Methyl groups control coordination number, stoichiometry, network and magnetism in a Cu(ii)-azide-pyrazine (6,3) 2D net†
Abstract
The methyl groups of [Cu2(2,5-dimethylpyrazine)(N3)4]n, 1, force penta-coordination on the Cu(II) ions, which, together with the di-µ-1,1azido zigzag chains, result in a (6,3) 2D net with dominant ferromagnetic interactions.