4

Fe      0.384160457648838      0.202241917478510     -0.239765080650222
Nb      1.482372382410441      1.759118903279818      0.275212519589815
Fe      1.698777142763064      0.108813135377086      1.632502561330504
Nb      0.100311516002597      1.554425798771662      1.354318699447148