LAUSR

The dendritic ligand 2, 4, 6-tris (di-4-chlorobenzamido)-1, 3, 5-triazine 3 supported Zn/Cu (1:1)  4a , 2, 4, 6-tris (di-4-chlorobenzamido)-1, 3, 5-triazine 3 supported Zn/Cu (1:2)  4b , and 2, 4, 6-tris (di-4-chlorobenzamido)-1, 3, 5-triazine 3 supported Zn/Cu (2:1)  4c bimetallic nanoparticles (NPs) were synthesized successfully by following the co-complexation route in which the desired molar ratio of Zn and Cu was confirmed by the obtained results of electron diffraction X-ray and X-ray fluorescence spectroscopy analysis. The average particle size of these NPs was detected as 15–20 nm from transmission electron microscopy investigations and agglomerate spherical surface morphology was found by scanning electron microscopy, whereas the face-centered cubic structure of these bimetallic NPs was observed by X-ray diffraction assessment. Also, the formation of the ligand was proven by IR, 1 HNMR, 13 CNMR, and elemental analysis. Remarkably, the chemoselective oxidation of aromatic alcohols to the corresponding aldehydes or ketones at 25 min and reduction of aromatic nitro substituents to the corresponding aniline at 20 min in aqueous medium at room temperature have been studied by the most effective catalyst Zn/Cu (2:1)  4c NPs among other molar ratios of Zn/Cu (1:1) 4a and Zn/Cu (1:2)  4b NPs under atmospheric air (O 2 ) conditions with good to excellent yields. This green catalytic approach of Zn/Cu (2:1)  4c NPs catalytic was easily recovered by simple filtration and recycled at least five consecutive runs without a noticeable loss of its catalytic effectiveness.