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Reduction of clay surface‐sorbed organometallics during measurement of X‐ray photoelectron spectra (XPS)
Author(s) -
Claire Ashcroft R.,
Abid Khalid Y.,
McWhinnie William R.,
Saied Sayah O.
Publication year - 1994
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.590080204
Subject(s) - x ray photoelectron spectroscopy , chemistry , bentonite , sorption , decomposition , x ray , clay minerals , inorganic chemistry , chemical engineering , organic chemistry , mineralogy , adsorption , physics , quantum mechanics , engineering
Some organometallic compounds, e.g. Ph 3 SnCl, react on the surface of the smectite clay, laponite. Other compounds, e.g. Br 3 TeC 6 H 4 CH=NCH 2 CH 2 N=CHC 6 H 4 TeBr 3 , are sorbed onto the organophilic surface of cetylpyridinium‐ion‐exchanged Wyoming bentonite. X‐ray photoelectron spectroscopy (XPS) is an appropriate technique with which to examine the nature of the surface‐sorbed species; however, it is demonstrated that decomposition of the organometallic can occur when the clay surface is exposed over a period of time to energetic X‐rays. Thus, care must be taken with the interpretation of data of which some features may be the result of the XPS experiment.