The supramolecular assembly of tin(IV) porphyrin equipped with six pyridyl groups, trans-diisonicotinate[meso-tetrakis(4-pyridyl)porphyrinato]tin(IV), generates a uniform channel lined with the pyridyl groups, in which the lattice water molecules are ordered into a single-file chain by hydrogen bonding between neighboring water molecules along the chain as well as hydrogen bonding between water molecules and the pyridyl lining of the channel.
CrystEngComm
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