[patata]

I would be gratefull if somebody could help me assign this spectrum. It is from a BMI 1700, shown in this link.

[Borek]

You have to show your attempts at solving the question to receive help. This is a forum policy.

[patata]

The main peaks that are observed along with the assignment are:

1079cm^-1 : maleimide C-H in phase bend
1107 cm^-1 : C-O-C stretch
1176 cm^-1 : C-N-C stretch
1210 cm^-1 : N-phenyl stretch
1442 cm^-1 : C-N-C stretch
1502 cm^-1 : aromatic C=C stretch
1586, 1602, 1615 cm^-1 : C=C stretch in maleimide
1771 cm^-1 : C=O symmetric stretch

P.S. Excuse me Borek for not showing any attempt I wasn't aware of the policy.