title: Magnesium diiodide, MgI2.
abstract: Single crystals of magnesium diiodide have been grown and the structure solved for the first time from single-crystal X-ray diffraction data. This study confirms that MgI(2) is isostructural with CdI(2) (C6 or 2H structure type). The space group is P-3m1 with the Mg atom on a site with 3m symmetry (Wyckoff site 1a) and the I atom on a site with m symmetry (Wyckoff site 2d). Trends in the 2H structures of dihalides are discussed briefly.
authors.affiliation: School of Chemistry, The University of Nottingham, University Park, Nottingham NG7 2RD, England.
authors.forename: Michael A
authors.initials: MA
authors.lastname: Brogan
authors.forename: Alexander J
authors.initials: AJ
authors.lastname: Blake
authors.forename: Claire
authors.initials: C
authors.lastname: Wilson
authors.forename: Duncan H
authors.initials: DH
authors.lastname: Gregory