An Unusual Interweaving
in a 3-Fold Interpenetrated Pillared-Layer Zn(II) Coordination Polymer
with a Long Spacer Ligand
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Abstract
This communication describes a unique interweaving of
a pyridyl-based long linear spacer ligand, 1,4-bis[2-(4-pyridyl)ethenyl]benzene
(bpeb), in the triply interpenetrated pillar-layer porous coordination
polymer [Zn<sub>2</sub>(ndc)<sub>2</sub>(bpeb)]·DMF·3H<sub>2</sub>O (where ndc = 2,6-naphthalenedicarboxylate) containing a
paddle-wheel secondary building unit (SBU) with α-Po topology.
When the dicarboxylate is changed diethylpyrocarbonate (DEPC) from ndc to biphenyl-4,4′-dicarboxylate
(bpdc), the reaction furnished a completely different 3-fold interpenetrating
three-dimensional coordination polymer [Zn<sub>3</sub>(bpdc)<sub>3</sub>(bpeb)]·0.5DMSO·1.5H<sub>2</sub>O having a uninodal eight
connected network structure with hexagonal bipyramidal SBUs
