4

Ni     -0.171419635241910      0.402720543721181      0.089423439016807
Ni      1.457064244271890      1.775599808387315     -0.286782870693997
Nb      1.717364446883575     -0.213952216663259      1.703841316488826
Nb     -0.207753768636242      1.232149640017638      1.500410250252311