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Sredojevic, Dusan N; Vojislavljevic, Dubravka Z; Tomic, Zoran D; Zaric, Snezana D
Acta crystallographica. Section B, Structural science, June 2012, Volume: 68, Issue: 3Journal Article
Stacking interactions in the crystal structures of square‐planar transition metal complexes from the Cambridge Structural Database with five‐ and six‐membered chelate rings fused with C6‐arom rings (arom = aromatic) were analyzed. The distribution of distances between the closest C6‐arom–C6‐arom and C6‐arom–chelate contacts shows that in a large fraction of the intermolecular interactions the C6‐arom ring of one molecule is closer to the chelate than to the C6‐arom ring of the other molecule. These results indicate a possible preference of the C6‐arom ring to form stacking contacts with the chelate rings. The preference is ubiquitous and does not depend on the metal type.
