Category Archives: publications

We describe a very simple and efficient gram-scale synthetic pathway toward Boranils substituted directly on the boron center by 1,1′-bi-2-naphthol derivatives (BINOL). Properties of the resulting BINOL-Boranils were investigated by nuclear magnetic resonance (NMR), UV–visible, fluorescence, electronic circular dichroism (ECD), and circularly polarized luminescence (CPL) spectroscopies. Insight into the molecular structure is also provided based… Read More

We report the preparation of a helical complex and its study in molecular junctions. We show that the SAMs of this racemic compound present electrically robust behaviour which will pave the way for future studies on the CISS effect with analogous enantiopure compounds. Isabel Coloma, Thierry Buffeteau,  Gilles Pecastaings, Santiago Herrero, Elizabeth Hillard, Patrick Rosa, … Read More

A 1D coordination compound made of a photochromic dithienylethene linker and [Dy(Tp2−py)F]+ units (with Tp2−py=tris(3-(2-pyridyl)pyrazolyl)hydroborate) and having tetrakis[3,5-bis(trifluoromethyl)phenyl]borate counterions is reported. Full photoconversion from the closed isomer to the open isomer of the dithienylethene within single crystals allow for monitoring of the transformation by photocrystallography. Magnetic slow relaxation as well as magnetic hysteresis are observed… Read More

In the submonolayer regime, fullerene molecules tend to form compact islands on dense-packed metal surfaces. On Cu(111), these islands exhibit various types of corrugation patterns caused by a compressive epitaxial stress and an atomic-scale reconstruction of the metal surface. Following a strategy we introduced in a previous study [Phys. Rev. Lett. 131, 186201 (2023)], we… Read More

We report here the reversibility and bistability of the switching behavior in an azobenzene derivative induced by the bias applied by a scanning-tunneling microscopy (STM) tip, at low temperature and in ultra-high vacuum environment. This cis-to-trans and trans-to-cis switching were observed during STM imaging in either polarity at +2 V or −2 V, on a… Read More

There has been considerable interest in building switching functions into self-assembled monolayers with switching actuated by external stimuli such as light, electrical current, heat, pressure or chemical changes. In this study, dual switching functionality has been built into azobenzene based molecular monolayers. Switching behaviour has been compared for unsubstituted azobenzene monolayer adsorbates and two other… Read More