Fig. 1

(a) The monoclinic structure of [NH3(CH2)2NH3]CuBr4 crystal at 300 K, and (b) thermal ellipsoids and numbering of the atoms for [NH3(CH2)2NH3]CuBr4 at 300 K (CCDC 2323282).

(a) The monoclinic structure of [NH3(CH2)2NH3]CuBr4 crystal at 300 K, and (b) thermal ellipsoids and numbering of the atoms for [NH3(CH2)2NH3]CuBr4 at 300 K (CCDC 2323282).