X‐Ray Diffraction Studies on Molecular Semiconductors Based on Charge‐Transfer Complexes of Substituted Phenothiazines with 2,3‐Dichloro‐5,6‐dicyano‐p‐benzoquinone

Abstract

AbstractX‐ray powder diffraction data on the molecular semiconductors based on the 1:1 charge‐transfer complexes of the electron donors, viz. phenothiazine (PTZ), 2‐chlorophenothiazine (CPZ), 2‐acetyl phenothiazine (APZ) and 2‐(trifluoromethyl)‐phenothiazine (TPZ) with 2,3‐dichloro‐5,6‐dicyano‐p‐benzoquinone (DDQ) have been reported in this paper. The indexing has been done by Ito's method. All the complexes have been found to have orthorhombic crystal structures. The lattice parameters for the individual complexes are as follows: (i) PTZ‐DDQ: a = 6.020 Å, b = 9.775 Å, c = 24.280 Å; (ii) CPZ‐DDQ: a = 5.830 Å, b = 8.070 Å, c = 20.280 Å; (iii) APZ‐DDQ: a = 5.055 Å, b = 7.955 Å, c = 19.520 Å; (iv) TPZ‐DDQ: a = 5.130 Å, b = 8.195 Å, c = 19.850 Å.