1021948-74-2Relevant academic research and scientific papers
Sulfate recognition by persistent crystalline capsules with rigidified hydrogen-bonding cavities
Custelcean, Radu,Remy, Priscilla,Bonnesen, Peter V.,Jiang, De-En,Moyer, Bruce A.
, p. 1866 - 1870 (2008)
Locked up: The sulfate anion is selectively encapsulated into rigid hydrogen-bonded capsules upon crystallization of a simple and flexible urea-functionalized ligand in the presence of Mg2+ ions and water (see structure; sulfate: space-filling).The resulting framework persists in the presence of different-shaped anions, allowing the shape selectivity of hydrogen-bonding hosts to be evaluated, and providing a simple way to separate the environmentally relevant sulfate from highly competitive mixtures of aqueous anions.
Sulfate ion encapsulation in caged supramolecular structures assembled by second-sphere coordination
Wu, Biao,Liang, Jianjun,Yang, Jin,Jia, Chuandong,Yang, Xiao-Juan,Zhang, Hongrui,Tang, Ning,Janiak, Christoph
, p. 1762 - 1764 (2008)
A tripodal tris(3-pyridylurea) receptor (L) assembles with metal sulfate salts MSO4 (M = Mn, Zn) to afford supramolecular cages [SO 4?L2] that encapsulate the SO42- ion via multiple hydrogen bonds in a three-dimensional structure held by second-sphere coordination; 1H NMR and negative-ion mode ESI-MS spectra reveal significantly strong sulfate binding in solution. The Royal Society of Chemistry.
