The EPR properties of novel nitroxide-spin-labelled rotaxanes containing a tetrathiafulvalene (TTF) unit and a cyclobis(paraquat-p-phenylene) ring are described. The rotaxanes were spin labelled both at the thread and the wheel. Single-electron oxidation of the TTF unit resulted in a significant through-space magnetic interaction between different radical units. In some cases, rotaxanation is proved to have dramatic effects on such magnetic interactions.
Synthesis and characterization of a doubly spin-labelled electrochemically driven molecular shuttle / Bleve, Valentina; Franchi, Paola; Gualandi, Lorenzo; Romano, Francesco; Mezzina, Elisabetta*; Lucarini, Marco. - In: ORGANIC CHEMISTRY FRONTIERS. - ISSN 2052-4110. - STAMPA. - 5:10(2018), pp. 1579-1585. [10.1039/c8qo00187a]
Synthesis and characterization of a doubly spin-labelled electrochemically driven molecular shuttle
Bleve, Valentina;Franchi, Paola;Gualandi, Lorenzo;Romano, Francesco;Mezzina, Elisabetta
;Lucarini, Marco
2018
Abstract
The EPR properties of novel nitroxide-spin-labelled rotaxanes containing a tetrathiafulvalene (TTF) unit and a cyclobis(paraquat-p-phenylene) ring are described. The rotaxanes were spin labelled both at the thread and the wheel. Single-electron oxidation of the TTF unit resulted in a significant through-space magnetic interaction between different radical units. In some cases, rotaxanation is proved to have dramatic effects on such magnetic interactions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
