Physics Abstracts

Abstract. 2014 The reaction between tetrathiafulvalene (TTF) and tetracyanoethylene (TCNE) yields two polymorphs (03B1 and 03B2) both having formula [(TTF)203B4+2(TCNE)203B4-2] with similar molecular struc-ture. Both polymorphs display a stack structure of the type···(TTF-TTF)(TCNE-TCNE)(TTF-TTF) (TCNE-TCNE)·· · but they differ in crystal structure for hydrogen bonding system and lamellar sheets. These two CT complexes possess an high resistivity ( ~ 109 03A9.cm) and a degree of charge-transfer of 03B4 = 0.54e estimated through the C-S bond length. Microsc. Microanal. Microstruct. Classificatio