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Table 4 The dihedral angles (°) between two pyridyl rings of 2-2’-bipy in complexes 1,4 and 5

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

Bipy 1

Bipy 2

7.2(3)

1.5(5)

1.7(4)

12.2(5)

5

Cu1

9.25(19)