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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
(a) Perspective view of complex 2, with the atom numbering scheme. Thermal ellipsoids are drawn at the 50% probability level (symmetry code i: −x, y, 1/2−z); (b) View of the packing of 2 in the unit cell.