title: Seven-coordinate anion complex with a tren-based urea: binding discrepancy of hydrogen sulfate in solid and solution states.
abstract: Structural characterization of a hydrogen sulfate complex with a tren-based urea suggests that the anion is coordinated with six NH···O bonds (d(N···O) = 2.857 (3) to 3.092 (3) Å) and one OH···O bond (d(O···O) = 2.57 (2) Å) from three receptors; however, in solution the anion is bound within the pseudo-cavity of one receptor.
authors.affiliation: Department of Chemistry and Biochemistry, Jackson State University, 1325 J. R. Lynch Street, P.O. Box 17910, Jackson, MS 39212, USA.
authors.forename: Avijit
authors.initials: A
authors.lastname: Pramanik
authors.forename: Bethtrice
authors.initials: B
authors.lastname: Thompson
authors.forename: Trina
authors.initials: T
authors.lastname: Hayes
authors.forename: Kimberly
authors.initials: K
authors.lastname: Tucker
authors.forename: Douglas R
authors.initials: DR
authors.lastname: Powell
authors.forename: Peter V
authors.initials: PV
authors.lastname: Bonnesen
authors.forename: Erick D
authors.initials: ED
authors.lastname: Ellis
authors.forename: Ken S
authors.initials: KS
authors.lastname: Lee
authors.forename: Hongtao
authors.initials: H
authors.lastname: Yu
authors.forename: Md Alamgir
authors.initials: MA
authors.lastname: Hossain
mesh_terms: D000838:Anions / Q000737:chemistry; D002625:Chemistry, Organic; D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000378:metabolism; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D018716:Molecular Mimicry; D015394:Molecular Structure; D033902:Periplasmic Binding Proteins / Q000737:chemistry / Q000378:metabolism; D012996:Solutions; D013431:Sulfates / Q000737:chemistry* / Q000378:metabolism; D014508:Urea / Q000737:chemistry
chemical_list: D000838:Anions; D056831:Coordination Complexes; D033902:Periplasmic Binding Proteins; D012996:Solutions; D013431:Sulfates; C044773:sulfate-binding protein, bacteria; D014508:Urea