Amphiphilic aluminium(III) and gallium(III) corroles

Abstract

The preparation and spectroscopic properties of a series of metallocorroles with polar head groups CHO and CH=C(CN)(COOH) are reported, as well as the X-ray crystal structure of 5,10,15-tris(pentafluorophenyl)corrolatoaluminium(III)bispyridine (triclinic space group (P-1) with unit cell parameters: a = 9.426(1) Å; b = 13.202(1) Å; c = 19.936(1) Å; α = 74.19(1)°; β = 78.47(1)°; γ = 75.75(1)°; V = 2289.57(8) Å^3). Amphiphilic aluminium(III) and gallium(III) corroles exhibit electronic absorption (Soret peaks between 410 and 448 nm; Q-bands between 584 and 638 nm) and fluorescence (band maxima between 634 and 706 nm) at lower energies than their hydrophobic analogs.

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