Related Experiment Video
Updated: May 31, 2026

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
Published on: December 29, 2016
Poly[di-μ(2)-chlorido-tri-μ(2)-terephthalato-tetra-lead(II)]
Abstract:
The title compound, [Pb(4)(C(8)H(4)O(4))(3)Cl(2)](n), consists of a three-dimensional inorganic-organic hybrid framework. The asymmetric unit contains two Pb(2+) cations, one Cl(-) anion and one and a half terephthalate anions, the latter being completed by inversion symmetry. The two Pb(2+) cations are each surrounded by five O atoms and one Cl atom in the form of irregular polyhedra. The cations are linked by μ(2)-O and μ(2)-Cl atoms into binuclear units, which are further extended through Pb-O inter-actions into an undulated inorganic layer parallel to (001). These layers are connected along [001] by the terephthalate groups into a three-dimensional framework.
Related Concept Videos
Metal-Ligand Bonds
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
Coordination Compounds and Nomenclature
EDTA: Chemistry and Properties
Extraction: Advanced Methods
Predicting Molecular Geometry
Stereoisomerism
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...

