Studies of halogen bonding in solution

Mohammed Sarwar

ISBN 10: 3659167398 / ISBN 13: 9783659167393

Published by LAP LAMBERT Academic Publishing Jul 2012, 2012

About this Item

This item is printed on demand - Print on Demand Titel. Neuware -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 designVDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 204 pp. Englisch.

Seller Inventory # 9783659167393

Bibliographic Details

• Title: Studies of halogen bonding in solution
• Publisher: LAP LAMBERT Academic Publishing Jul 2012
• Publication Date: 2012
• Language: English
• ISBN 10: 3659167398
• ISBN 13: 9783659167393
• Binding: Taschenbuch
• Condition: Neu
• Dimensions: 220W x 150H x 13D millimeters 220 millimeters width by 150 millimeters height by 13 millimeters depth
• Weight: 322 grams

About this title

Synopsis

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

About the Author

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