Unknown

Dataset Information

0

Crystal structure of (K1.5Na0.5)Ca3Si3O10.

ABSTRACT: Single crystals of (K1.52Na0.48)Ca3Si3O10 [idealized (K1.5Na0.5)Ca3Si3O10, di(pot-assium, sodium) tricalcium tris-ilicate], were obtained from the crystallization of a glass with a molar oxide ratio of K2O:Na2O:CaO:SiO2 = 1.5:0.5:6:6 that was annealed at 1273 K. The crystal structure can be characterized as a mixed-anion oxidosilicate with isolated [SiO4] tetra-hedra as well as [Si4O12] vierer single rings. The insular and cyclic silicate anions occur in the ratio 2:1, resulting in the idealized crystallochemical formula K3NaCa6[SiO4]2[Si4O12]. Charge compensation is provided by K+, Na+ (occupying the same sites) and Ca2+ cations. The two unique Ca2+ cations are coordinated by six O atoms, forming distorted octa-hedra. By sharing common corners, edges and faces, these [CaO6] polyhedra build up octa-hedral layer-like motifs parallel to (010). (K/Na)+ ions reside in voids between the the silicate anions and the calcium centered octa-hedra and are coordinated by eight to nine oxygen ligands. (K1.5Na0.5)Ca3Si3O10 is isotypic with K2Ca3Si3O10 indicating the existence of a solid-solution series K2-x Na x Ca3Si3O10.

SUBMITTER: Kahlenberg V 

PROVIDER: S-EPMC9260351 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

Crystal structure of (K<sub>1.5</sub>Na<sub>0.5</sub>)Ca<sub>3</sub>Si<sub>3</sub>O<sub>10</sub>.

Kahlenberg Volker V  

Acta crystallographica. Section E, Crystallographic communications 20220616 Pt 7

Single crystals of (K<sub>1.52</sub>Na<sub>0.48</sub>)Ca<sub>3</sub>Si<sub>3</sub>O<sub>10</sub> [idealized (K<sub>1.5</sub>Na<sub>0.5</sub>)Ca<sub>3</sub>Si<sub>3</sub>O<sub>10</sub>, di(pot-assium, sodium) tricalcium tris-ilicate], were obtained from the crystallization of a glass with a molar oxide ratio of K<sub>2</sub>O:Na<sub>2</sub>O:CaO:SiO<sub>2</sub> = 1.5:0.5:6:6 that was annealed at 1273 K. The crystal structure can be characterized as a mixed-anion oxidosilicate with isolated [SiO<s  ...[more]

Similar Datasets

Unknown Crystal chemistry and compressibility of Fe<sub>0.5</sub>Mg<sub>0.5</sub>Al<sub>0.5</sub>Si<sub>0.5</sub>O<sub>3</sub> and FeMg<sub>0.5</sub>Si<sub>0.5</sub>O<sub>3</sub> silicate perovskites at pressures up to 95 GPa.
| S-EPMC10587407 | biostudies-literature
Unknown Influence of W substitution on crystal structure, phase evolution and microwave dielectric properties of (Na<sub>0.5</sub>Bi<sub>0.5</sub>)MoO<sub>4</sub> ceramics with low sintering temperature.
| S-EPMC5466633 | biostudies-literature
Unknown Crystal structure of MgK<sub>0.5</sub>[B<sub>6</sub>O<sub>10</sub>](OH)<sub>0.5</sub>·0.5H<sub>2</sub>O, poly[dimagnesium potassium bis(hexa-borate) hy-droxide monohydrate].
| S-EPMC9535820 | biostudies-literature
Unknown Comparison of (K<sub>0.5</sub>Na<sub>0.5</sub>)NbO<sub>3</sub> Single Crystals Grown by Seed-Free and Seeded Solid-State Single Crystal Growth.
| S-EPMC10224234 | biostudies-literature
Unknown Tilt-structure and high-performance of hierarchical Bi<sub>1.5</sub>Sb<sub>0.5</sub>Te<sub>3</sub> nanopillar arrays.
| S-EPMC5913231 | biostudies-literature
Unknown Structure, optical and magnetic properties of new Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>- SrMnO<sub>3-δ</sub> solid solution materials.
| S-EPMC6890638 | biostudies-literature
Unknown Ca<sup>2+</sup>-dependent regulation of sodium channels Na<sub>V</sub>1.4 and Na<sub>V</sub>1.5 is controlled by the post-IQ motif.
| S-EPMC6447637 | biostudies-literature
Unknown Atomic Resolution Interfacial Structure of Lead-free Ferroelectric K<sub>0.5</sub>Na<sub>0.5</sub>NbO<sub>3</sub> Thin films Deposited on SrTiO<sub>3</sub>.
| S-EPMC5122904 | biostudies-literature
Unknown Theoretical study on structural and mechanical properties of Si-containing ternary transition metal nitrides M<sub>0.5</sub>Si<sub>0.5</sub>N (M = Ti, Zr, Hf).
| S-EPMC10025939 | biostudies-literature
Unknown Rapid Low-Dimensional Li<sup>+</sup> Ion Hopping Processes in Synthetic Hectorite-Type Li<sub>0.5</sub>[Mg<sub>2.5</sub>Li<sub>0.5</sub>]Si<sub>4</sub>O<sub>10</sub>F<sub>2</sub>.
| S-EPMC7499405 | biostudies-literature