 21
Cu_3 Sb for Cu_3 Ti & Pmmn-D_{2h}^{13} #59 & oP8 & D0_a & Pearon's Handbook V. 
Sb     0.00000000     0.00000000    -1.57344000
Sb     2.75200000     2.17650000     1.57344000
Cu     0.00000000     2.17650000     1.52576000
Cu     2.75200000     0.00000000    -1.52576000
Cu     1.37600000     0.00000000     0.77718400
Cu     1.37600000     2.17650000    -0.77718400
Cu     4.12800000     2.17650000    -0.77718400
Sb     0.00000000     0.00000000     3.19456000
Cu     2.75200000     0.00000000     3.24224000
Sb     0.00000000     4.35300000    -1.57344000
Cu     2.75200000     4.35300000    -1.52576000
Cu     1.37600000     4.35300000     0.77718400
Sb     0.00000000     4.35300000     3.19456000
Cu     2.75200000     4.35300000     3.24224000
Sb     5.50400000     0.00000000    -1.57344000
Cu     5.50400000     2.17650000     1.52576000
Cu     4.12800000     0.00000000     0.77718400
Sb     5.50400000     0.00000000     3.19456000
Sb     5.50400000     4.35300000    -1.57344000
Cu     4.12800000     4.35300000     0.77718400
Sb     5.50400000     4.35300000     3.19456000
