Ternary complex [Cu(L-Ile)(TATP)(H2O)](ClO4)] was synthesized and characterized by molar conductivity, rotational analysis, spectroscopic (IR and UV-Vis) and X-ray diffraction methods, where L-Ile=L-Isoleucine, and TATP=1,4,8,9-tetraazatriphenylene. The complex crystallizes in triclinic space group P1 with two molecules in a unit cell of dimensions a=8.240 3(9) nm, b=11.914 9(13) nm, c=13.436 0(15) nm, α=109.136(2)°, β=101.101(2)°, γ=106.302(2)°. V=1.209 2(5) nm3, Z=2, Dc=1.589 Mg·m-3, μ=1.132 mm-1,R1=0.036 9, wR2=0.098 0. The crystal contains two independent was synthesized and characterized by molar conductivity, rotational analysis, spectroscopic (IR and UV-Vis) and X-ray diffraction methods, where L-Ile=L-Isoleucine, and TATP=1,4,8,9-tetraazatriphenylene. The complex crystallizes in triclinic space group P1 with two molecules in a unit cell of dimensions a=8.240 3(9) nm, b=11.914 9(13) nm, c=13.436 0(15) nm, α=109.136(2)°, β=101.101(2)°, γ=106.302(2)°. V=1.209 2(5) nm3, Z=2, Dc=1.589 Mg·m-3, μ=1.132 mm-1,R1=0.036 9, wR2=0.098 0. The crystal contains two independent [Cu(L-Ile)(TATP)(H2O)]+ complexes for Cu1 and Cu2, respectively, having essentially the same distorted square-pyramidal structure, where each Cu ion is coordinated with two nitrogen atoms of TATP and the amino nitrogen atom and one carboxylate oxygen atom of L-Ile in the equatorial positions and one water oxygen atom at an axial position. Furthermore, the primary studies on the interaction between the complex and calf thymus DNA were also performed by electronic absorption spectroscopy and viscosity methods. CCDC: 244231. Ternary complex [Cu (L-Ile) (TATP) (H2O)] (ClO4)] was synthesized and characterized by molar conductivity, rotational analysis, spectroscopic (IR and UV-Vis) and X-ray diffraction methods, = L-Isoleucine, and TATP = 1,4,8,9-tetraazatriphenylene. The complex crystallizes in triclinic space group P1 with two molecules in a unit cell of dimensions a = 8.240 3 (9) nm, b = 11.914 9 ) nm, c = 13.436 0 (15) nm, α = 109.136 (2) °, β = 101.101 (2) °, γ = 106.302 (2) °. V = 1.209 2 = 1.589 Mg · m-3, μ = 1.132 mm-1, R1 = 0.036 9, wR2 = 0.098 0. The crystal contains two independently and constituted by molar conductivity, rotational analysis, spectroscopic (IR and UV- Vis) and X-ray diffraction methods, where L-Ile = L-Isoleucine, and TATP = 1,4,8,9-tetraazatriphenylene. The complex crystallizes in triclinic space group P1 with two molecules in a unit cell of dimensions a = 8.240 3 ( (2) °, β = 101.101 (2) °, γ = 106.302 (2) °. V = 1.209 2, c = 13.436 0 (15) nm, (5) nm 3, Z = 2, Dc = 1.589 Mg · m -3, μ = 1.132 mm -1, R1 = 0.036 9 and wR2 = 0.098 0. The crystal contains two independent [Cu (L-Ile) (TATP) ] + complexes for Cu1 and Cu2, respectively, have essentially the same distorted square-pyramidal structure, where each Cu ion is coordinated with two nitrogen atoms of TATP and the amino nitrogen atom and one carboxylate oxygen atom of L-Ile in the equatorial positions and one water oxygen atom at an axial position. The primary studies on the interaction between the complex and calf thymus DNA were also performed by electronic absorption spectroscopy and viscosity methods. CCDC: 244231.