Abstract
An acid sodium salt of 2-nitro-terephthalic acid was synthesized and its molecular and crystal structures were studied. The crystallographic parameters of the new compound are as follows: the chemical formula – C8H8NNaO8, Cambridge Crystallographic Database Code: 2332574, molecular weight – 269.14, the temperature during measurement of the crystal parameters – 100.0 K, monocrystalline dimension 0.18mm×0.21mm×0.15mm, Radiation CuKα 𝜆= 1.54184, the minimum value of theta 4, 0250, the maximum value of theta 749580, the number of obtained reflections 9169, the number of independent reflections 2040, syngony – triclinic, space-group P-1, the specific gravity of the monocrystal d= 1.716 g/cm3, unit cell parameters – a = 6.5034 Å, b = 7 .4080 Å, c= 11.1553 Å, the volume of the crystal lattice V=520.79 Å3, the number of molecules in the lattice Z=2, the axial angles in the triclinic system α = 92.6990°, β= 100.1720°, γ= 99.0840°, final R factor = 0.0267. Metallic sodium ionically coordinates with the ligand. Distance between atoms – Na(1)–O(1)=2,3357 Å, Na (1)–O(4)=2,3236 Å, Na(1)–О(7)= 2,3855 Å.