Phys.org June 11, 2024
Metal phthalocyanines are topical objects of ongoing research and particularly interesting due to their magnetic properties. However, while the current focus lies almost exclusively on spin-Zeeman-related effects, the high symmetry of the molecule and its circular shape suggests the exploitation of light-induced excitation of 2-fold degenerate vibrational states in order to generate, switch, and manipulate magnetic fields at the nanoscale. The underlying mechanism is a molecular pseudorotation that can be triggered by infrared pulses and gives rise to a quantized, small, but controllable magnetic dipole moment. Researchers in Austria investigated the optical stimulation of vibrationally induced molecular magnetism and estimated changes in the magnetic shielding constants for confirmation by future experiments… read more. Open Access TECHNICAL ARTICLE
Graphical abstract. Credit: J. Am. Chem. Soc. 2024, 146, 21, 14620–14632, May 14, 2024