Structural consequences of a molecular assembly that is deficient in hydrogen-bond acceptors

Abstract

The X-ray crystal structure of 1, a molecular assembly that is deficient in H-bond acceptors relative to the number of H-bond donors, illustrates two methods by which this unfavourable situation can be accommodated: (i) through the formation of weak N–H ⋯π hydrogen-bonds and (ii) through a change in hybridisation.