Self‐Assembly of TbPc₂ Single‐Molecule Magnets on Surface through Multiple Hydrogen Bonding

Abstract

The complexation between 2-ureido-4[1H]-pyrimidinone (UPy) and 2,7-diamido-1,8-naphthyridine (NaPy) is used to promote the mild chemisorption of a UPy-functionalized terbium(III) double decker system on a silicon surface. The adopted strategy allows the single-molecule magnet behavior of the system to be maintained unaltered on the surface.

A TbPc2 sub-monolayer deposit on a titanium dioxide ultrathin film: magnetic, morphological, and chemical insights

“…However, the analysis of the C1s region indicates a TbPc 2 deposit weakly interacting with the substrate. 16,35,45 This is at variance with previous findings for TbPc 2 or phthalocyanine molecules in direct contact with a bulk TiO 2 substrate where oxidation of the molecular species was observed. [31][32][33][34][35] Such difference in the substrate reactivity could be an indication of the absence of catalytic sites characteristic of many TiO 2 surfaces, such as oxygen vacancies, 30,31 or it can be attributed to a different intrinsic reactivity of the TiO 2 lepidocrocite structure compared to the rutile phase used in our previous investigation.…”

Shining New Light on Multifunctional Lanthanide Single‐Molecule Magnets

“…[7][8][9] Although initial efforts were focused on large systems based on transition metals, [10,11] lanthanides soon emerged as optimal candidates for the preparation of high-performance SMMs. [12,13] Ther ecent discovery of SMMs capable of operating at temperatures close to [14,15] or above that of liquid nitrogen [16] represented am ajor breakthrough in the field of molecular magnetism and cemented their potential in the preparation of next-generation magnetic devices.T he possibility of using SMMs as molecular switches, [17] and the ability to arrange them in patterns over surfaces, [18][19][20][21] further demonstrated their applicative potential. At the sub-micrometre scale,h owever, the addressability of the elements comprising these "nanocircuits" represents achallenging task.…”

Magnetic Modification and the Mechanism of Tb‐Phthalocyanine Single Molecule Magnets Prepared by a High Yield Method

“…To evaluate the atomic compositions, XPS was measured for the sample with Tb/Y = 7:3 to analyze C, N, Tb and Y elements, as shown in Figure S3. There are four main peaks locate at 284.7 eV, 285.7 eV, 286.7eV and 287.7 eV, which are corresponding well to the different positions of the C atoms on the phthalocyanine ring, named as C α , C β , C γ , C δ , respectively . The elemental ratio between N and Ln (Ln = Tb + Y) was evaluated by estimating the integrated area of each component.…”