Square-pyramidal iron coordination modules as potential spin switches for the chemisorption on gold
Kaempf H, Daunke D, Heinemann FW, Grohmann A (2008)
Publication Status: Published
Publication Type: Journal article
Publication year: 2008
Journal
Publisher: SPRINGER
Book Volume: 93
Pages Range: 303-311
Journal Issue: 2
DOI: 10.1007/s00339-008-4852-0
Abstract
Octahedral iron(II) complexes of a unique pyridine-derived tetrapodal pentadentate polyamine ligand, 2,6-C5H3N(CMe[CH2NH2](2))(2), show temperature-dependent spin crossover (SCO) depending on the nature of a sixth monodentate ligand L (imidazol or pyridine derivative). For L=1-methylimidazol, the redox behaviour of the complex, as determined by cyclic voltammetry, suggests an accompanying ligand exchange. Pyridine-4-thiol and the disulphides: 4-(2-methyldisulphanyl)pyridine, 4-(2-hexadecyldisulphanyl)pyridine and 1,2-bis([pyridine-4-yl]methyl)disulphane, were studied as mono-dentate ligands L, with a view to enable chemisorption of iron(II) complexes on a gold surface. In the case of pyridine-4-thiol, the participation of the thiolate functional group in iron coordination is difficult to suppress, whereas the disulphides enter into yet unrecorded redox chemistry with iron(II), yielding a di-iron(III) complex containing a persulphide bridge (S-2(2-)).
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APA:
Kaempf, H., Daunke, D., Heinemann, F.W., & Grohmann, A. (2008). Square-pyramidal iron coordination modules as potential spin switches for the chemisorption on gold. Applied Physics A: Materials Science and Processing, 93(2), 303-311. https://doi.org/10.1007/s00339-008-4852-0
MLA:
Kaempf, Holger, et al. "Square-pyramidal iron coordination modules as potential spin switches for the chemisorption on gold." Applied Physics A: Materials Science and Processing 93.2 (2008): 303-311.
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