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Figure 2
Roby–Gould orbitals used in the estimation of Cl⋯N atom⋯atom bond orders. (a) Covalent bonding, (b) covalent antibonding, (c) ionic bonding and (d) ionic antibonding for the Cl⋯N interaction in the CCACEN dimer, θ = 83°.

IUCrJ
Volume 5| Part 5| September 2018| Pages 635-646
ISSN: 2052-2525
https://doi.org/10.1107/S2052252518010758