Here, we are designing and characterizing photochromic supramolecules in order to mimic the function of logic devices. We are targeting a broad range of functions, spanning from simple “on-off” switches, different kinds of latches/flip-flops, over logic gates, to small logic circuits. We have realized the functions of the S/R latch, T latch, D-latch, several two input logic gates, half adder, half subtractor, moleculator, multiplexer, demultiplexer, encoder, decoder, keypad lock, and reversible logic gates on the molecular scale. The research program is
associated to the SUPRA Linnaeus Centre.