Large Scale Synthesis of Dysprosium and Neodymium Diiodides

Evans, William J.; Allen, Nathan T.; Workman, Penny S.; Meyer, Jorg C.

doi:10.1021/ic0300316

Cited by 46 publications

(33 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Evans et al have refined this method with the use of a special furnace that can produce NdI 2 and DyI 2 in multigram quantities. 20 These findings were quickly followed by the crystal structures of DyI 2 (DME) 3 21 and NdI 2 (THF) 5 22 (Fig. 1), unambiguously demonstrating the divalent nature of the metals in these compounds.…”

Section: Franc ¸Ois Nief Has Been Employed By the French Cnrs As "Dir...mentioning

confidence: 74%

Non-classical divalent lanthanide complexes

Nief

2010

Dalton Trans.

View full text Add to dashboard Cite

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 carbon-hydrogen 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.

show abstract

Section: Franc ¸Ois Nief Has Been Employed By the French Cnrs As "Dir...mentioning

confidence: 74%

Non-classical divalent lanthanide complexes

Nief

2010

Dalton Trans.

View full text Add to dashboard Cite

show abstract

“…Evans and co-workers developed a more sophisticated apparatus which can produce LnI 2 salts in large quantities (up to 50 g) and with more controlled conditions ( Figure 5 ). 244 In Evans’ method, Ln metal powders (40 mesh) and iodine are placed in separate addition funnels ( F ) and the whole system is kept under static vacuum. The reactor is then heated to 450 °C inside a furnace, and the starting materials are added gradually into a quartz crucible ( E ) placed at the bottom of the reactor.…”

Section: Halidesmentioning

confidence: 99%

“…A , quartz tube; B , O-ring joint; C , connection to vacuum line; D , quartz addition tubes; E , quartz crucible; F , addition funnel; G , furnace. Reproduced from ref ( 244 ). Copyright 2003 American Chemical Society.…”

Section: Halidesmentioning

confidence: 99%

Rare Earth Starting Materials and Methodologies for Synthetic Chemistry

Ortu

2022

Chem. Rev.

View full text Add to dashboard Cite

The number of rare earth (RE) starting materials used in synthesis is staggering, ranging from simple binary metal-halide salts to borohydrides and “designer reagents” such as alkyl and organoaluminate complexes. This review collates the most important starting materials used in RE synthetic chemistry, including essential information on their preparations and uses in modern synthetic methodologies. The review is divided by starting material category and supporting ligands ( i.e. , metals as synthetic precursors, halides, borohydrides, nitrogen donors, oxygen donors, triflates, and organometallic reagents), and in each section relevant synthetic methodologies and applications are discussed.

show abstract

“…Large-scale synthetic methods for the preparation of DyI 2 and NdI 2 from the reaction of the elements with iodine have been reported. 32 The reduced halide La 2 I 5 is isotypic with La 2 Br 5 and Pr 2 X 5 (X = Cl, Br, I), featuring both seven and eight co-ordinate lanthanum. 33 The structure (pyramidal or planar) of isolated lanthanide trihalide molecules continue to attract interest.…”

Section: Binary Compoundsmentioning

confidence: 99%