6533b829fe1ef96bd1289966

RESEARCH PRODUCT

A supramolecular heteropolyoxopalladate {Pd15} cluster host encapsulating a {Pd2} dinuclear guest: [Pd(II)2⊂{H7Pd(II)15O10(PO4)10}](9-).

Christoph BuscheJun YanHaralampos N. MirasLeroy CroninDe-liang LongBruno PignataroFeng XuAntonino ScandurraRachel A. Scullion

subject

ChemistryStereochemistrySupramolecular chemistryGeneral ChemistryBiochemistryBinding constantCatalysisIonCrystallographyColloid and Surface ChemistryX-ray photoelectron spectroscopyCluster (physics)TitrationStoichiometry

description

A high-nuclearity polyoxopalladate compound, [Pd(II)(2)⊂{H(7)Pd(II)(15)O(10)(PO(4))(10)}](9-) {Pd(II)(17)}, comprising a {Pd(15)} host occupied by a {Pd(2)} guest and the parent pristine "empty" [H(7)Pd(II)(15)O(10)(P(V)O(4))(10)](13-) {Pd(15)} cluster have both been prepared and characterized by single-crystal X-ray crystallography, (31)P NMR, CSI-MS, and XPS. The encapsulated {Pd(2)} has a short Pd(II)-Pd(II) distance within the {Pd(15)} host. Solution studies indicate that the empty host and filled guest complex are in equilibrium with each other, and UV titrations revealed a binding constant of ca. 10(3) for the guest Pd(II) ions, with a binding stoichiometry of almost 2.

10.1021/ja1105514https://pubmed.ncbi.nlm.nih.gov/21410161