A study of the crystal structure of the Zr4Co4Ge7 (V-phase) intermetal
lic compound was carried out using electron microscopic techniques. Re
sults of electron diffraction (ED) analysis show that Zr4Co4Ge7 has a
body-centered tetragonal structure with space group 14/mmm. Images tak
en by high-resolution transmission electron microscopy (HRTEM) reveale
d the structure at the atomic level. Large bright spots in the [001] z
one HREM image represent Ge-centered square antiprism columns, and the
eight small bright spots around them represent Co-centred octahedron
columns. Good agreement between the observed and simulated images was
obtained confirming the results proposed earlier based on X-ray diffra
ction analysis.