... Dalton Trans., 2005, 3535-3541 Show Compounds Show Chemical Terms. ... Compound, 2, 3·0.8CH 3 CN. λ = 0.71073 Å; T = 150(2) K. Formula, C 21 H 19 Cl 3 Cu 2 N 4 O, C 35 H 27 Cl 2 Cu 2 F 5 N 4 O 2 (C 2 H 3 N) 0.8. ... Crystal system, Monoclinic, Triclinic. Space group, C2/c, P ...