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Green Synthesis and Characterization of Crystalline Zinc Phthalocyanine and Cobalt Phthalocyanine Prisms by a Simple Solvothermal Route

Abstract

A facile, environment-friendly and low-cost method for one step synthesis of zinc phthalocyanine (ZnPc) and cobalt phthalocyanine (CoPc) prism-shaped crystals was proposed. The well-defined crystalline prisms (ZnPc, up to 8 mm and CoPc, more than 1 mm) can be grown during a solvothermal process at 160 oC for 6 h. It is noted that the ethanol (pentanol or benzyl alcohol) was used as reaction medium and none of surfactants or other chemical additives was used in this preparation. To the best of our knowledge, this is the first report on the green and direct synthesis from simple raw materials to large ZnPc and CoPc crystals with high quality. Compared to the traditional preparation of MPc solids and their re-crystallization purification by using H2SO4, our method is very convenient, safe and time-efficient. The complete characterizations, including scanning electron microscopy (SEM), transmission electron microscope (TEM), atomic force microscopy (AFM), X-ray single crystal diffractometor, X-ray powder diffractometor, Fourier transform infrared (FT-IR) and Raman spectrometers were performed to measure the molecule structures, crystal structures, and surface morphologies. The predominant growth along [100] direction for ZnPc crystals was determined and the probable crystal growth mechanism was proposed. Moreover, the thermal and photoelectric measurements of ZnPc and CoPc crystals show the excellent thermal stability and photoelectric transformation performance, respectively.

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Publication details

The article was received on 09 Feb 2018, accepted on 04 Apr 2018 and first published on 05 Apr 2018


Article type: Paper
DOI: 10.1039/C8CE00215K
Citation: CrystEngComm, 2018, Accepted Manuscript
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    Green Synthesis and Characterization of Crystalline Zinc Phthalocyanine and Cobalt Phthalocyanine Prisms by a Simple Solvothermal Route

    D. Li, S. Ge, T. Yuan, J. Gong, B. Huang, W. Tie and W. He, CrystEngComm, 2018, Accepted Manuscript , DOI: 10.1039/C8CE00215K

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