Electron transfer organic compounds are a kind of organic Chromogenic System with special chemical structure.

Due to electron transfer at certain temperature, the molecular structure of the organic matter changes, so that the color change can be realized. The color change material is not only bright color, but also can realize color change from "colourless = = = = colorless" state, which is not possessed by heavy metal complex salt complex and liquid crystalline reversible thermo chromophore.

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