Related Experiment Video
Updated: Jun 21, 2026

Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
Published on: June 9, 2023
Metal-pi interactions dominate in the solid-state structures of molecular heterobimetallic alkali-metal-europium(II)
Glen B Deacon1, Peter C Junk, Graeme J Moxey
1School of Chemistry, Box 23, Monash University, Clayton, Victoria, Australia.
Abstract:
Treatment of Eu metal, 2,6-diphenylphenol (HOdpp), and MOdpp (M=Na, K) at elevated temperature in the presence of mercury afforded heterobimetallic complexes which were structurally characterized after crystallization from toluene. The structures of [MEu(Odpp)(3)]nPhMe (M=Na, n=1, 1; K, n=2.5, 2) consist solely of bridging aryloxide ligands and feature extensive pi-Ph-metal interactions. Rather than a heterobimetallic species, treatment of Eu metal and HOdpp with LiOdpp under similar conditions afforded a number of products, including a mixed-valent europium complex, [Eu(2)(Odpp)(3)][Eu(Odpp)(4)]4 PhMe (3). The structural framework of the [Eu(2)(Odpp)(3)](+) cation of 3 is similar to that of the molecular heterobimetallics 1 and 2, including the presence of pi-Ph-Eu interactions. The reluctance of the reaction to provide a Eu/Li heterobimetallic complex was exemplified by the simultaneous crystallization of [Eu(2)(Odpp)(4)]PhMe (6) and the homoleptic cubane [Li(4)(Odpp)(4)]2 C(6)H(14) (5) from toluene/hexane.
More Related Videos
11:04Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
Published on: September 7, 2019
07:20Discovery and Synthesis Optimization of Isoreticular Al(III) Phosphonate-Based Metal-Organic Framework Compounds Using High-Throughput Methods
Published on: October 6, 2023
Related Concept Videos
Complexation Equilibria: Factors Influencing Stability of Complexes
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...
Complexation Equilibria: The Chelate Effect
Valence Bond Theory
Properties of Organometallic Compounds
Crystal Field Theory - Octahedral Complexes
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...