Ultrasonic‐Driven Coordination Polymer Based on the Building Block [CuI (CN)₄]³⁻ and Heptane‐1,7‐diamine as a Luminescence Sensor and Efficient Catalyst for Pharmaceutical Wastewater Treatment

The coordination polymer {[Cu 6 (CN) 6 ]·HPD} n , CP 1 ; (HPD = heptane‐1,7‐diamine) was prepared and characterized by single‐crystal and powder X‐ray diffraction, UV–Vis spectroscopy, electron microscopy (TEM and SEM), and elemental analyses. The copper atoms are coordinated by C ≡ N ligands, and both exhibit tetrahedral geometry. Cu1 and Cu2 create the pretty unique cluster structure of two quadruple [Cu 2 (μ 3 ‐CN) 2 ] units exhibiting coprophilic interaction. The building blocks [Cu 3 (CN) 3 ] 2 form fused distorted rectangular rings surrounded with the [Cu 2 (μ 3 ‐CN) 2 ] motifs exhibiting wide voids to accommodate the guest HPD. The structure of 1 indicates the formation of channels with dimensions 5.121–8.469 Ǻ which extend three‐dimensionally creating fused cavity morphology with different shapes. CP 1 was utilized as an efficient sensor for selective quantitative estimation of metal ions (Co 2+ ) and explosives (NB). Advanced oxidation process (AOP) was used as an efficient photocatalyst for the removal of the antibiotic meloxicam (MEL) utilizing AOP in the presence of H 2 O 2 as an oxidant. Scavenge experiments, reusability of catalyst 1 , and mechanism of oxidation were also discussed.