Structure of anthracenediylidene-bis(1,3-dithiole)–tetracyanoquinodimethane–bis(cyanoformyl)phenyl-malononitrile ylide monohydrate: (Ext-TTF2+).TCNQ.(Y–)2.(H2O)

The crystal structure of the title compound is built from four kinds of molecule: one 7,7,8,8-tetracyano-p-quinodimethane [TCNQ: 2,2'-(2,5-cyclohexadiene-1,4-diylidene)bispropanedinitrile]; two 2-[4-(cyanoformyl)phenyl]malononitrile ylides {Y - :2-[4-(cyanoformyl)phenyl]propanedinitrile ylide}; one extended 2,2',5,5'-tetrathiafulvalenium derivative [Ext-TTF 2+ :2,2'-(9,10-anthracenediylidene)-5,5'-dimethyl-4,4'-bis(methylthio)bis(1,3-dithiole) cation] and one water molecule