Emerald coloured crystal of copper complex of barbituric acid (CuB) (C₈H₁₀CuN₄O₉) is grown by conventional gel method. The crystal structure is orthorhombic with space group Fdd₂ and has unit cell dimensions a = 11.6951(7) Å, b = 30.1113(19) Å, c = 7.1767(7) Å and α = β = γ = 90°. Analysis of the crystal by Hall–Williomson plot revealed the strain free nature of the grown crystals. Identification of the functional groups by FTIR and the study of thermal behaviour of the crystal by TGA/DTA were done.The optical band gap is determined as 1.57 eV from UV–visible absorption studies. The photoluminescence study provides information about the structural quality and purity of the crystal. Antibacterial studies of the sample revealed its medicinal applications. The high hardness value of the crystal is identified by Vickers micro hardness test.

通过常规凝胶法生长巴比妥酸（CuB）（C ₈ H ₁₀ CuN ₄ O ₉）的铜配合物的翡翠色晶体。晶体结构为正交晶体，空间群为Fdd ₂且其晶胞尺寸为a = 11.6951（7​​）Å，b = 30.1113（19）Å，c = 7.1767（7）Å和α=β=γ= 90°。通过Hall-Williomson图对晶体进行分析，揭示了生长晶体的无应变性质。通过FTIR鉴定官能团并通过TGA / DTA研究晶体的热行为。通过紫外可见吸收研究确定光学带隙为1.57 eV。光致发光研究提供了有关晶体的结构质量和纯度的信息。样品的抗菌研究表明其在医学上的应用。晶体的高硬度值通过维氏显微硬度测试确定。