• Árnadõttir, Líney
• Glebe, Ulrich
• Baio, Joe E.
• Siemeling, Ulrich
• Weidner, Tobias

Abstract

<p>Subphthalocyaninatoboron complexes with six long-chain alkylthio substituents in their periphery are applicable for the formation of self-assembled monolayers (SAMs) on gold. Such films are prepared from solution with the axially chlorido-substituted derivatives and characterised by near-edge X-ray absorption fine structure (NEXAFS) spectroscopy, X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The results are in accord with the formation of SAMs assembled by the chemisorption of both covalently bound thiolate-type as well as coordinatively bound thioether units. The adsorbate molecules adopt an essentially flat adsorption geometry on the substrate, resembling a suction pad on a surface. Lying low: A detailed analysis of thin films of subphthalocyaninatoboron derivatives self-assembled from solution onto gold surfaces is presented. The molecules are present on the substrate in a predominantly flat adsorption geometry, resembling a suction pad on a surface.</p>

Topics

• impedance spectroscopy
• surface
• thin film
• x-ray photoelectron spectroscopy
• gold
• spectrometry
• selective ion monitoring
• secondary ion mass spectrometry
• scanning auger microscopy
• near-edge X-ray absorption fine structure spectroscopy