STM – Página 2

A Trapezoidal Octacyanoquinoid Acceptor Forms Solution and Surface Products by Antiparallel Shape Fitting with Conformational Dipole Momentum Switch (ANGEW. CHEM. 2021)

nachomar 24 junio, 2021 24 junio, 2021DFT, Molecules, STM, Surfaces

A new compound (1) formed by two antiparallelly disposed tetracyano thienoquinoidal units has been synthesized and studied by electrochemistry, UV/Vis-NIR, IR, EPR, and transient spectroscopy. Self-assembly of 1 on a Au(111) surface has been investigated by scanning tunneling microscopy. Experiments have been rationalized by quantum chemical calculations. 1 exhibits a…

Surfaces open new routes: unexpected formation of m-PANI oligomers from p-aminophenol (ANGEW. CHEM. 2020)

paqui 21 octubre, 2020 22 abril, 2021DFT, Molecules, Sin categoría, STM, Surfaces

Surfaces never fail to surprise. Once more, they have demonstrated that chemistry on 2D metallic surfaces behaves differently to that on solution (3D). We have shown that highly unspecific solution-based Michael addition transforms into highly selective when carried out on a Pt(111) surface. In this way, we are able to…

Surface symmetry and reactivity rule the room-temperature adsorption of p-aminophenol (J. Phys. Chem. C 2020)

paqui 11 septiembre, 2020 4 diciembre, 2020Molecules, STM, Surfaces

Molecular chemisorption on metal surfaces has attracted great interest over the past decades. Both the characteristics of the adsorbed molecules and the surface properties govern the chemisorption processes. We have studied the role of the nature and symmetry of different metallic surfaces, Cu(110), Cu(111) and Pt(111), on the room-temperature adsorption…

First results of astrophysical relevance obtained with the Stardust (Nat. Astron. 2020)

paqui 8 enero, 2020 2 julio, 2020Astrophysics, Stardust, STM

The first results of astrophysical relevance obtained with the Stardust machine evidence a prevalence of non-aromatic species in the inner regions of circumstellar envelopes Image taken from https://www.bbvaopenmind.com/ciencia/fisica/un-viaje-a-la-ultima-frontera-i-las-atmosferas-de-las-estrellas/ This work is part of the results obtained in the framework of the European project ERC…