New cadmium(II) and iron(II) coordination frameworks incorporating a di(4-pyridyl)isoindoline ligand

The metal-directed assembly of molecular frameworks incorporating the ditopic heterocyclic ligand 1-(4-pyridyl)imino-2(4-pyridyl)isoindohne (L) associated with nonlinear coordination vectors, is presented. Two infinite metallo-arrays of empirical formula [CdL(NO3)(2)(EtOH)](n)center dot(1.4H(2)O)(n) and [FeL2(NCS)(2)](n)center dot{(2CHClCCl(2))center dot(1.4MeOH)center dot(2.9H(2)O)}(n) have been characterised. The X-ray structures of both arrays are reported. The cadmium(II) framework consists of co-aligned 1D coordinate polymer chains while the iron(II) framework consists of rhombic grids with 2D polymeric connectivity. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)