Can 4,4′-bipyridineN,N ′-dioxide play the same important role as 4,4′-bipyridine in the construction of metal coordination networks and crystal engineering?Electronic supplementary information (ESI) available: molecualr structures and labelling schemes for complexes 1 and 2. See http://www.rsc.org/suppdata/cc/b0/b006679f/
Abstract
Various binding modes of