1Site 2a: 0,0,0 and , site symmetry ; site 2c: and , site symmetry .
2The heavily disordered atoms sit in neighboring cluster shells and are correlated. Al07b cannot be occupied by an atom when the closest Al06a/b sites are occupied and analogously, Al09b cannot be occupied when an atom is located on the closest Ta09a/b sites.
3Ta05, 4f with z = 0.53716.
4The sites, which are not described by the network of 11 symmetrically inequivalent icosahedra, are Al02, Al04, Al06, Al14, Ta01 and Ta09.
5The flipped atoms were the following: Ta05, Ta06, Ta08, Ta10, Ta11, Ta13, Ta15, Al01, Al07a/b, Al08, Al09a/b, Al10, Al12, Al/Cu1, Al/Cu2, Al/Cu3.
6Supplementary data for this paper are available from the IUCr electronic archives (Reference: SN5123 ). Services for accessing these data are described at the back of the journal.
7The published coordinates are shifted by with respect to ours (Villars & Cenzual, 2009/10).