Optical rotation in RbTiOAsO4 (point group mm2)
UNSPECIFIED (2002) Optical rotation in RbTiOAsO4 (point group mm2). ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 217 (1). pp. 1-7. ISSN 0044-2968Full text not available from this repository.
Measurement of optical rotation in RbTiOASO(4) (RTA) with the tiller method resulted in an optical rotation Of Q(12) = +17(3)degrees/mm at a wavelength of 670 nm, when a (100) sample was tilted about . A tilt about  showed no rotation, as expected from the directional dependence of optical rotation calculated from the tensor in point group mm2. The absolute Miller-indices of the samples were found using X-ray anomalous scattering. The calculations with a dipole-dipole model show that the As5+-ions in RTA correlate with the main structural contribution of the optical rotation. However, there seems to be an even larger intrinsic contribution due to the Ti4+ - ions as a result of the distorted octahedral co-ordination with oxygen.
|Item Type:||Journal Article|
|Subjects:||Q Science > QD Chemistry|
|Journal or Publication Title:||ZEITSCHRIFT FUR KRISTALLOGRAPHIE|
|Publisher:||R OLDENBOURG VERLAG|
|Number of Pages:||7|
|Page Range:||pp. 1-7|
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