Please use this identifier to cite or link to this item: http://dx.doi.org/10.14279/depositonce-5485
Main Title: Thiocyanate anchors for salt-like iron(II) complexes on Au(111): promises and caveats
Author(s): Stock, Philipp
Erbe, Andreas
Buck, Manfred
Wiedemann, Dennis
Ménard, Hervé
Hörner, Gerald
Grohmann, Andreas
Type: Article
Language Code: en
Abstract: The formation of self-assembled monolayers (SAMs) on Au(111) from solution has been investigated for two ionic iron(II) complexes of the type [Fe(L)](BF4)(2), where L is tripodal hexadentate and contains three thiocyanate anchor groups. The ligands (L1, L2; donor set: N-6) are obtained by Schiff base condensation of a tripodal triamine (L1: tris-(2-aminoethyl)amine, 'ten'; L2: 1,1',1 ''-trimethyl(thiophosphoryl)trihydrazide) with 5-(4-thiocyanatobutoxy) pyridine-2-carbaldehyde. Layers of the complexes adsorbed on Au(111) from methanol solution have been characterised using scanning tunnelling microscopy (STM), infrared reflectance absorbance (IRRAS), X-ray photoelectron (XPS) and UV/Vis reflectance spectroscopies, as well as ellipsometry. Complex [Fe(L1)](BF4)(2) deposits intact on a gold surface and retains its optical addressability. Elaboration of this result may provide access to a new class of self-assembled layers, employing salt-like tripodal coordination compounds with thiocyanate anchors. The second complex, [Fe(L-2)](BF4)(2), which contains a sulphur atom in the ligand backbone, is not sufficiently stable under the same conditions.
URI: http://depositonce.tu-berlin.de/handle/11303/5892
http://dx.doi.org/10.14279/depositonce-5485
Issue Date: 2014
Date Available: 13-Sep-2016
DDC Class: 540 Chemie
Subject(s): responsive surfaces
Au(111)
Iron(II)
nitrogen ligands
magnetic properties
Sponsor/Funder: DFG, SFB 658, Elementarprozesse in molekularen Schaltern auf Oberflächen
Usage rights: Terms of German Copyright Law
Journal Title: Zeitschrift für Naturforschung
Publisher: De Gruyter
Publisher Place: Berlin
Volume: 69
Issue: 9-10
Publisher DOI: 10.5560/ZNB.2014-4159
Page Start: 1164
Page End: 1180
EISSN: 1865-7117
ISSN: 0932-0776
Appears in Collections:Technische Universität Berlin » Fakultäten & Zentralinstitute » Fakultät 2 Mathematik und Naturwissenschaften » Institut für Chemie » Fachgebiet Anorganische Chemie - Festkörper- und Materialchemie » Publications

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