Ammonia coordination introducing a magnetic moment in an on-surface low-spin porphyrin

Christian Wäckerlin; Kartick Tarafder; Jan Girovsky; Jan Nowakowski; Tatjana Hählen; Aneliia Shchyrba; Dorota Siewert; Armin Kleibert; Frithjof Nolting; Peter M Oppeneer; Thomas A Jung; Nirmalya Ballav

doi:10.1002/anie.201208028

Ammonia coordination introducing a magnetic moment in an on-surface low-spin porphyrin

Angew Chem Int Ed Engl. 2013 Apr 22;52(17):4568-71. doi: 10.1002/anie.201208028. Epub 2013 Mar 19.

Authors

Christian Wäckerlin¹, Kartick Tarafder, Jan Girovsky, Jan Nowakowski, Tatjana Hählen, Aneliia Shchyrba, Dorota Siewert, Armin Kleibert, Frithjof Nolting, Peter M Oppeneer, Thomas A Jung, Nirmalya Ballav

Affiliation

¹ Laboratory for Micro and Nanotechnology, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland.

PMID: 23512489
DOI: 10.1002/anie.201208028

Abstract

Amazing ammonia: The molecular spin state of Ni(II) porphyrin, supported on a ferromagnetic Co surface, can be reversibly switched between spin-off (S = 0) and spin-on (S = 1) states upon coordination and decoordination of the gaseous ligand NH3, respectively (see picture). This finding clearly indicates the possible use of the system as a single-molecule-based magnetochemical sensor and in spintronics.