Related Experiment Video
Updated: Jul 20, 2026

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature
Published on: September 23, 2018
An unprecedented type of linear metallocene with an f-element
Jérôme Maynadié1, Jean-Claude Berthet, Pierre Thuéry
1Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, CEA Saclay, Gif-sur-Yvette, France.
Abstract:
The dication [(C5Me5)2U(NCMe)5]2+ was obtained by dissolving (C5Me5)2UI2 in acetonitrile or by treating (C5Me5)2UMe2 with HNEt3BPh4 in acetonitrile. The crystal structure revealed that the cyclopentadienyl rings are parallel and equidistant to the plane defined by the metal center and nitrogen atoms of the five MeCN ligands. Fifty years after the discovery of ferrocene, this compound represents a unique example of linear metallocene with auxiliary ligands in the equatorial girdle; it is also the first linear sandwich complex of an f-element.
Related Concept Videos
Periodic Classification of the Elements
Bonding in Metals
Metallic Solids
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...
Properties of Transition Metals
Valence Bond Theory
Imperfections in Crystal Structure: Non-Stoichiometric Defects

