A multiplex electronic switch on the molecular level has been realized by using a tetranuclear FeII complex of the [2×2] grid type. The four metal ions can be switched stepwise between their high-spin and low-spin states by temperature, pressure, and light, thus representing a triple level, triple switch system as illustrated in the picture.
Affiliations
University of Mainz (Germany)Inorganic and Analytical Chemistry
Breuning, E., Ruben, M., Lehn, J.-M., Renz, F., Garcia, Y., Ksenofontov, V., Gütlich, P., Wegelius, E., & Rissanen, K. (2000). Spin crossover in a supramolecular Fe4II [2x2] grid triggered by temperature, pressure and light. Angewandte Chemie (International Edition), 39(14), 2377 and 2504-2507. https://doi.org/10.1002/1521-3773(20000717)39:14<2504::AID-ANIE2504>3.0.CO;2-B (Original work published 2000)