Open AccessLanthanidocenes: Synthesis, Structure, and Bonding of Linear Sandwich Complexes of Lanthanides
Author(s) -
Mathieu Xémard,
Sébastien Zimmer,
Marie Cordier≈,
Violaine Goudy,
Louis Ricard,
Carine Clavaguéra,
Grégory Nocton
Publication year - 2018
Publication title -
journal of the american chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 7.115
H-Index - 612
eISSN - 1520-5126
pISSN - 0002-7863
DOI - 10.1021/jacs.8b09081
Subject(s) - chemistry , isostructural , lanthanide , ferrocene , ligand (biochemistry) , crystallography , isomerization , ring (chemistry) , computational chemistry , crystal structure , organic chemistry , ion , biochemistry , receptor , electrode , electrochemistry , catalysis
The Article presents the synthesis, structure, and bonding of a series of neutral and linear sandwich compounds with the cyclononatetraenyl (Cnt) ligand and divalent lanthanides. These compounds account for the emergence of the lanthanidocene series in reference to the ferrocene and uranocene. The synthetic strategy uses the solubility difference between two conformational isomers of the ligand, as well as the isomerization of the compounds induced by solvent coordination, yielding the isomorphous and isostructural neutral and rigorously linear sandwich complexes. The molecular structures feature a Cnt-Ln-Cnt angle of 180° and a ring size close to the Cnt-Cnt(centroid) distance. A qualitative molecular orbital diagram is provided, in D 9 d symmetry, and DFT calculations enforce the bonding model.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom