Re-examination of the structure of calcichrome (calcion) and its complexation with polyaromatic hydrocarbons in water

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...

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Veröffentlicht in:	Talanta (Oxford) 1996-10, Vol.43 (10), p.1727-1731
Hauptverfasser:	Poh, Bo-Long, Khairuddean, Melati
Format:	Artikel
Sprache:	eng
Schlagworte:	Atomic and molecular physics Bond strengths, dissociation energies Calcichrome Calcion Chemistry Complexation Exact sciences and technology Kinetics and mechanisms Molecular properties and interactions with photons Organic chemistry Physics Polyaromatic hydrocarbons Properties of molecules and molecular ions Reactivity and mechanisms
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Beschreibung
Zusammenfassung:	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.
ISSN:	0039-9140 1873-3573
DOI:	10.1016/0039-9140(96)01955-8