- A new nickel(II) complex, [NiL]center dot CH3OH, where H2L is 2-phenyl-3,10,18,21-tetraazatetracyclo[20.4.0.0(4,9)center dot 0(12,17)]hexacosa-2,10,12,14,16,22,24,26-octaene-19,20-dionate(2-)
- A new nickel(II) complex [NiL]center dot 1.5CH(2)Cl(2), where H2L is 14,25-dichloro-2,11-diphenyl-tetracyclo[20.4.0.0(4,9).0(12,17)]hexacosa- 2,10,12,14,16,22,24,26-octaene-19,20-dione