Patent ID: 6924082

Claim:
Method for information storage and data processing comprising the step of thermo-inducing or photo-inducing double-bond shifts in substituted [4n]-annulenes which are substituted by at least one group comprising an extended conjugated π-electron system which is in conjugation with the π-electron system of the [4n]-annulene core, thus generating transitions between two different conjugation states with at least one substituent, resulting in different UV/VIS spectra of the double-bond shifted isomers of [4n]-annulene, which provides the possibility to use distinct conjugation states (conjugation on-state and conjugation off-state) for information storage and data processing, whereby a carrier system is present that allows the modulation of a multitude of the corresponding [4n]-annulene molecules for the permanent or erasable storage of their corresponding conjugative states.