Intercalation of the copper(II) phthalocyanine tetrasulfonate anion (CuPcTs4–) into basic copper(II) salts

Abstract

Intercalation of the copper(II) phthalocyanine tetrasulfonate (CuPcTs^4–) anion by exchange into basic copper salts with NO₃^– or CH₃CO₂^– as the interlayer anion has been studied. No intercalation took place with the basic copper(II) nitrate Cu₂(OH)₃NO₃(BCN). In contrast, CuPcTs^4– anions were readily intercalated into basic copper(II) acetate Cu₂(OH)₃CH₃CO₂(BCA) such that the anions were orientated with the molecular planes approximately perpendicular to the Cu₂(OH)₃⁺ layers of the host material. This difference in the intercalation properties between BCN and BCA may be mainly related to the difference between their gallery heights (3.4 and 5.8 Å, respectively) and the intersectional diameter (5.5 Å) of the CuPcTs^4– anion.