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Figure 12
Rows of Si tetrahedra projected along the ∼9 Å viewing direction of (a) the incommensurate modulated structure of [\alpha_H^{\prime} {\hbox{-}} {\rm C}_2 {\rm S}], (b) [\alpha_L^{\prime} {\hbox{-}} {\rm C}_2 {\rm S}] and (c) β-C2S. The tilt of each tetrahedron is illustrated by the black arrow below it. Ca positions have been omitted for clarity. Si is displayed in orange and O in red.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
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