Patent ID: 8530673

Claim:
A tetrathiafulvalene derivative of Formula (I): wherein each X is independently a carbon atom, or a nitrogen atom, and R 1 to R 8 are each independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted thioalkoxy group when an adjacent X is a carbon atom, R 1 to R 8 each independently do not exist when an adjacent X is a nitrogen atom, and Y 1 and Y 2 are each independently of Formula (II) or (III): wherein R 9 to R 18 are each independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted thioalkoxy group, n is an integer of 1 to 3, and when n is 2 or 3, each R 17 is independently selected and each R 18 is independently selected.