STM investigations of Au(111) electrodes coated with vitamin B12 derivatives

Szőcs, E.; Durrer, L.; Luginbühl, Reto; Simic, Nina; Viana, Ana S.; Abrantes, L.M.; Keese, Reinhart; Siegenthaler, H.

doi:10.1016/j.susc.2005.10.018

Cited by 10 publications

(3 citation statements)

References 36 publications

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“…The surface of the coated gold electrodes, obtained in the conventional way, was first analyzed by time-of-flight-secondary ion mass spectroscopy (TOF-SIMS) and ESCA. Further evidence for the formation of a self-assembled monolayer is provided by the in situ ellipsometric results and the detailed STM measurements (20)- (21). The ex situ und in situ STM experiments of 5 on gold show the formation of a surface layer with a packing density and structure which is most likely controlled by the three-dimensional arrangement of the large cobyrinate head groups.…”

Section: Self-assembled Monolayers Of Cobamide-c10-disulfide 5 On Aumentioning

confidence: 89%

The Quest for Electrodes Coated with Vitamin B12 Derivatives

et al. 2007

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The electrochemical control of the redox reactions of vitamin B12 and derivatives thereof plays an important role for the in vivo investigations of the B12 dependent biological transformations. While most of these studies were performed in solution, electrodes coated with appropriate B12 derivatives are of more recent interest. A survey of our results in preparing electrodes bearing B12 derivatives is given. Structural features of the surface coating are discussed. Some of the electrodes show catalytic activity for the reduction of oxygen.

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Section: Self-assembled Monolayers Of Cobamide-c10-disulfide 5 On Aumentioning

confidence: 89%

The Quest for Electrodes Coated with Vitamin B12 Derivatives

et al. 2007

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“…40 The STM (scanning tunneling microscopy) analysis of the surface coating will be reported elsewhere. 49 Selected data: Experimental and analytical data for compounds 4, 5, 8a, 8b (R f , mp, IR, 1 H NMR, 13 C NMR, MS, correct elemental analysis), 10a (IR, 1 H NMR, 13 C NMR, TOF-MS) and 10b ( 1 H NMR, 13 C NMR) may be obtained from the author of correspondence.…”

Section: Tof-sims Analysesmentioning

confidence: 99%

Synthesis of Disulfides Containing a Corrinoid Head Group for Preparation of Self-Assembled Monolayers

Mendonça¹,

Luginbühl²,

Siegenthaler³

et al. 2005

Synlett

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“…For the formation of self assembled mononlayers (SAM) on Au the B 12 derivatives 4 and 5 were prepared [6]. These disulfides were readily immobilized on Au(111) electrode surfaces [7]. The structural and spatial arrangements of the coatings at the electrode substrate were investigated by scanning tunneling microscopy (STM) in air and in aqueous NaClO 4 solution.…”

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confidence: 99%