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Title: Early-lanthanide(III) acetonitrile–solvento adducts with iodide and noncoordinating anions

Journal Article · · Inorganic Chemistry
 [1];  [2];  [2];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Transylvania Univ., Lexington, KY (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Dissolution of LnI3 (Ln = La, Ce) in acetonitrile (MeCN) results in the highly soluble solvates LnI3(MeCN)5 [Ln = La (1), Ce (2)] in good yield. The ionic complex [La(MeCN)9][LaI6] (4), containing a rare homoleptic La3+ cation and anion, was also isolated as a minor product. Extending this chemistry to NdI3 results in the consistent formation of the complex ionic structure [Nd(MeCN)9]2[NdI5(MeCN)][NdI6][I] (3), which contains an unprecedented pentaiodide lanthanoid anion. Also described is the synthesis, isolation, and structural characterization of several homoleptic early-lanthanide MeCN solvates with noncoordinating anions, namely, [Ln(MeCN)9][AlCl4]3 [Ln = La (5), Ce (6), Nd (7)]. Notably, complex 6 is the first homoleptic cerium MeCN solvate reported to date. All reported complexes were structurally characterized by X-ray crystallography, as well as by IR spectroscopy and CHN elemental analysis. Furthermore, complexes 1–3 were also characterized by thermogravimetric analysis coupled with mass spectrometry to further elucidate their bulk composition in the solid-state.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1239567
Report Number(s):
LA-UR-15-27560
Journal Information:
Inorganic Chemistry, Vol. 54, Issue 24; ISSN 0020-1669
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

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Cited By (4)

Solvent-responsive cavitand lanthanum complex journal January 2019
Diethyl ether adducts of trivalent lanthanide iodides journal January 2019
Peculiarities of the Interaction of Rare-Earth Metal Thiocyanates with s-Triazine journal December 2018
Solvoluminescence of Cerium(III) Thiocyanate Complex journal July 2019


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