2,9-Dichlorodithioketoquinacridone (DTQ-Cl: Fig.1(a)) is a thionated derivative of industrially important 2,9-dichloroquinacridone used as colorants in painting and imaging industries. Crystallographic and electronic characterization has been carried out on dimethylacetamide-solvated
single crystals: DTQ-Cl/(DMA)2. There are two crystal Modifications I and II which crystallize in the space group of
Tomonori Hoki, Takatoshi Senju, Jin Mizuguchi, "Crystal and Electronic Structure of 2,9-Dichlorodithioketoquinacridone - Polymorph of Dimethylacetamide-Solvated Crystals -" in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP20), 2004, pp 528 - 533, https://doi.org/10.2352/ISSN.2169-4451.2004.20.1.art00004_2