From: Synthesis, crystal structures and supramolecular architectures of square pyramidal Cu(II) complexes containing aromatic chelating N,N’-donor ligands
Complex
Dihedral angle (°) inbetween
the two pyridyl rings of BIPY
1
0.98(9)
4
Cu1
Cu2
Bipy 1
Bipy 2
7.2(3)
1.5(5)
1.7(4)
12.2(5)
5
9.25(19)