biostudies-literatureKobayashi MDynamic Alliance for Open Innovation Bridging Human, Environment and MaterialsMinistry of Education, Culture, Sports, Science and TechnologyNippon Sheet Glass Foundation for Materials Science and Engineering260-263https://www.ebi.ac.uk/biostudies/studies/S-EPMC6362659biostudies-literatureUnknown75(Pt 2)Single crystals of the solid solution series Ca_4+<i>x</i> Y_3-<i>x</i> Si₇O_15+<i>x</i> N_5-<i>x</i> were obtained by a solid-state reaction method using a flux for <i>x</i> = 0, 0.5 and 1, resulting in Ca₄Y₃Si₇O₁₅N₅ (tetra-calcium triyttrium hepta-silicon oxynitride), Ca_4.5Y_2.5Si₇O_15.5N_4.5 and Ca₅Y₂Si₇O₁₆N₄ (penta-calcium diyttrium hepta-silicon oxynitride). Single-crystal X-ray analysis revealed that the three compounds are isotypic and belong to space-group type <i>P</i>6₃/<i>m</i>. Ca²⁺ and Y³⁺ cations are distributed over two crystallograpActa crystallographica. Section E, Crystallographic communicationsCrystal structures of Ca_4+<i>x</i> Y_3-<i>x</i> Si₇O_15+<i>x</i> N_5-<i>x</i> (0 ≤ <i>x</i> ≤ 1) comprising of an isolated [Si₇(O,N)₁₉] unit.PMC6362659JP16H06438JP16H06439JP16H06440Kato HFujii KYashima MYasunaga TKobayashi MKakihana MfalseCrystal structures of Ca_4+<i>x</i> Y_3-<i>x</i> Si₇O_15+<i>x</i> N_5-<i>x</i> (0 ≤ <i>x</i> ≤ 1) comprising of an isolated [Si₇(O,N)₁₉] unit.Single crystals of the solid solution series Ca_4+<i>x</i> Y_3-<i>x</i> Si₇O_15+<i>x</i> N_5-<i>x</i> were obtained by a solid-state reaction method using a flux for <i>x</i> = 0, 0.5 and 1, resulting in Ca₄Y₃Si₇O₁₅N₅ (tetra-calcium triyttrium hepta-silicon oxynitride), Ca_4.5Y_2.5Si₇O_15.5N_4.5 and Ca₅Y₂Si₇O₁₆N₄ (penta-calcium diyttrium hepta-silicon oxynitride). Single-crystal X-ray analysis revealed that the three compounds are isotypic and belong to space-group type <i>P</i>6₃/<i>m</i>. Ca²⁺ and Y³⁺ cations are distributed over two crystallograp2019-01-01T00:00:00Z2019 Feb2025-04-26T11:18:13.654Z2019-08-04T07:00:52ZS-EPMC63626593080046310.1107/S2056989019001257