Seven-coordinate anion complex with a tren-based urea: Binding discrepancy of hydrogen sulfate in solid and solution states

Avijit Pramanik; Bethtrice Thompson; Trina Hayes; Kimberly Tucker; Douglas R. Powell; Peter V. Bonnesen; Erick D. Ellis; Ken S. Lee; Hongtao Yu; Md. Alamgir Hossain

doi:10.1039/C1OB05052D

Seven-coordinate anion complex with a tren-based urea: Binding discrepancy of hydrogen sulfate in solid and solution states†

Avijit Pramanik,^a Bethtrice Thompson,^a Trina Hayes,^a Kimberly Tucker,^a Douglas R. Powell,^b Peter V. Bonnesen,^c Erick D. Ellis,^a Ken S. Lee,^a Hongtao Yu^a and Md. Alamgir Hossain*^a

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^a Department of Chemistry and Biochemistry, Jackson State University, 1325 J. R. Lynch Street, P.O. Box 17910, Jackson, MS 39212, USA
E-mail: alamgir@chem.jsums.edu
Fax: +1 601-979-3674
Tel: +1 601-979-3748

^b Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK 73019, USA

^c Chemical Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831, USA

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.

Organic & Biomolecular Chemistry

Seven-coordinate anion complex with a tren-based urea: Binding discrepancy of hydrogen sulfate in solid and solution states†

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Seven-coordinate anion complex with a tren-based urea: Binding discrepancy of hydrogen sulfate in solid and solution states

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