title: Re-examination of the structure of calcichrome (calcion) and its complexation with polyaromatic hydrocarbons in water.
abstract: A non-cyclic tetrameric structure has been suggested for calcichrome (calcion). This structure is consistent with its mass spectrum, proton NMR spectrum, elemental composition and complexing ability with polyaromatic hydrocarbons in water. The stability constants of the 1:1 complexes formed between calcichrome and seven polyaromatic hydrocarbons in water at room temperature have been measured.
authors.affiliation: School of Chemical Sciences, Universiti Sains Malaysia, Minden, Penang, Malaysia.
authors.forename: B L
authors.initials: BL
authors.lastname: Poh
authors.forename: M
authors.initials: M
authors.lastname: Khairuddean