Triptycene-terminated thiolate and selenolate monolayers on Au(111)

Beilstein Journal of Nanotechnology
Jinxuan LiuChristof Wöll

Abstract

To study the implications of highly space-demanding organic moieties on the properties of self-assembled monolayers (SAMs), triptycyl thiolates and selenolates with and without methylene spacers on Au(111) surfaces were comprehensively studied using ultra-high vacuum infrared reflection absorption spectroscopy, X-ray photoelectron spectroscopy, near-edge X-ray absorption fine structure spectroscopy and thermal desorption spectroscopy. Due to packing effects, the molecules in all monolayers are substantially tilted. In the presence of a methylene spacer the tilt is slightly less pronounced. The selenolate monolayers exhibit smaller defect densities and therefore are more densely packed than their thiolate analogues. The Se-Au binding energy in the investigated SAMs was found to be higher than the S-Au binding energy.

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Citations

Apr 26, 2018·Chemistry : a European Journal·Alexander SchlimmFelix Tuczek
Nov 27, 2018·Physical Chemistry Chemical Physics : PCCP·Laxman KankatePetra Swiderek
Dec 12, 2019·ACS Applied Materials & Interfaces·Frank S BenneckendorfKlaus Müllen

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Methods Mentioned

BETA
X-ray
thermal desorption spectroscopy
scanning probe microscopy
infrared spectroscopy
quartz crystal microbalance

Software Mentioned

Gaussian
SURMOF

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Antifungals

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.