Crystal structure and the standard molar enthalpy of formation of a coordination polymer [Cu(nip)(phen)]n

A coordination polymer [Cu(nip)(phen)]n was hydrothermally synthesized by the reaction of Cu(NO3)2 with 5-nitroisophthalic acid and phen. Single-crystal structure analysis showed that the complex crystallized in the monoclinic space group P21/c; a = 10.6566(13); b = 12.5931(15); c = 13.0514(16) Å; β = 95.474(2)°, V = 1743.5(4) Å3; Z = 4. The standard molar enthalpy of formation of the complex was determined to be −554 ± 11 kJ mol−1.