We demonstrate that the [Yb(trensal)] molecule is a prototypical coupled electronic qubit-nuclear qudit system. The combination of noise-resilient nuclear degrees of freedom and large reduction of nutation time induced by electron-nuclear mixing enables coherent manipulation of this qudit by radio frequency pulses. Moreover, the multilevel structure of the qudit is exploited to encode and operate a qubit with embedded basic quantum error correction.

Simultaneous retention of SMM behaviour and of optical activity is demonstrated upon surface deposition for a chiral SMM.

Using a new polydentate Schiff-base ligand (HL) we isolated three new tetranuclear isostructural lanthanide complexes with the general formula [LnNa(L)(DMF)(HO)(AcO)]·4DMF·2HO [Ln = Dy (1), Ho (2), or Er (3)]. The structural characterization of the complexes reveals that the Na ions are coordinated in the structure which gives them a structure-directing role in the molecule. The magnetic behavior of the systems was investigated by means of SQUID magnetometry which revealed that complex 1 exhibits single molecule magnet behavior at low temperatures which is enhanced by the application of a 2000 Oe static magnetic field. We were able to extract an effective barrier of U = 43(1) K, however, we show that the consideration of an Orbach relaxation mechanism being the dominant is not always correct for lanthanides. On the contrary, we elaborate how in this system the relaxation is caused by a combination of a direct and a Raman process.

A tetranuclear [2 × 2] grid-like manganese(III) Schiff base complex, Mn, has been synthesized and characterized by single-crystal X-ray crystallography. Direct-current magnetization measurements were performed on the system and proved to be insufficient for an accurate magnetic model to be deduced. Combined inelastic neutron scattering (INS) and electron paramagnetic resonance (EPR) experiments provided the necessary information in order to successfully model the magnetic properties of Mn. The resulting model takes into account both the magnitude and the relative orientations of the single-ion anisotropy tensors.