Spin in Organic Cocrystals.

Organic spintronics has caused a huge revolution in creating highly efficient low-power circuits. Spin manipulation in organic cocrystals has become a promising strategy to uncover more chemicophysical properties for diverse applications. In this Minireview, we summarize the recent advancements of spin properties in organic charge-transfer cocrystals, and briefly describe the possible mechanisms behind them. Beside the known spin properties (spin multiplicity, mechanoresponsive spin, chiral orbit and spin-crossover) in binary/ternary cocrystals, other spin phenomena in radical cocrystals and spin transport are also summarized and discussed. Hopefully, deep understanding of current achievements, challenges and perspectives will offer the clear direction for the introduction of spin in organic cocrystals.