Help Privacy Policy Disclaimer
  Advanced SearchBrowse




Journal Article

TiGePt - a study of Friedel differences


Borrmann,  H.
Horst Borrmann, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;


Grin,  Y.
Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available

Ackerbauer, S. V., Borrmann, H., Burgi, H. B., Flack, H. D., Grin, Y., Linden, A., et al. (2013). TiGePt - a study of Friedel differences. Acta Crystallographica Section B - Structural Science, 69, 457-464. doi:10.1107/S2052519213021635.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0015-1E40-E
The X-ray single-crystal diffraction intensities of the intermetallic compound TiGePt were analysed. These showed beyond doubt that the crystal structure is non-centrosymmetric. The analysis revolves around the resonant-scattering contribution to differences in intensity between Friedel opposites hkl and (h) over bar(k) over bar(l) over bar. The following techniques were used: R-merge factors on the average (A) and difference (D) of Friedel opposites; statistical estimates of the resonant-scattering contribution to Friedel opposites; plots of 2A(obs) against 2A(model) and of D-obs against D-model; the antisymmetric D-Patterson function. Moreover it was possible to show that a non-standard atomic model was unnecessary to describe TiGePt. Two data sets are compared. That measured with Ag K alpha radiation at 295 K to a resolution of 1.25 angstrom(-1) is less conclusive than the one measured with Mo K alpha radiation at 100 K to the lower resolution of 0.93 angstrom(-1). This result is probably due to the fact that the resonant scattering of Pt is larger for Mo K alpha than for AgK alpha radiation.