The title compound packs with two crystallographically independent molecule
s, both symmetry 1, with the same bond lengths and angles within experiment
al error. The molecules form a four-membered cyclamer held together by I .
. . CN intermolecular Lewis acid-base interactions. The two independent N .
. .I distances are 3.263 (6) and 3.344 (6) Angstrom. The independent molec
ules are not related by any pseudosymmetry.