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Adsorption characteristics of a Zn‐Porphyrin on MgO surfaces
Author(s) -
Killian Manuela S.,
Wagener Victoria,
Schmuki Patrik
Publication year - 2013
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.4915
Subject(s) - porphyrin , siloxane , monolayer , adsorption , fragmentation (computing) , magnesium , chemistry , photochemistry , spectral line , inorganic chemistry , analytical chemistry (journal) , organic chemistry , biochemistry , physics , astronomy , computer science , operating system , polymer
Time‐of‐flight SIMS was used to study monolayers of the siloxane terminated porphyrin Zn‐TESP (C 67 H 75 N 5 O 5 SiZn) attached to magnesium oxide (MgO) substrates in a silanisation reaction. Time‐of‐flight SIMS spectra show dependence of the coverage on the preparation temperature. The fragmentation pattern of the porphyrin suggests a strong bond formation to MgO, as was previously reported for SiO 2 . No signal of physisorbed porphyrin—as previously described for TiO 2 —could be detected, indicating chemisorbed species under all investigated preparation conditions. Copyright © 2012 John Wiley & Sons, Ltd.