Browsing by Author "Calderon-Kawasaki, Kenichi E."
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Buried solvent determines both anion-binding selectivity and binding stoichiometry with hydrogen-bonding receptors
Burns, Dennis H.; Calderon-Kawasaki, Kenichi E.; Kularatne, Sumith (American Chemical Society, 2005-04-01)The crystal structure of a tetraurea picket porphyrin-chloride anion complex has previously shown the anion to be situated between two adjacent ureas and hydrogen bonded via four NH protons (J. Am. Chem. Soc. 1998, 120, ... -
Synthesis of neutral anion receptor 5,10-bis-(2-(4-fluorophenyl)phenylurea)-15,20-diphenylporphyrin and its characterization
Calderon-Kawasaki, Kenichi E. (2006-05)Binding studies were performed with a bisurea-picket porphyrin host receptor (a,a)-5,10- Bis-(2-(4-fuorophenyl)phenylurea)-15,20-diphenylporphyrin (1a) and TBA salts as its guest. Previously our group reported1 on the ... -
Synthesis of urea picket porphyrins and their use in the elucidation of the role buried solvent plays in the selectivity and stoichiometry of anion binding receptors
Calderon-Kawasaki, Kenichi E.; Kularatne, Sumith; Li, Yue He; Noll, Bruce C.; Scheidt, W. Robert; Burns, Dennis H. (American Chemical Society, 2007-11-23)The synthesis of alpha,alpha-5,10-diurea and alpha,alpha,alpha-5,10,15-triurea picket porphyrins are detailed in this report. In previous reports, these porphyrins, along with alpha,alpha,alpha,alpha-5,10,15,20-tetraurea ...