Preparation and crystal structure of [(AlBr3)2(Se2N2)], the first example of a main-group element adduct of diselenium dinitride

The room temperature reaction of AlBr3 with Se4N4 in CH2Br2 generated [(AlBr3)2(Se2N2)] as an air-sensitive, yellow solid; X-ray crystallography confirmed the presence of the neutral Se2N2 ligand, bridging via two Al–N bonds.