Two compounds constructed from Strandberg-type polyoxoanions, metals and organic ligands

<p>Two new hybrid compounds, [Cu(1)(phen)(H<sub>2</sub>O)][Cu(2)(phen)(H<sub>2</sub>O)]([Cu(3)]<sub>0.25</sub>(H<sub>2</sub>O)][P<sub>2</sub>Mo<sub>5</sub>O<sub>23</sub>]·3.75H<sub>2</sub>O (<b>1</b>) and [Cu(en)<sub>2</sub>]<sub>1.5</sub>[P<sub>2</sub>Mo<sub>5</sub>O<sub>23</sub>]<sub>2</sub>·(enH<sub>2</sub>)<sub>3</sub>·2H<sub>2</sub>O (<b>2</b>) (phen = 1,10-phenanthroline, en = ethylenediamine), have been hydrothermally synthesized and characterized by IR, UV–Vis spectroscopy, X-ray photoelectron spectroscopy (XPS), powder XRD analyses, TG analyses, cyclic voltammogram analyses, elemental analyses, and single crystal X-ray diffraction analyses. Single crystal X-ray diffraction analyses reveal that the two compounds have a 1-D chain structure formed by Strandberg-type POMs and TMCs with –A–B–C–B–A–B–C–B– linking mode, then further extend into a 2-D layer structure through <i>π</i>⋯<i>π</i> or hydrogen bond interactions.</p>