journal article·2022Open access

On-surface synthesis of Mn-phthalocyanines with optically active ligands

Amelia Domínguez-Celorrio, Carlos Garcia-Fernandez, Sabela Quiroga, Peter Koval, Veronique Langlais, Diego Peña, Daniel Sánchez-Portal, David Serrate, Jorge Lobo-Checa

Nanoscale· Volume 14· Issue 22

Abstract

The synthesis of novel organic prototypes combining different functionalities is key to achieve operational elements for applications in organic electronics. Here we set the stage towards individually addressable magneto-optical transducers by the on-surface synthesis of optically active manganese-phthalocyanine derivatives (MnPc) obtained directly on a metallic substrate. We created these 2D nanostructures under ultra-high vacuum conditions with atomic precision starting from a simple phthalonitrile precursor with reversible photo-induced reactivity in solution. These precursors maintain their integrity after powder sublimation and coordinate with the Mn ions into tetrameric complexes and then transform into MnPcs on Ag(111) after a cyclotetramerization reaction. Using scanning tunnelling microscopy and spectroscopy together with DFT calculations, we identify the isomeric configuration of two bi-stable structures and show that it is possible to switch them reversibly by mechanical manipulation. Moreover, the robust magnetic moment brought by the central Mn ion provides a feasible pathway towards magneto-optical transducer fabrication. This work should trigger further research confirming such magneto-optical effects in MnPcs both on surfaces and in liquid environments.
Source: openalex_inverted_index · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Molecular Junctions and Nanostructures · Surface Chemistry and Catalysis · Quantum and electron transport phenomena

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain

Centre d'Elaboration de Materiaux et d'Etudes Structurales – Centre National de la Recherche Scientifique, Toulouse, France

Centro de Física de Materiales CSIC/UPV-EHU-Materials Physics Center, Manuel Lardizabal 5, E-20018 San Sebastián, Spain

Donostia International Physics Center, Paseo Manuel de Lardizabal 4, E-20018 San Sebastian, Spain

Centro de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain

Simune Atomistics S.L., Avenida Tolosa 76, 20018, San Sebastian, Spain

Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain

Laboratorio de Microscopías Avanzadas, Universidad de Zaragoza, E-50018, Zaragoza, Spain

Funding

Agencia Estatal de Investigación · Ministerio de Economía y Competitividad · Ministerio de Ciencia e Innovación · Euskal Herriko Unibertsitatea · Ministerio de Ciencia y Tecnología · Gobierno de Aragón · Horizon 2020 Framework Programme · Xunta de Galicia · Eusko Jaurlaritza · European Regional Development Fund

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