Synthesis and crystal structure of a copper complex with (E)-2-(4-(1H-1,2,4-triazol-1-yl)benzylidene)-3,4-dihydronaphthalen-1(2H)-one ligand

The title compound, C₃₅H₂₃CuF₆N₃O₅S₂ (1), was synthesized by the reaction of Cu(tta)₂ and L¹, (L¹ = (E)-2-(4-(1H-1,2,4-triazol-1-yl)benzylidene)-3,4-dihydronaphthalen-1(2H)-one) in the dichloromethane solution. It crystallizes in the monoclinic, space group P2₁/c with a = 33.8388(5), b = 9.3874(2), c = 21.8194(4) Å, β = 95.522(2), V = 6898.9(2) ų, Z = 8, D_x = 1.554 Mg/m³, F(000) = 3272, µ = 0.834 mm^–1, R₁ = 0.0639, wR₂ = 0.1637. The copper(II) ion of 1 is in a distorted square-pyramidal environment with four O atoms of the two tta ligands and one N atom of triazole ligand L¹. Single-crystal X-ray diffraction data revealed that the hydrogen bonds, weak C–H···π and π···π interactions in the crystals link the coordination units to form 3D supramolecular structures.