Potassium lithium carbonate, KLiCO3: single-crystal X-ray structure analysis and thermal expansion
-
Armin Kirfel
Single crystals of KLiCO3, the intermediate compound in the eutectic system K2CO3-Li2CO3, were synthesized from the melt and the crystal structure was redetermined at room temperature by single-crystal X-ray diffraction: a = 7.232(1 ) Å, b = 7.085(2 )Å, c = 6.579(1) Å, ß = 113.40(1)°, space group P21/n (No 14), Z = 4. Earlier literature results obtained by neutron time-of-flight powder diffraction are corroborated. The structure is composed of distorted face and edge sharing LiO5 and KO9 coordination polyhedra which are arranged in a layered manner and are connected by distorted but planar carbonate anions. In addition to the structure analysis, the thermal expansion of the crystal was measured and analyzed up to melting at 504.5 ± °C. It exhibits a significant anisotropy with a maximum in direction c* about three times as large as the almost equal expansions in the a,b plane. This anisotropy is clearly understood from the distribution of bonds in the structure rather than from its layered nature.
© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München
Articles in the same Issue
- Temperature related structural variation of the hydrous components in gypsum
- Modified hydrothermal diamond anvil cells for XAFS analyses of elements with low energy absorption edges in aqueous solutions at sub- and supercritical conditions
- Edgeworth series expansion of the truncated Cauchy function and its effectiveness in the study of atomic heterogeneity
- Intergrowth polytypoids as modulated structures: the example of the cation deficient oxides LaTi1-xO3
- Crystal structure and thermal expansion of β-RbB5O8 from powder diffraction data
- Potassium lithium carbonate, KLiCO3: single-crystal X-ray structure analysis and thermal expansion
- The crystal structures of NaNO3 at 100 K, 120 K and 563 K
- Powder Rietveld refinement of armstrongite, CaZr[Si6O15]·3H2O
- Molecular structures of two indole alkaloids, evodiamine and rutecarpine, from evodia fruit
- Synthesis and properties of N1-(1,2,3,6-tetrahydrophthaloyl)semi- and thiosemicarbazides. II. Chiral N-substituted amides of 1-(3-ethylthio-1,2,4-triazol-5-yl)-4-cyclohexene-2-carboxylic acid
- Books Received
Articles in the same Issue
- Temperature related structural variation of the hydrous components in gypsum
- Modified hydrothermal diamond anvil cells for XAFS analyses of elements with low energy absorption edges in aqueous solutions at sub- and supercritical conditions
- Edgeworth series expansion of the truncated Cauchy function and its effectiveness in the study of atomic heterogeneity
- Intergrowth polytypoids as modulated structures: the example of the cation deficient oxides LaTi1-xO3
- Crystal structure and thermal expansion of β-RbB5O8 from powder diffraction data
- Potassium lithium carbonate, KLiCO3: single-crystal X-ray structure analysis and thermal expansion
- The crystal structures of NaNO3 at 100 K, 120 K and 563 K
- Powder Rietveld refinement of armstrongite, CaZr[Si6O15]·3H2O
- Molecular structures of two indole alkaloids, evodiamine and rutecarpine, from evodia fruit
- Synthesis and properties of N1-(1,2,3,6-tetrahydrophthaloyl)semi- and thiosemicarbazides. II. Chiral N-substituted amides of 1-(3-ethylthio-1,2,4-triazol-5-yl)-4-cyclohexene-2-carboxylic acid
- Books Received
