Synthesis and Raman Spectra of [Nd(XeF2)n](AsF6)3 (n=3, 2.5) and Crystal Structure of [Nd(XeF2)2.5](AsF6)3

Tramšek, Melita; Lork, Enno; Mews, Rüdiger; Žemva, Boris

doi:10.1006/jssc.2001.9280

Cited by 19 publications

(21 citation statements)

References 21 publications

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“…Each AsF 6 À is trans connected to the other lanthanide centers forming tridimensional network. In the case of compounds [Ln(XeF 2 )-n ](AF 6 ) 3 (Ln = La and Nd; A = As and Sb) the cis connection of AF 6 À groups with other lanthanide centers resulted in the formation of chains ([Nd(XeF 2 ) 3 ](SbF 6 ) 3 ) or double chains ([Nd(XeF 2 ) 2.5 ](AsF 6 ) 3 ) [27,28]. Both compounds (Ce and Pr) are isomorphous.…”

Section: Synthesis and Structure Of [M(asf 3 ) 3 ](Asf 6 ) 3 (M = Ce mentioning

confidence: 99%

Synthesis of novel salts with HF, AsF3 and XeF2 as ligands to metal cations

Tramšek

Žemva

2006

Journal of Fluorine Chemistry

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Section: Synthesis and Structure Of [M(asf 3 ) 3 ](Asf 6 ) 3 (M = Ce mentioning

confidence: 99%

Synthesis of novel salts with HF, AsF3 and XeF2 as ligands to metal cations

Tramšek

Žemva

2006

Journal of Fluorine Chemistry

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“…The next example are the compounds Nd(XeF 2 ) 2.5 (AsF 6 ) 3 , 1 [4] and Nd(XeF 2 ) 3 (SbF 6 ) 3 , 2 [18]. AsF 6 À is a better Lewis base as SbF 6 À , which means that the interactions of the six AsF 6 À anions with Nd 3+ ion are stronger as similar interactions with the SbF 6 À anions.…”

Section: The Influence Of the Anionmentioning

confidence: 99%

“…2), double-chain (e.g. [Nd(Xe-F 2 ) 2.5 ](AsF 6 ) 3 [4]), layer structure (e.g. [Ca(XeF 2 ) 4 ](AsF 6 ) 2 [7]), strongly interconnected double layers (e.g.…”

Section: Review Of the Structures [M N+ (Xef 2 ) P ](Afmentioning

confidence: 99%

“…The first compound in which noble gas fluoride, XeF 2 , was observed to be bound directly to the metal center was [Ag(XeF 2 ) 2 ](AsF 6 ) [2]. In the last years, a whole series of the coordination compounds with XeF 2 as a ligand to the metal ion was isolated and many crystal structures of these compounds were determined [3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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New class of coordination compounds with noble gas fluorides as ligands to metal ions

Tavčar

Tramšek

Bunic

et al. 2004

Journal of Fluorine Chemistry

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“…[19,20] A complete report on the synthesis and characterization is available for [Nd(XeF 2 ) n ][AsF 6 ] 3 (n = 3 and 2.5). [21] Crystal structure of [Nd(XeF 2 ) 2. 5.…”

Section: Introductionmentioning

confidence: 99%

XeF₂ Coordination to La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy and Y in Rare‐Earth Metal(III) Tetrafluoridoborates

Mazej

Goreshnik

2021

Eur J Inorg Chem

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Removal of volatiles at 243 K from solutions of completely dissolved LnF 3 (Ln = La-Dy and Y) and XeF 2 (molar ratio 1 : 3) in anhydrous HF acidified with an excess of BF 3 resulted in [Ln(XeF 2 ) 3 ](BF 4 ) 3 salts. Isolated solids are stable at 298 K and give similar Raman spectra. [La(XeF 2 ) 3 ](BF 4 ) 3 crystallizes in the monoclinic space group C2/m at 150 K. Each La atom is coordinated with three XeF 2 ligands. Six F atoms provided by six bridging BF 4 units, that connect the neighboring La 3 + atoms into columns, complete the nine-fold coordination of each La atom. Chemical reactions carried out in the same way but with molar ratio LnF 3 : XeF 2 = 1 : 1 yielded [Ln(XeF 2 )](BF 4 ) 3 salts (La -Nd). Crystal structures of La and Nd salts are isotypic and crystallize in the monoclinic space group P2 1 /m at 150 K (La) and 200 K (Nd). Each Ln center is coordinated by nine fluorine atoms provided by eight BF 4 units and one XeF 2 ligand. The BF 4 groups interconnect the Ln atoms into two-dimensional layers. With molar ratio LnF 3 : XeF 2 = 1 : 2 and the same synthetic approach, only La yielded [La(XeF 2 ) 2 ](BF 4 ) 3 salt. Prolonged pumping of [Ln(XeF 2 ) n ](BF 4 ) 3 (n = 3, 2, 1) at 298 K or attempts of the isolation at 298 K resulted in products with lower content of XeF 2 or in mixtures of various products. In addition to [Ln-(XeF 2 )](BF 4 ) 3 and LnF 3 /BF 3 products, the [Ln(XeF 2 )]F(BF 4 ) 2 salts (Ln = La, Nd, Sm, Eu, Tb, Dy and Y) also formed. The crystal structures of LaF(HF)(BF 4 ) 2 and LaF(BF 4 ) 2 side products were determined.

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Synthesis and Raman Spectra of [Nd(XeF2)n](AsF6)3 (n=3, 2.5) and Crystal Structure of [Nd(XeF2)2.5](AsF6)3

Cited by 19 publications

References 21 publications

Synthesis of novel salts with HF, AsF3 and XeF2 as ligands to metal cations

Synthesis of novel salts with HF, AsF3 and XeF2 as ligands to metal cations

New class of coordination compounds with noble gas fluorides as ligands to metal ions

XeF₂ Coordination to La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy and Y in Rare‐Earth Metal(III) Tetrafluoridoborates

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Synthesis and Raman Spectra of [Nd(XeF2)n](AsF6)3 (n=3, 2.5) and Crystal Structure of [Nd(XeF2)2.5](AsF6)3

Cited by 19 publications

References 21 publications

Synthesis of novel salts with HF, AsF3 and XeF2 as ligands to metal cations

Synthesis of novel salts with HF, AsF3 and XeF2 as ligands to metal cations

New class of coordination compounds with noble gas fluorides as ligands to metal ions

XeF2 Coordination to La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy and Y in Rare‐Earth Metal(III) Tetrafluoridoborates

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Product

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XeF₂ Coordination to La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy and Y in Rare‐Earth Metal(III) Tetrafluoridoborates