Syntheses, Crystal Structure and Characterizations of a New Lead (II) Coordination Compound [Pb(phen)(NO₃)₂(H₂O)]_n

Jin-An Zhao is also affiliated with the Department of Chemistry, Pingdingshan Institute of Technology, Pingdingshan, Henan 467001, P. R. China.

Abstract

A new coordination compound, [Pb(phen)(NO₃)₃(H₂O)]_n(1), has been synthesized by the reaction of Pb(NO₃)₂ with phenanthroline (phen) in water. The complex was crystallized using the solution diffusion method and structurally characterized by X‐ray single crystal diffraction. The compound 1 crystallizes in the monoclinic space group P2₁/c. In the structure unit of the compound 1, the central Pb(II) ion is six‐coordinated with two nitrogen atoms from the phen, three oxygen atoms from three nitrate groups and one oxygen atom from a water molecule. The [Pb(phen)(NO₃)₂(H₂O)] units are linked together by O1, N3, and O3 bridge from nitrate groups, resulting in the formation of one‐dimensional chain structures. It is further connected by hydrogen bonds and π‐π interactions formed a complicated supramolecular compound. In addition, the spectral properties and TG analyses for the compound 1 are also discussed The IR, UV‐Vis spectra of the title compound as well as its thermodecomposition behavior were also discussed in detail in this paper.

Keywords:

• lead (II) complex
• phenanthroline
• crystal structure
• spectral properties

This work was supported by the National Natural Science Foundation of China (No. 20471053 and 90610001), the China National Key Basic Research Special Funds (No. 2005CB214501) and the Energy & Technology Program from Zhengzhou University.

Notes

Jin-An Zhao is also affiliated with the Department of Chemistry, Pingdingshan Institute of Technology, Pingdingshan, Henan 467001, P. R. China.