In:
Zeitschrift für anorganische und allgemeine Chemie, Wiley, Vol. 639, No. 5 ( 2013-04), p. 779-783
Kurzfassung:
The aluminosilicate Li 2 Na 3 AlSi 2 O 8 was crystallized from the Li 2 CO 3 –H 3 BO 3 flux system. It crystallizes in the orthorhombic space group Cmca , with cell dimensions a = 14.1045 (19) Å, b = 14.7054 (19) Å, c = 7.0635 (9) Å, and Z = 8. The crystal structure consists of a two‐dimensional infinite layer, which is composed of [Al 2 Si 2 O 12 ] groups and [SiO 4 ] tetrahedra. The lithium and sodium atoms filling in the interlayer and intralayer link the layers together and balance the charge. IR spectroscopy and BVS calculations were used to verify the validity of the structure. The calculated band structures and the density of states of Li 2 Na 3 AlSi 2 O 8 suggest that its direct gap is 4.28 eV.
Materialart:
Online-Ressource
ISSN:
0044-2313
,
1521-3749
DOI:
10.1002/zaac.201200521
Sprache:
Deutsch
Verlag:
Wiley
Publikationsdatum:
2013
ZDB Id:
201094-X
ZDB Id:
1481139-X
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