CCDC no.: 1527568The crystal structure is shown in the figure. Tables 1 and 2 contain details on crystal structure and measurement conditions and a list of the atoms including atomic coordinates and displacement parameters.
Source of materialAll reagents and solvents obtained from commercial sources were used without further purification. 2,2′-sulfonyldipyrazine was obtained following a reported procedure [1]. 2,2′-sulfonyldipyrazine (44 mg, 0.2 mmol) was dissolved in methanol with stirring and cupric acetate anhydrous (40 mg, 0.22 mmol) was added subsquently. The mixture was stirred at room temperature for four hours. After filtration, the solution was slowly evaporated in air to give