Adsorption phenomena of cubane-type tetranuclear Ni(II) complexes with neutral, thioether-functionalized ligands on Au(111)

Spin-Hybrids: A Single-Molecule Approach to Spintronics

“…Our STM studies do not show, however, a periodic surface morphology related to ordered SAMs, but rather an almost featureless surface. In fact, the results provide strong evidence for partial decomposition of the coordination complex upon deposition on the Au(111) surface [12]. Spectroscopic investigations confirm, however, that the magnetic Ni 4 Cl 4n (n = 1 or 2) core remains intact upon chemisorption.…”

“…{Ni 4 } thin films in the monolayer (ML) regime were deposited ex-situ by immersing the previously cleaned Au(111) crystal surface into an oxygen-free 0.5 mM {Ni 4 }-dichloromethane (DCM, CH 2 Cl 2 ) solution, followed by an immersion in pure DCM to remove unbound species and contaminations. The deposition was conducted under argon atmosphere and at room temperature [12].…”

Voltage-induced modulation of the magnetic exchange in binuclear Fe(iii) complex deposited on Au(111) surface

“…[21][22][23] The magnetic coupling between the centers (characterized by the magnetic coupling constant J), ferro-magnetic (FM) or anti-ferromagnetic (AF), determines the complex's spin ground state. Several polynuclear magnetic complexes have been deposited and characterized over different substrates, [24][25][26][27][28] where in some systems, the interaction of the complex with the substrate could drastically modify the magnetic coupling between the metal centers. [29][30][31] Thus, the magnetic coupling is a critical parameter to control at the time of synthesizing new complexes and once they interact with supporting substrates.…”

Synthesis, Structure, and Surface Adsorption Characteristics of a Polynuclear MnII,IV–YbIII Complex

“…Although 1 is paramagnetic, studies of its magnetochemical properties , lay outside the scope of this report, the main goal of which is to identify stable adsorption sites for the type of species presented herein on Au(111) and highly oriented pyrolytic graphite (HOPG). In particular, the charge neutrality, the high stability against thermal degradation in air, a small amount of thioether surface-anchoring groups per metal center, and their spatial orientation make 1 a suitable model for the development of advanced molecule–surface interfaces for electronic and spintronic applications. − It is also noteworthy that the focus on ytterbium as part of polynuclear transition metal–lanthanide complexes is related to our recent studies of Yb III -functionalized polyoxometalate compounds with regard to their structural chemistry, electronic properties, and adsorption on surfaces.…”