Structures of nanometre-size crystals determined from selected-area electron diffraction data.
The structure of a new modification of Ti2Se, the beta-phase, and several related inorganic crystal structures containing elements with atomic numbers between 16 and 40 have been solved by quasi-automatic direct methods from single-crystal electron diffraction patterns of nanometre-size crystals, using the kinematical approximation. The crystals were several thousand times smaller than the minimum size required for single-crystal X-ray diffraction. Atomic coordinates were found with an average accuracy of 0.2 A or better. Experimental data were obtained by standardized techniques for recording and quantifying electron diffraction patterns. The SIR97 program for solving crystal structures from three-dimensional X-ray diffraction data by direct methods was modified to work also with two-dimensional electron diffraction data.
Weirich
T E
TE
Stockholm University, Sweden. weirich@hrzpub.tu-darmstadt.de
Zou
X
X
Ramlau
R
R
Simon
A
A
Cascarano
G L
GL
Giacovazzo
C
C
Hovmöller
S
S