Helical supramolecular host with aquapores anchoring alternate molecules of helical water chains

摘要

Unprecedented 1D helical chains of hydrogen bonded water molecules, showing both handedness and anchored onto a helical supramolecular host formed from the self assembly of a dicopper(Ⅱ) complex (1) containing pentadentate Schiff base (L) and p-hydroxycinnamate in 1·2H_2O, propagate along the crystallographic 2_1-screw axis and the compound shows two endotherms due to loss of water molecules at 61.5 and 88.5℃ in the differential scanning calorimetry giving an overall change of enthalpy value of ～36 kJ mol~(-1) per water molecule.