Alkaline Earth Guests in Polyoxopalladate Chemistry: From Nanocube to Nanostar via an Open‐Shell Structure1. Issue 44 (12th September 2014)

• Record Type: Journal Article
• Authors: Yang, Peng; Xiang, Yixian; Lin, Zhengguo; Bassil, Bassem S.; Cao, Jie; Fan, Linyuan; Fan, Yanxuan; Li, Ming‐Xing; Jiménez‐Lozano, Pablo; Carbó, Jorge J.; Poblet, Josep M.; Kortz, Ulrich
• Is Part Of: Angewandte Chemie international edition. Volume 53:Issue 44(2014)
• Page Start: 11974
• Page End: 11978
• Publication Date: 2014-09-12
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201407090
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The three novel, discrete palladium(II)‐oxo clusters [CaPd₁₂O₈(PhAsO₃)₈]⁶⁻ (<bold>CaPd₁₂</bold>), [SrPd₁₂O₆(OH)₃(PhAsO₃)₆(OAc)₃]⁴⁻ (<bold>SrPd₁₂</bold>), and [BaPd₁₅O₁₀(PhAsO₃)₁₀]⁸⁻ (<bold>BaPd₁₅</bold>) encapsulating alkaline earth metal ions were prepared and fully characterized by a multitude of solution and solid‐state physicochemical techniques. We have discovered a structure‐directing template effect induced by the respective size of the alkaline earth guest ion, which determines the detailed condensation arrangement of the peripheral Pd^II‐oxo shell. The unprecedented <bold>SrPd₁₂</bold> with an open‐shell type structure is of particular importance and reflects a successful strategy for deliberate design of new structural classes of polyoxo‐noble‐metalates. Furthermore, the unusual acetate–water ligand exchange phenomenon renders <bold>SrPd₁₂</bold> as a promising candidate for noble‐metal‐based catalysis.</p> </abstract>