Crystal structure of 10-ethyl-7-(9-ethyl-9H-carbazol-3-yl)-10H-phenothiazine-3-carbaldehyde

Abstract

In the title compound, a pheno­thia­zine moiety is linked to a planar carbazole unit (r.m.s. deviation = 0.029 Å) by a C—C single bond. Their mean planes are inclined to one another by 27.28 (5)°, and the pheno­thia­zine moiety possesses a typical butterfly structure with a fold angle of 27.36 (9)° between the two benzene rings.

Impact of Peripheral Groups on Phenothiazine-Based Hole-Transporting Materials for Perovskite Solar Cells

“…Herein, we report the facile synthesis of three phenothiazine-based HTMs, shown in Figure a. Phenothiazine has a butterfly symmetrical nonplanar structure . We substitute its 3- and 7- positions by 4,4-dimehtyltriphenylamine, N -ethylcarbazole, and 4,4-dimethoxytriphenylamine as the peripheral groups affording HTMs coded Z28, Z29, and Z30, respectively.…”

“…Phenothiazine has a butterfly symmetrical nonplanar structure. 39 We substitute its 3-and 7positions by 4,4-dimehtyltriphenylamine, N-ethylcarbazole, and 4,4-dimethoxytriphenylamine as the peripheral groups affording HTMs coded Z28, Z29, and Z30, respectively. These peripheral groups are introduced to tune the energy levels, hole mobility, and thermal properties.…”