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Issue 29, 2010
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Non-classical divalent lanthanide complexes

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The synthesis of non-classical divalent lanthanide complexes, i.e. those not containing the classical samarium(II), europium(II) or ytterbium(II), was once thought impossible. Since 1997, when the first stable complex of thulium(II) was discovered, there has been many more examples of stable coordination and organometallic complexes of lanthanum(II), neodymium(II) and dysprosium(II) in addition to thulium(II), and the influence of the ligand system on the stability of the complexes is beginning to be understood. These non-classical divalent compounds show exceptional reactivity as some of them have been shown to activate dinitrogen at room temperature, together with related reduced divalent-like systems, and to undergo spontaneous intramolecular carbonhydrogen bond activation. Many more examples of non-classical divalent compounds together with new aspects of their exciting reactivity should be discovered in the near future.

Graphical abstract: Non-classical divalent lanthanide complexes

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Article information

21 Jan 2010
25 Feb 2010
First published
25 Mar 2010

Dalton Trans., 2010,39, 6589-6598
Article type

Non-classical divalent lanthanide complexes

F. Nief, Dalton Trans., 2010, 39, 6589
DOI: 10.1039/C001280G

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