Alkaline Earth Guests in Polyoxopalladate Chemistry: From Nanocube to Nanostar via an Open‐Shell Structure |
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| Authors: | Peng Yang Yixian Xiang Zhengguo Lin Bassem S Bassil Prof Jie Cao Linyuan Fan Yanxuan Fan Prof Ming‐Xing Li Pablo Jiménez‐Lozano Dr Jorge J Carbó Prof Josep M Poblet Prof Ulrich Kortz |
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| Institution: | 1. Jacobs University, School of Engineering and Science, P.O. Box 750561, 28725 Bremen (Germany) http://www.jacobs‐university.de/ses/ukortz;2. Key Laboratory of Cluster Science, Ministry of Education of China;3. Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry, Beijing Institute of Technology, Beijing 100081 (PR China);4. Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444 (PR China);5. Department de Química Física i Inorgànica, Universitat Rovira I Virgili, Marcel?lí Domingo s/n, 43007‐ Tarragona (Spain) |
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| Abstract: | The three novel, discrete palladium(II)‐oxo clusters CaPd12O8(PhAsO3)8]6? ( CaPd12 ), SrPd12O6(OH)3(PhAsO3)6(OAc)3]4? ( SrPd12 ), and BaPd15O10(PhAsO3)10]8? ( BaPd15 ) 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 PdII‐oxo shell. The unprecedented SrPd12 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 SrPd12 as a promising candidate for noble‐metal‐based catalysis. |
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| Keywords: | cluster compounds palladium polyoxometalates template effect X‐ray diffraction |
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