Spectroscopic and thermal studies on the charge transfer complexes formed between morpholine as donor with p-chloranil and 7,7',8,8'-tetracyanoquinodimethane

Charge-transfer (ct) complexes formed between morpholine (morp) as donor with chl and tcnq as acceptors have been studied spectrophotometrically. the synthesis and characterization of morpholine ct-complexes of p-chloranil, [(morp)(chl)] and 7,7',8,8'-tetracyanoquinodimethane, [(morp)(tcnq)] were described. these complexes are readily prepared from the reaction of morp with chl and tcnq within chcl3 and/or meoh solvents. ir, uv–vis techniques, elemental (c, h, and n) and thermal analyses (tg/dtg) characterize the two morp charge-transfer complexes. benesi–hildebrand and its modification methods were applied to the determination of association constant (k), and molar extinction coefficient (ᵋ).