TY  - JOUR
A1  - Dietrich, Paul M.
A1  - Glamsch, Stephan
A1  - Ehlert, Christopher
A1  - Lippitz, Andreas
A1  - Kulak, Nora
A1  - Unger, Wolfgang E. S.
T1  - Synchrotron-radiation XPS analysis of ultra-thin silane films: Specifying the organic silicon
JF  - Applied surface science : a journal devoted to applied physics and chemistry of surfaces and interfaces
N2  - The analysis of chemical and elemental in-depth variations in ultra-thin organic layers with thicknesses below 5 nm is very challenging. Energy- and angle-resolved XPS (ER/AR-XPS) opens up the possibility for non-destructive chemical ultra-shallow depth profiling of the outermost surface layer of ultra-thin organic films due to its exceptional surface sensitivity. For common organic materials a reliable chemical in-depth analysis with a lower limit of the XPS information depth z(95) of about 1 nm can be performed. As a proof-of-principle example with relevance for industrial applications the ER/AR-XPS analysis of different organic monolayers made of amino- or benzamidosilane molecules on silicon oxide surfaces is presented. It is demonstrated how to use the Si 2p core-level region to non-destructively depth-profile the organic (silane monolayer) - inorganic (SiO2/Si) interface and how to quantify Si species, ranging from elemental silicon over native silicon oxide to the silane itself. The main advantage of the applied ER/AR-XPS method is the improved specification of organic from inorganic silicon components in Si 2p core-level spectra with exceptional low uncertainties compared to conventional laboratory XPS. (C) 2015 Elsevier B.V. All rights reserved.
KW  - Synchrotron radiation XPS
KW  - Depth profiling
KW  - Silanes
KW  - Monolayer
KW  - Amines
KW  - Amides
Y1  - 2016
U6  - https://doi.org/10.1016/j.apsusc.2015.12.052
SN  - 0169-4332
SN  - 1873-5584
VL  - 363
SP  - 406
EP  - 411
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Schmidt, Bernd
A1  - Elizarov, Nelli
A1  - Riemer, Nastja
A1  - Hölter, Frank
T1  - Acetamidoarenediazonium Salts: Opportunities for Multiple Arene Functionalization
JF  - European journal of organic chemistry
N2  - Unlike their ortho counterparts, meta- and para-acetamidoanilines can be converted into the corresponding acetamidoarenediazonium salts. These offer various opportunities for multiple Pd-catalyzed arene functionalization reactions, such as Matsuda-Heck-, Suzuki-Miyaura- or Fujiwara-Moritani couplings.
KW  - Arenes
KW  - Amides
KW  - C-C coupling
KW  - Cross-coupling
KW  - Palladium
Y1  - 2015
U6  - https://doi.org/10.1002/ejoc.201500795
SN  - 1434-193X
SN  - 1099-0690
IS  - 26
SP  - 5826
EP  - 5841
PB  - Wiley-VCH
CY  - Weinheim
ER  -