A Borromean Weave Coordination Polymer Sustained by Urea−Sulfate Hydrogen Bonding and Its Selective Anion Separation Properties
作者:N. N. Adarsh、Parthasarathi Dastidar
DOI:10.1021/cg901159r
日期:2010.2.3
(2D → 2D) (6,3) Borromeanweavecoordinationpolymer sustained by urea−sulfate hydrogenbonding is formed when N,N′-bis(3-pyridyl)-p-phenylenebisurea (L1) is reacted with ZnSO4·7H2O, whereas the corresponding bis-amide derivative N,N′-bis(3-pyridyl)terephthalamide (L2) gave a coordinationpolymer displaying a 2D corrugated sheet under the identical reaction conditions; sulfate anion can be selectively
with palladium(II) produced single discrete isomeric cages (1, 2, and 3) of Pd2L4 formulation in each case and thereby illustrated ligand-isomerism in coordinationcages. All 16 hydrogen atoms of eight urea moieties present in four ligand strands are delineated completely endohedrally in cage 1 and completely exohedrally in cage 3, whereas cage 2 exhibited half of the urea hydrogens in exohedral locations