Can 4,4′-bipyridine N,N’-dioxide play the same important role as 4,4′-bipyridine in the construction of metal coordination networks and crystal engineering?

Various binding modes of 4,4′-bipyridine N,N′-dioxide (L) for crystal engineering are demonstrated in the complexes [Zn(MeOH)2L3](SiF6)·3MeOH and [ZnL6](NO3)2, which include examples of M–L coordination bonds, hydrogen-bonding and π–π stacking interactions.