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Titolo:
The EuOn coordination polyhedra in crystal structures
Autore:
Vologzhanina, AV; Serezhkina, LB; Serezhkin, VN;
Indirizzi:
Samara State Univ, Samara 443086, Russia Samara State Univ Samara Russia443086 State Univ, Samara 443086, Russia
Titolo Testata:
RUSSIAN JOURNAL OF COORDINATION CHEMISTRY
fascicolo: 10, volume: 27, anno: 2001,
pagine: 717 - 721
SICI:
1070-3284(200110)27:10<717:TECPIC>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
ATOMS; NUMBERS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Vologzhanina, AV Samara State Univ, Samara 443086, Russia Samara State Univ Samara Russia 443086 a 443086, Russia
Citazione:
A.V. Vologzhanina et al., "The EuOn coordination polyhedra in crystal structures", RUSS J C CH, 27(10), 2001, pp. 717-721

Abstract

The Voronoi-Dirichlet polyhedra (VDP) and the method of intersecting spheres were used to perform crystal-chemical analysis of the compounds studied to date containing EuOn polyhedra. The Eu(III) and Eu(II) atoms were found to have coordination numbers (C.N.s) from 6 to 12 with respect to oxygen. The Eu(III) --> Eu(II) transition entails an increase in the VDP volume by, on average, 4 Angstrom (3). For a constant valence state of europium, the VDP volume barely depends on the C.N., although the Eu-O interatomic distances change by 0.72 Angstrom for Eu(III)-containing structures and by 0.59 Angstrom for Eu(II)-containing structures.

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Documento generato il 16/07/20 alle ore 19:25:13