C3i-Symmetric Octanuclear Cadmium Cages: Double-Anion-Templated Synthesis, Formation Mechanism, and Properties

Authors

  • Dr. Jie Sun ,

    1. Key Lab for Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 (P. R. China), Fax: (+86) 531-883-64218
    2. School of Life Science, Ludong University, Yantai, 264025, Shandong (P. R. China)
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    • These authors contributed equally to this work.

  • Dr. Di Sun ,

    1. Key Lab for Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 (P. R. China), Fax: (+86) 531-883-64218
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    • These authors contributed equally to this work.

  • Shuai Yuan,

    1. Key Lab for Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 (P. R. China), Fax: (+86) 531-883-64218
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  • Dr. Dongxu Tian,

    1. State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian 116012 (P. R. China)
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  • Liangliang Zhang,

    1. Key Lab for Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 (P. R. China), Fax: (+86) 531-883-64218
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  • Prof. Xingpo Wang,

    1. Key Lab for Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 (P. R. China), Fax: (+86) 531-883-64218
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  • Prof. Dr. Daofeng Sun

    Corresponding author
    1. Key Lab for Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 (P. R. China), Fax: (+86) 531-883-64218
    • Key Lab for Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 (P. R. China), Fax: (+86) 531-883-64218===

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Abstract

A series of C3i-symmetric bicapped trigonal antiprismatic Cd8 cages [2X@Cd8L6(H2O)6]n Ysolvents (X=Cl, Y=NO3, n=2: MOCC-4; X=Br, Y=NO3, n=2: MOCC-5; X=NO3, Y=NO3, n=2: MOCC-6; X=NO3, Y=BF4, n=2: MOCC-7; X=NO3, Y=ClO4, n=2: MOCC-8; X=CO32−, n=0: MOCC-9), doubly anion templated by different anions, were solvothermally synthesized by means of a flexible ligand. Interestingly, the CO32− template for MOCC-9 was generated in situ by two-step decomposition of DMF solvent. For other MOCCs, spherical or trigonal monovalent anions could also play the role of template in their formation. The template abilities of these anions in the formation of the cages were experimentally studied and are discussed for the first time. Anion exchange of MOCC-8 was carried out and showed anion-size selectivity. All of the cage-like compounds emit strong luminescence at room temperature.

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