Fig. 2
From: Can Nucleobase Pairs Offer a Possibility of a Direct 3D Self-assembly?
Geometrical structure of observable at normal conditions heteroassociates of the m1Cyt · m1Thy. The non-planar heteroassociates are represented in two projections while the planar ones are represented by one projection. Numbers under heteroassociates correspond to the row ‘complex’ of Table 1. H-bonds and van der Waals contacts (represented by dotted lines and their corresponding bond lengths H…B/A…B are given in Å)