Electrostatic self-assembly of quaternized 2,(3)-tetra(oxo-pyridine) phthalocyaninato chloroindium(III) with a series of tetrasulfonated phthalocyanines |
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Authors: | Reama C George Mahmut Durmu Gabriel O Egharevba Tebello Nyokong |
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Institution: | aDepartment of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria;bDepartment of Chemistry, Gebze Institute of Technology, Kocaeli, Turkey;cDepartment of Chemistry, Rhodes University, Grahamstown, South Africa |
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Abstract: | The self-assembly of oppositely charged phthalocyanines, fabricated using quaternized 2,(3)-tetra(oxo-pyridine) phthalocyaninato chloroindium (III) (QInPyPc) as the positively charge molecule and a series of tetrasulfonate phthalocyanine (MTSPc), M = 2H, Mn, Fe, Co and Ni as negatively charged molecules are reported. The self-assembly results in the formation of heteroaggregates. The metallated sulfonated phthalocyanines form nanorod and nanoleaf shaped structures as evidenced by transmission electron microscopy (TEM). The UV–Vis spectra showed blue shifted Q bands, suggesting that these structures were in a face-to-face arrangement. The Raman spectra of the heteroaggregates showed shifting compared to the spectra of the precursors. |
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Keywords: | Phthalocyanines Raman spectroscopy Aggregates Electrostatic interaction Self-assembly |
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