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Controllable Self-assembly of Sandwich-type Mixed (phthalocyaninato)(porphyrinato) Rare Earth Triple-Decker Complexes

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Abstract

Two novel sandwich-type mixed (phthalocyaninato)(porphyrinato) rare earth complexes Tb2[TClPP]2Pc (1) and Tb2[TClPP] Pc2 (2) [Pc = phthalocyaninate, TClPP = meso-tetrakis (4-chlorophenyl) porphyrinate] have been fabricated into nanostructures by a solution-based method. Their self-assembly properties have been comparatively studied by electronic absorption spectroscopy, transmission electron microscope (TEM), X-ray diffraction (XRD) techniques and current–voltage (I–V) measurements. Due to the different number of porphyrin and phthalocyanine ligands interference, the self-assembly of the two molecules results in totally different morphologies in aggregate: one-dimensional (1D) nanoribbon from 1 vs. two-dimensional (2D) nanosheet from 2. The electronic absorption measurements indicated that J-type aggregates have been formed with the increasing red-shifted degree from nanoribbons to nanosheets depending on the competition and cooperation between the inter-molecular π–π interaction and van der Waals for different compounds. Examination by XRD revealed that in the nanostructures of 1 and 2, a dimeric supramolecular structure was formed through an intermolecular π–π interaction and van der Waals between two sandwich-type molecules, which as the building block self-assembles into the target nanostructures. In addition, the nanosheets from 2 were revealed to show excellent semiconducting properties with the conductivity of 3.0 × 10−3 S m−1 in air due to readily π-stacks with adjacent planar molecules enhanced by higher ordered crystalline molecular arrangement.

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Acknowledgments

This work was financially supported by the Natural Science Foundation of China (20871055). University of Jinan is gratefully acknowledged.

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Authors and Affiliations

  1. Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China

    Jian Gao, Dapan Li & Yanli Chen

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  1. Jian Gao
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  2. Dapan Li
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  3. Yanli Chen
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Correspondence to Yanli Chen.

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Gao, J., Li, D. & Chen, Y. Controllable Self-assembly of Sandwich-type Mixed (phthalocyaninato)(porphyrinato) Rare Earth Triple-Decker Complexes. J Inorg Organomet Polym 21, 876–880 (2011). https://doi.org/10.1007/s10904-011-9520-8

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  • DOI: https://doi.org/10.1007/s10904-011-9520-8

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