Articolo in rivista, 2021, ENG, 10.1039/d1sc03703j

On-surface synthesis of organocopper metallacycles through activation of inner diacetylene moieties

Cirera, Borja; Riss, Alexander; Mutombo, Pingo; Urgel, José I.; Santos, José; Di Giovannantonio, Marco; Widmer, Roland; Stolz, Samuel; Sun, Qiang; Bommert, Max; Fasel, Roman; Jelínek, Pavel; Auwärter, Willi; Martín, Nazario; Écija, David

Fakultät für Physik, Technische Universität München; IMDEA Nanociencia; Ecole Polytechnique Fédérale de Lausanne; Universidad Complutense de Madrid; University of Bern; Empa - Swiss Federal Laboratories for Materials Science and Technology; Institute of Physics of the Czech Academy of Sciences; Istituto Di Struttura Della Materia, Montellibreti

The design of organometallic complexes is at the heart of modern organic chemistry and catalysis. Recently, on-surface synthesis has emerged as a disruptive paradigm to design previously precluded compounds and nanomaterials. Despite these advances, the field of organometallic chemistry on surfaces is still at its infancy. Here, we introduce a protocol to activate the inner diacetylene moieties of a molecular precursor by copper surface adatoms affording the formation of unprecedented organocopper metallacycles on Cu(111). The chemical structure of the resulting complexes is characterized by scanning probe microscopy and X-ray photoelectron spectroscopy, being complemented by density functional theory calculations and scanning probe microscopy simulations. Our results pave avenues to the engineering of organometallic compounds and steer the development of polyyne chemistry on surfaces.

Chemical science (Camb. 2010. Print) 12 (38), pp. 12806–12811

Keywords

on-surface synthesis, diacetylene, stm, xps

CNR authors

Di Giovannantonio Marco

CNR institutes