Parallel stacking interactions in square-planar transition-metal complexes containing fused chelate and C6-aromatic rings

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Abstract

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. © 2012 International Union of Crystallography Printed in Singapore - all rights reserved.

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Sredojević, D. N., Vojislavljević, D. Z., Tomić, Z. D., & Zarić, S. D. (2012). Parallel stacking interactions in square-planar transition-metal complexes containing fused chelate and C6-aromatic rings. Acta Crystallographica Section B: Structural Science, 68(3), 261–265. https://doi.org/10.1107/S0108768112012281

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