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

Feng Xu; Rachel A Scullion; Jun Yan; Haralampos N Miras; Christoph Busche; Antonino Scandurra; Bruno Pignataro; De-Liang Long; Leroy Cronin

doi:10.1021/ja1105514

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

J Am Chem Soc. 2011 Apr 6;133(13):4684-6. doi: 10.1021/ja1105514. Epub 2011 Mar 16.

Authors

Feng Xu¹, Rachel A Scullion, Jun Yan, Haralampos N Miras, Christoph Busche, Antonino Scandurra, Bruno Pignataro, De-Liang Long, Leroy Cronin

Affiliation

¹ WestCHEM, School of Chemistry, The University of Glasgow, Glasgow G12 8QQ, UK.

PMID: 21410161
DOI: 10.1021/ja1105514

Abstract

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.