symbole1,symbole,nom ,paires liantes,paires libres,centre 1,type centre 1,centre 2,type centre 2
C_2H_2,C2 H2,actylne,5,0,C,AX2,C,AX2
N_2F_2,N2 F2,difluoro diimide,4,8,N,AX2E,N,AX2E
CH_2SF_4,C H2 S F4,ttrafluoromthylne soufre,8,12,C,AX3,S,AX5
H_3NO,H3 N O,hydroxylamine,4,3,N,AX3E,O,AX2E2
C_2F_4,C2 F4,ttrafluorothane,6,12,C,AX4,C,AX4
C_2H_6,C2 H6,thane,7,0,C,AX4,C,AX4