Related Experiment Video
Updated: Jul 18, 2026

High Resolution Physical Characterization of Single Metallic Nanoparticles
Published on: June 28, 2019
RETRACTED: A late-transition metal oxo complex: K7Na9[O=PtIV(H2O)L2], L = [PW9O34]9-
Travis M Anderson1, Wade A Neiwert, Martin L Kirk
1Department of Chemistry, Emory University, Atlanta, GA 30322, USA.
Abstract:
Terminal mono-oxo complexes of the late transition metal elements have long been considered too unstable to synthesize because of repulsion between the oxygen electrons and the mostly filled metal d orbitals. A platinum(IV)-oxo compound flanked by two polytungstate ligands, K7Na9[O=Pt(H2O)L2], L = [PW9O34(9-)], has now been prepared and isolated at room temperature as air-stable brown crystals. X-ray and neutron diffraction at 30 kelvin revealed a very short [1.720(18) angstrom] Pt-O bond and no evidence of a hydrogen atom at the terminal oxygen, ruling out a better precedented Pt-OH complex. Density functional theory and spectroscopic data account for the stability of the Pt(IV)-oxo unit by electron withdrawal into delocalized orbitals of the polytungstates.
Related Concept Videos
Alkali Metals
Table 1: Properties of the alkali metals
Formation of Complex Ions
Properties of Transition Metals
Coordination Compounds and Nomenclature
Extraction: Advanced Methods
Complexometric Titration: Ligands

