Charge transfer molecular solids [diaqua tetrabenzo (b,f,j,n,) {1,5,9,13} t
etraazacyclohexadecine] Ni(II) and Cu(Il) bisanthraflavates were synthesize
d and characterized by IR, Mass Spectrometry, TGA, and X-ray diffraction on
single crystals. Unit cell dimensions (Angstrom) a = 12.291(1), c = 14.574
(1) Angstrom and a = 12.434(1), c = 14.066(1) Angstrom for Cu(II) and Ni(II
) derivatives, respectively, space group P4(2)/n in both cases. The obtaine
d compounds show expected chemical and structural similarities. Tetraazamac
rocycles are surrounded individually by a zig-zag, ribbon-like motif extend
ing in the crystal by head-to-tail hydrogen bonding of monosubstituted anth
raflavates. Electric conductivities were measured by the four points method
as pellets from the variation of electric current through the sample as a
function of temperature, for fixed voltages in the ohmic regime. Preliminar
y results indicate low conductivity values at room temperature but semicond
uctivity behaviour in the temperature range -150 to 170 degrees C.