Synthesis, crystal structure and photoluminescence property of a Cd(II) framework complex [Cd(2-PTZ)₂(H₂O)₂] {2-PTZ = 5-(2-pyridyl tetrazolate)}

Abstract

A new 2D supramolecular (hydrogen bonded) Cd(II) network, [Cd(2-PTZ)₂(H₂O)₂]_n (2-PTZ = 5-(2-pyridyl) tetrazolate) has been synthesized by hydrothermal reaction and characterized by IR, and X-ray single crystal analysis.<i style=""> </i>In the molecular structure of the studied complex, Cd(II) ion is six-coordinated, which is completed by two water molecules and&nbsp; two 2-PTZ ligands which provide two nitrogens from the two tetrazolyl groups and two nitrogen atoms from pyridyl rings. The mononuclear units are assembled by intermolecular hydrogen bonding to generate two-dimensional sheets. Photoluminescence spectrum of the polymer complex exhibits strong blue emission at λ_{max&nbsp; =}439 nm in the solid state at room temperature.<i style=""> </i>