Hydrothermal Synthesis and Structures of Two One-Dimensional Heteropolytungstates Chains Formed by Keggin Cluster Units

摘要

Single crystals of [W11Ni1P1O39(Hbpy)](H(2)bpy)(2) center dot A 4.25H(2)O (1) and (W11Zn1P1O39)(H(2)bpy)(2)(Hbpy) center dot A 1.5H(2)O (2) have been hydrothermally synthesized at 160 A degrees C and both characterized by IR, elemental and single-crystal structural analyses. Compound 1 has a ladder-like chain structure by hydrogen bonding interactions, whereas 2 contains an unprecedented chain of Keggin polyoxotungstates by oxo-bridges and form a 2-D layer via hydrogen bonds.