Abstract
Two hydrogen bonded complexes between 1,8- bis(dimethylamino) naphthalene (DMAN) and 2,6-dihydroxynaphthalene (DHN) in 2:1 and 1:2 ratios were synthesised and studied using FTIR the spectra of the solid 2:1 complex revealed incomplete protonation of DMAN with the appearance of two broad absorptions representing ν(NHN)
+
and ν(OHN) in the ranges 700–400 and 1600–700 cm
−1
respectively, while the 1:2 complex indicated the complete protonation of DMAN with the appearance of two broad absorptions representing ν(NHN)
+
and ν(OHO
-
) in the ranges 700–400 and 1600–700 cm
−1
respectively. On the other hand the IR spectra in acetonitrile indicated that the 1:2 complex is more stable than the 2:1 complex.