Organic radicals; Open-shell molecules; Spin-delocalization; Helical chirality; Spin coupling; Singlet-triplet gap; Magnetic properties; Conducting properties; Magneto-chiral effects; Spintronics
Čavlović Daniel, Juríček Michal (2019), Molecular Magnetic Switches, in CHIMIA International Journal for Chemistry
, 73(4), 313-316.
Ravat Prince, Šolomek Tomáš, Juríček Michal (2019), Helicenes as Chiroptical Photoswitches, in ChemPhotoChem
, 3(4), 180-186.
Ravat Prince, Šolomek Tomáš, Häussinger Daniel, Blacque Olivier, Juríček Michal (2018), Dimethylcethrene: A Chiroptical Diradicaloid Photoswitch, in Journal of the American Chemical Society
, 140(34), 10839-10847.
Juríček Michal (2018), The Three C's of Cethrene, in Chimia
, 72(5), 322-327.
Šolomek Tomáš, Ravat Prince, Mou Zhongyu, Kertesz Miklos, Juríček Michal (2018), Cethrene: The Chameleon of Woodward–Hoffmann Rules, in The Journal of Organic Chemistry
, 83(8), 4769-4774.
Ravat Prince, Hinkelmann Rahel, Steinebrunner David, Prescimone Alessandro, Bodoky Ina, Juríček Michal (2017), Configurational Stability of Helicenes, in Organic Letters
, 19(14), 3707-3710.
Multifunctional molecule-based systems that take advantage of electron spin in addition to electron charge may one day lead to the next breakthrough in fabrication of information processing devices. For designing and making such systems, materials that contain unpaired electrons are needed. Although past research in this field has relied almost exclusively on the use of inorganic materials, organic materials-on top of being cheaper and lighter-offer the possibility to create new functionalities by taking advantage of virtually an unlimited freedom one has when it comes to molecular design. Organic molecules that carry unpaired electrons can serve as the basic functional unit of a spintronic (= spin + electronic) material, where the spin interactions between unpaired electrons dictate its bulk properties and give rise to physical phenomena such as conductivity and magnetism. A combination of properties can give rise to new functionalities, as in the case of effects that arise from the interplay of chirality and magnetism. These effects, however, are rare and have only been observed on several occasions. To gain a better understanding of these effects, the aim of this project is to develop chiral spin model systems where these phenomena can be investigated systematically, that is, systems were spin interactions between unpaired electrons can be tuned precisely to match a desired feature. Because it remains difficult to control the coupling of spins of unpaired electrons in a bulk material, it is crucial to learn how to manipulate this delicate balance of interactions on a molecular level first. Ultimately, this investigation will deliver a set of principles, which will allow the design of chiral molecule-based materials, where spin interactions and the resulting properties can be switched on and off in the solid state by an external stimulus such as light.