The ligand Me8[14]diene, L, in its free state as well as in the dihydroperchlorate form,
L.2HClO4, coordinates copper(ll) in different salts to yield a series of [CuLXx]
Xy(H2O)z
complexes
where X = NO3, ClO4, NCS, Cl and Br; x and y may have values of 0 or 2 and z = 0, 1 or 2. The
complex, [CuL(ClO4)2].2H2O
is found to undergo axial ligand substitution reactions with SCN-, NO3
and Cl- to give a variety of substitution derivatives: [CuL(ClO4)m
Xn]
where X = NCS, NO3
and Cl; m = 0 or 1, and n = 1 or 2. The complexes .have been characterised on the basis of analytical,
spectroscopic, magnetic and conductance data. The anti-fungal activities of the ligand and its
complexes have been investigated against a range of phytopathogenic fungi.