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Figure 1
Crystal structure of Ca4Y3Si7O15N5 (1) drawn with cation-centered polyhedra. Pink, green, blue, red and black spheres indicate calcium, yttrium, silicon, oxygen, and nitro­gen ions, respectively. Mixed colours of the Si3 and associated (N,O) positions indicate the fraction of vacancy/occupancy.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 75| Part 2| February 2019| Pages 260-263
https://doi.org/10.1107/S2056989019001257
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