Multiple Hydrogen Bond Stabilization of a Sandwich Complex of Sulfate between Two Macrocyclic Tetraamides
Inorganic Chemistry2001Vol. 40(13), pp. 2936–2937
Citations Over TimeTop 10% of 2001 papers
Abstract
A tetraamide macrocycle derived from isophthaloyl dichloride and diethylenetriamine shows extremely high affinities for phosphate and sulfate ions in CDCl3, with log K = 4.66 and 4.50, respectively. Crystallographic findings in the case of sulfate indicate an unusual sulfate sandwich complex, in which a single sulfate ion is held between two macrocyclic amides by hydrogen bonds to eight amides. Two tetra-n-butylammonium ions serve to balance the charge.
Related Papers
- → Evaluated Gas Phase Basicities and Proton Affinities of Molecules; Heats of Formation of Protonated Molecules(1984)1,324 cited
- → Infrared study of the interactions between the different kinds of water molecules present in sepiolite(1975)36 cited
- → Water molecules which apparently accept no hydrogen bonds are systematically involved in C—H.O interactions(1995)32 cited
- → 4-Oxocyclohexanecarboxylic acid: hydrogen bonding in the monohydrate of a δ-keto acid(2004)1 cited
- → Effect of the orientation of the water molecules in the system of hydrogen bonds in the crystal hydrate of m-bromo-N?-(5-nitrofurylidene)benzohydrazide on its sensitivity to light(1990)