ISSN:
1063-7745
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The crystal structure of the synthetic Ge-modification of the mineral natisite, Na2{ TiOGeO4}, has been refined by X-ray diffraction method (a four-circle diffractometer, 2θ/θ scanning, MoK α-radiation, θmax = 50°: a = 6.658(1), c = 5.161(1) Å, sp. gr. P4/nmm, Z = 2, ρcalcd = 3.58 g/cm3, R1 = 0.030, s = 1.131, wR(F 2) = 0.058 (352 reflections with I≥2σI). The comparative crystallochemical analysis of the related (including hypothetical) phases with the anionic {MTO 5} radicals (M = Ti, V, Ge; T = Ge, Si, P) is performed with the aim of revealing a possible relationship between the composition and the structure type of the compounds.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1134/1.1306565
Permalink