Molecular multifunctionality preservation upon surface deposition for a chiral single-molecule magnet

Abstract

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

Magnetic Behaviour of Mn12-Stearate Single-Molecule Magnets Immobilized on the Surface of 300 nm Spherical Silica Nanoparticles

“…On the other hand, typical butterfly shape, which points to quantum tunnelling of magnetization (QTM), were recognized for all the concentrations [ 20 ]. Here, the QTM is probably influenced by some distortion of magnetic molecules ligand structure upon grafting [ 21 ] or changes in the magnetic anisotropy with respect to the bulk phase [ 22 ].…”

Conductive Self-Assembled Monolayers of Paramagnetic {CoIICo4III} and {Co4IICo2III} Coordination Clusters on Gold Surfaces

“…The implementation of metal coordination complexes with specific paramagnetic and/or redox properties as single molecules or as constituents of two-dimensional molecular monolayers (Yao et al, 2019) into computer memory cells (Linnenberg et al, 2018) is a promising way to keep the miniaturization and sustainability of electronic components from colliding with the so-called “quantum limit” (sub-10-nm regime) valid. At both these levels of molecule–surface interfaces, preservation of the main molecular characteristics (Mitcov et al, 2019) as identified in the bulk state, and avoidance of the agglomerative behavior of coordination compounds after their immobilization on solid support constitute important milestones in the controlled (micro-)spectroscopic addressing of the tunnel junction structures of molecule–electrode hybrid devices. The eventual step to practical devices (Sun et al, 2014) mandates an in-depth understanding of the adsorption, autonomous self-organization, electron charge-/spin-transport characteristics (Al-Owaedi et al, 2017; Bu et al, 2018) and switching mechanisms of mono- and polynuclear complexes of transition metals (Higgins and Nichols, 2018), lanthanides (Dreiser, 2015), and their mixed-metal derivatives (Schmitz et al, 2018a) on conductive and semi-conductive surfaces (Cornia et al, 2011).…”

Octahedral Hexachloro Environment of Dy3+ with Slow Magnetic Relaxation and Luminescent Properties

“…Since the pioneering works on [Mn 12 O 12 (CH 3 CO 2 ) 16 (H 2 O) 4 ], [1] different synthetic strategies have been elaborated to obtain compounds with efficient Single Molecule Magnet (SMM) behaviours, i. e. usable as ultra-small magnetic bit for highdensity data storage, integrated component for spintronics or Qbits for quantum applications. [2][3][4][5][6][7][8][9][10][11] The use of SMM for such applications is strongly hampered by the low temperature necessary for stabilizing the SMM state [7] as well as low chemical stability, especially when integrated onto surfaces, [12][13][14][15] or disentanglement/decoherence problem. [16][17][18][19] Many efforts have initially concerned the elaboration of molecular compounds of high nuclearity to maximize the total spin moment of the system, combined with high anisotropy barrier.…”