Supramolecular Assembly of a Zn(II)-Based 1D Coordination Polymer through Hydrogen Bonding and π···π Interactions: Crystal Structure and Device Applications

A new mixed-ligand
divalent one-dimensional coordination polymer (1D CP) [Zn­(adc)­(4-nvp)2(H2O)2]n, (1) [H2adc = acetylenedicarboxylic acid
and 4-nvp = 4-(1-naphthylvinyl)­pyridine] has been synthesized and
well characterized by elemental analysis, infrared spectrum, single-crystal
X-ray crystallography, powder X-ray diffraction pattern, and thermogravimetric
analysis. The compound 1 constructs a 3D supramolecular
network by the combination of hydrogen bonding, C–H···π,
and π···π interactions. Interestingly,
the material shows Schottky behavior which is exclusively analyzed
with the help of thermionic emission and space charge-limited current
theory. In addition, the Schottky barrier diode parameters for compound 1 demonstrate better device performance after light soaking.
Hence, the compound has applicability in the fabrication of optoelectronic
devices.