title: Anion Cluster: Assembly of Dihydrogen Phosphates for the Formation of a Cyclic Anion Octamer.
abstract: Structural characterization of a dihydrogen phosphate complex of triprotonated tris[2-(2-thienylmethylamino)ethyl] amine shows that eight dihydrogen phosphate anions are assembled around the host by strong interactions of H-bond donors and acceptors to form a new type of cyclic anion octamer as (H(2)PO(4) (-))(8), an analogy of cyclic water octamer. The presence of an anion cluster has also been identified by electrospray ionization mass spectrometry and (31)P NMR experiments.
authors.affiliation: Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States.
authors.forename: Md Alamgir
authors.initials: MA
authors.lastname: Hossain
authors.forename: Muhammet
authors.initials: M
authors.lastname: Işıklan
authors.forename: Avijit
authors.initials: A
authors.lastname: Pramanik
authors.forename: Musabbir A
authors.initials: MA
authors.lastname: Saeed
authors.forename: Frank R
authors.initials: FR
authors.lastname: Fronczek