrobial activity. The results of antimicrobial activity indicated that metal complexes have significantly higher activity than corresponding ligands. This higher activity might be due to chelation process which reduces the polarity of metal ion by coordinating with ligands.