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Polyhedral Organic Microcrystals: From Cubes to Rhombic Dodecahedra

Authors

  • Xiujuan Zhang,

    1. Functional Nano & Soft Materials Laboratory, SooChow University (China)
    2. Center of Super-Diamond and Advanced Film (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR (China)
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  • Cheng Dong Prof.,

    1. National Laboratory for Superconductivity, Institute of Physics, Chinese Academy of Science, Beijing (China)
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  • Juan Antonio Zapien,

    1. Center of Super-Diamond and Advanced Film (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR (China)
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  • Shafiq Ismathullakhan,

    1. Center of Super-Diamond and Advanced Film (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR (China)
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  • Zhenhui Kang,

    1. Center of Super-Diamond and Advanced Film (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR (China)
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  • Jiansheng Jie,

    1. Center of Super-Diamond and Advanced Film (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR (China)
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  • Xiaohong Zhang Prof.,

    1. Nano-Organic Photoelectronic Laboratory and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing (China)
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  • Jack C. Chang Prof.,

    1. Functional Nano & Soft Materials Laboratory, SooChow University (China)
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  • Chun-Sing Lee Prof.,

    1. Center of Super-Diamond and Advanced Film (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR (China)
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  • Shuit-Tong Lee Prof.

    1. Center of Super-Diamond and Advanced Film (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR (China)
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  • This work was supported by the Research Grants Council of Hong Kong SAR, China (CityU101608) and a Strategic Research Grant (7002275) of City University of Hong Kong. X.H.Z. thanks the National Basic Research Program of China (973 Program; nos. 2006CB933000, 2007CB936000) and the National Natural Science Foundation of China (no. 50825304), X.J.Z. also thanks the National Natural Science Foundation of China (no. 50903059).

Abstract

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Many facets: A controlled synthesis results in high-symmetry small-molecular organic microcrystals with shapes that range from cubes through truncated cubes to rhombic dodecahedra (see picture). Morphological control was achieved by changes in solubility, which substantially alters the growth rate in the 〈100〉 direction relative to that in the 〈110〉 direction. Changes in morphology also lead to different optical properties of the crystals.

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