Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 235-239 |
| Seitenumfang | 5 |
| Fachzeitschrift | Solid state communications |
| Jahrgang | 81 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - Jan. 1992 |
| Extern publiziert | Ja |
Abstract
Compounds containing cations with a valence electron configuration that can formally be described as (n-1)d10ns0 (Cu+, Ag+, Au+, Hg2+) exhibit a variety of unusual structural properties, e.g. low coordination numbers and short cation-cation distances. The incorporation of d electrons from the closed d10 sub-shell has been debated for a long time as a reason for this extraordinary behaviour. Ag L3 XANES spectra of oxidic silver(I) compounds exhibit a prominent peak at the rising edge. By comparison with the XANES spectrum of a Ag(III) periodate complex this peak is assigned to a transition from initial 2p states to 4d final states, proving that in oxidic Ag(I) compounds the closed-shell configuration 4d10 is broken. The intensity of the peak signalling unoccupied 4d states is related to the degree of covalent bonding in a compound.
ASJC Scopus Sachgebiete
- Chemie (insg.)
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
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in: Solid state communications, Jahrgang 81, Nr. 3, 01.1992, S. 235-239.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Bonding in silver-oxygen compounds from Ag L3 XANES spectroscopy
AU - Behrens, P.
PY - 1992/1
Y1 - 1992/1
N2 - Compounds containing cations with a valence electron configuration that can formally be described as (n-1)d10ns0 (Cu+, Ag+, Au+, Hg2+) exhibit a variety of unusual structural properties, e.g. low coordination numbers and short cation-cation distances. The incorporation of d electrons from the closed d10 sub-shell has been debated for a long time as a reason for this extraordinary behaviour. Ag L3 XANES spectra of oxidic silver(I) compounds exhibit a prominent peak at the rising edge. By comparison with the XANES spectrum of a Ag(III) periodate complex this peak is assigned to a transition from initial 2p states to 4d final states, proving that in oxidic Ag(I) compounds the closed-shell configuration 4d10 is broken. The intensity of the peak signalling unoccupied 4d states is related to the degree of covalent bonding in a compound.
AB - Compounds containing cations with a valence electron configuration that can formally be described as (n-1)d10ns0 (Cu+, Ag+, Au+, Hg2+) exhibit a variety of unusual structural properties, e.g. low coordination numbers and short cation-cation distances. The incorporation of d electrons from the closed d10 sub-shell has been debated for a long time as a reason for this extraordinary behaviour. Ag L3 XANES spectra of oxidic silver(I) compounds exhibit a prominent peak at the rising edge. By comparison with the XANES spectrum of a Ag(III) periodate complex this peak is assigned to a transition from initial 2p states to 4d final states, proving that in oxidic Ag(I) compounds the closed-shell configuration 4d10 is broken. The intensity of the peak signalling unoccupied 4d states is related to the degree of covalent bonding in a compound.
UR - http://www.scopus.com/inward/record.url?scp=0026715398&partnerID=8YFLogxK
U2 - 10.1016/0038-1098(92)90506-5
DO - 10.1016/0038-1098(92)90506-5
M3 - Article
AN - SCOPUS:0026715398
VL - 81
SP - 235
EP - 239
JO - Solid state communications
JF - Solid state communications
SN - 0038-1098
IS - 3
ER -