About

The Instituto de Ciencia de Materiales de Madrid (ICMM) is an institute of the Consejo Superior de Investigaciones Cientificas (CSIC) (Spanish National Research Council) founded in December 1986, that belongs to the Area of Science and Technology of Materials, one of the eight Areas in which the CSIC divides its research activities.

 

Our mission is to create new fundamental and applied knowledge in materials of high technological impact, their processing and their transfer to the productive sectors at local, national and European scales (the true value of materials is in their use), the training of new professionals, and the dissemination of the scientific knowledge.

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Forthcoming Events

NOV28/10:00

Solid-state Li-ion batteries and their components for future electrochemical energy storage media
Robert Kun  read more

NOV30/12:00

SOME APPLICATIONS OF THE PHYSICS OF EXCEPTIONAL POINTS IN 3D TOPOLOGICAL SEMIMETALS


José González Carmona  read more

DEC11/12:00

Emergent quantum phases in relativistic magnetic oxides
Cesare Franchini  read more

Long-Range Orientational Self-Assembly, Spatially Controlled Deprotonation, and Off-Centered Metalation of an Expanded Porphyrin

Borja Cirera, Olga Trukhina, Jonas Björk, Giovanni Bottari, Jonathan Rodríguez-Fernández, Alberto Martin-Jimenez, Mikhail K. Islyaikin, Roberto Otero, José M. Gallego, Rodolfo Miranda, Tomás Torres and David Ecija

Expanded porphyrins are large-cavity macrocycles with enormous potential in coordination chemistry, anion sensing, photodynamic therapy, and optoelectronics. In the last two decades, the surface science community has assessed the physicochemical properties of tetrapyrrolic-like macrocycles. However, to date, the sublimation, self-assembly and atomistic insights of expanded porphyrins on surfaces have remained elusive. Here, we show the self-assembly on Au(111) of an expanded aza-porphyrin, namely, an “expanded hemiporphyrazine”, through a unique growth mechanism based on long-range orientational self-assembly. Furthermore, a spatially controlled “writing” protocol on such self-assembled architecture is presented based on the STM tip-induced deprotonation of the inner protons of individual macrocycles. Finally, the capability of these surface-confined macrocycles to host lanthanide elements is assessed, introducing a novel off-centered coordination motif. The presented findings represent a milestone in the fields of porphyrinoid chemistry and surface science, revealing a great potential for novel surface patterning, opening new avenues for molecular level information storage, and boosting the emerging field of surface-confined coordination chemistry involving f-block elements.

J. Am. Chem. Soc. 2017

Publications Highlights

ICMM-2017 - Sor Juana Inés de la Cruz, 3, Cantoblanco, 28049 Madrid, Spain. Tel: +34 91 334 9000. info@icmm.csic.es