The correlation between paramagnetism and the shnkc-up wlcllites in the X-ray photoelcclron spectra of the 3d transition-metal compounds is examined and explained in wrms OP modified sehxtion rules governing ~hc shake-up Volume 14. number I CIIEhllCAL PHYSICS LETTERS
Shake-up satellites in Hel photoelectron spectra: N2O4 and CH3O
โ Scribed by D.P. Chong; D.C. Frost; W.M. Lau; C.A. McDowell
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 400 KB
- Volume
- 90
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
Low-lying vacant molccuku orbltals may lead not only to a breakdow of Koopmans'theorem but also to satellite structure m photoelectron spectra.This paper reports examples of the relatiwly infrequent appearance of shake-up satel-Ltes in Hcl photoelecuon spectra, namely those oi N~OJ and CHaNO. An extended version of the HAhl/3 program was used to mtcrpret these spectra.
๐ SIMILAR VOLUMES
The C 1s PES of hloz(OzCH)~ and hfo2(02CCH3)4, reported here, show an mtense satelbte peak close to the mam C 1s bne II-us IS assigned, by means of ab mit~o calculations, to a bI (6) + bt (CZpn) transition of the core hole Ion The la& of an mtense satelhte III the 0 1s spectrum IS dncussed.
Exatiination of the various &r&ions liable to contribute to stetite profiles in X-ray photoelectron spectra of 3d-transition metal compounds is intended Lo show the inadequacy of the monopble selection rule which has been wed to account for the app.zrent conelztion between satellite!; and pammagneti
Satellite structure has been obsezved at 8 eV and 12 eV below the main metal 2p peaks for compounds of Sc3+ and Ti4+. These futures are attributed to charge transfer "shake-up" transitions (tag + tzg and eg -+ eg respectively). The 8 eV satellites are only found in sulphate complexes of Se3' \_ This
KU X-ray photoelectron (ESCA) ,qrectra of the Co 2p levels have been obtained in fnrns-and ci%[Co(NHa)&a ] Cl isomers\_ It is observed that these compounds slowly decompose under X-ray irradiation. A procedure is employed to record real spectra for both the trans and cis isomers without any sighican