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Studies of halogen bonding in solution

Autor Mohammed Sarwar
en Limba Engleză Paperback – 11 sep 2012
Halogen bonding (XB), the interaction between electron deficient halogen atoms and electron donors, is an established non-covalent interaction in the solid and gaseous phases. To overcome the limitations of the understanding of XB, we investigate XB interactions in solution and design anion receptors. At first, a review of XB interaction: theoretical models, studies of XB in solid and gaseous phases and examples in biological systems are discussed. Then linear free energy relationships involving the thermodynamics of XB are studied. The utility of substituent constants and calculated molecular electrostatic potentials of XB donor ability are discussed. DFT calculations are shown to have useful predictive values for trends in halogen bond strength. We also developed XB based new multidentate anion receptors which exhibit significantly higher binding constants than monodentate donors. Using FNMR, the enthalpies and entropies of anion bindings for mono and tridentate receptors were determined and showed a +Ve entropy contribution to anion binding for both receptors in acetone solvent. These findings can allude to utility in organic synthesis, supramolecular chemistry and drug design
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Specificații

ISBN-13: 9783659167393
ISBN-10: 3659167398
Pagini: 204
Dimensiuni: 152 x 229 x 12 mm
Greutate: 0.3 kg
Editura: LAP LAMBERT ACADEMIC PUBLISHING AG & CO KG
Colecția LAP Lambert Academic Publishing

Notă biografică

Mohammed Sarwar received his B.Sc and M.Sc degrees in chemistry from Jahangirnagar University, Bangladesh. Later he received his Ph.D. in 2012 under the supervision of Mark Taylor at the University of Toronto, where his work focused on solution-phase studies of halogen bonding interactions. He is interested in synthesis and supramolecular chemistry