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Constructing Mixed Corrole-Phthalocyanine Europium Triple-decker Complexes involving meso-substituted trans-A2B-Corrole

Abstract

With the view to exploiting novel rare earth heteroleptic corrole-phthalocyanine triple-decker complexes towards potential applications in the fields of information storage devices and nonlinear optical materials, three europium triple-decker complexes containing one meso-substituted trans-A2B-corrole and two phthalocyanine macrocycles have been designed and synthesized. The investigated compounds are represented as Eu2[Pc(OC4H9)8]2[Cor(p-R1Ph)2(p-R2Ph)], where Pc = phthalocyanine, Cor = corrole, (p-R1Ph) and (p-R2Ph) are the substituents on the 5,15-meso and 10-meso positions of the corrole macrocycle, respectively, R1 is H and R2 is a CH3O, F or Cl substituent on the para-position of the meso-phenyl ring. These novel europium triple-decker complexes were characterized by spectroscopic and electrochemical techniques in nonaqueous media. Under excitation at 633 nm, a typical Raman marker band of the phthalocyanine dianions Pc2- is observed at 1505 cm-1, resulting from the coupling of the C=C (pyrrole) and C=N (aza group) stretchings. The UV-visible spectra and redox potentials of each triple-decker were analyzed as a function of the sum of Hammett substituent constants for the para-substituents on meso-phenyl rings of the corrole macrocycle.

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Publication details

The article was received on 16 Nov 2017, accepted on 05 Jan 2018 and first published on 08 Jan 2018


Article type: Paper
DOI: 10.1039/C7NJ04446A
Citation: New J. Chem., 2018, Accepted Manuscript
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    Constructing Mixed Corrole-Phthalocyanine Europium Triple-decker Complexes involving meso-substituted trans-A2B-Corrole

    G. Lu, C. He, Y. Fang, L. Wang and W. Zhu, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C7NJ04446A

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