Crystal structure of the high-pressure phase of the oxonitridosilicate chloride Ce4[Si4O3 + xN7 − x]Cl1 − xOx, x ≃ 0.2

Friedrich, A.; Haussühl, E.; Morgenroth, W.; Lieb, A.; Winkler, B.; Knorr, K.; Schnick, W.

doi:10.1107/S0108768106003302

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 4
Projection of the Si(N,O)₄ tetrahedral arrangement of the cubic low-pressure phase of Ce₄[Si₄O_3 + xN_7 −x]Cl_1 − xO_x, x ≃ 0.2, at 8.5 GPa and of the orthorhombic high-pressure phase at 8.6 GPa. The strong bending of some inter-polyhedral Si—N—Si angles is also shown. Ce atoms and the mixed Cl/O2 positions are not drawn.

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 62| Part 2| March 2006| Pages 205-211

doi:10.1107/S0108768106003302

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