Water–chloride 2D-network in 4′-(2-pyridyl)-2,2′:6′,2′′-terpyridine bis-chelates of M(II) {M = Fe, Ni, Ru}

A triad of bis-chelates of 4′-(2-pyridyl)-2,2′:6′,2′′-terpyridine (L), with the formula [M(L)2]Cl2·xH2O, {M = Ni, Fe, Ru and x = 8, 9, 10, respectively}, have been synthesized. All the three complexes crystallized in the P1¯ space group and each contain the respective iso-structural [M(L)2]2+ species, two Cl− ions as well as water molecules of crystallization. The water–chloride 2D-network are amalgamated between the hydrophobic layers of [M(L)2]2+ ions. The centro-symmetric repeating unit that makes the water–chloride 2D-network is of a L5(2)5(3)8(2)4 pattern. Thermogravimetric profiles for the loss of water molecules are reported.

Bis-chelates of 4′-(2-pyridyl)-2,2′:6′,2′′-terpyridine (L), having the formula [M(L)2]Cl2·xH2O {M = Ni(II), Fe(II), Ru(II) and x = 8, 9, 10, respectively}, contain hydrophilic layers of a water–chloride 2D-network amalgamated between the hydrophobic layers formed by the [M(L)2]2+ ions.Figure optionsDownload as PowerPoint slide