Light Lanthanide Metallocenium Cations Exhibiting Weak Equatorial Anion InteractionsCitation formats

  • External authors:
  • Jingjing Liu
  • Jake A. Cleghorn
  • Yu Xuan Yeoh
  • Fabrizio Ortu
  • Conrad Goodwin

Standard

Light Lanthanide Metallocenium Cations Exhibiting Weak Equatorial Anion Interactions. / Liu, Jingjing; Reta, Daniel; Cleghorn, Jake A.; Yeoh, Yu Xuan; Ortu, Fabrizio; Goodwin, Conrad; Chilton, Nicholas; Mills, David.

In: Chemistry: A European Journal , 2019.

Research output: Contribution to journalArticle

Harvard

APA

Liu, J., Reta, D., Cleghorn, J. A., Yeoh, Y. X., Ortu, F., Goodwin, C., ... Mills, D. (2019). Light Lanthanide Metallocenium Cations Exhibiting Weak Equatorial Anion Interactions. Chemistry: A European Journal . https://doi.org/10.1002/chem.201901167

Vancouver

Liu J, Reta D, Cleghorn JA, Yeoh YX, Ortu F, Goodwin C et al. Light Lanthanide Metallocenium Cations Exhibiting Weak Equatorial Anion Interactions. Chemistry: A European Journal . 2019. https://doi.org/10.1002/chem.201901167

Author

Liu, Jingjing ; Reta, Daniel ; Cleghorn, Jake A. ; Yeoh, Yu Xuan ; Ortu, Fabrizio ; Goodwin, Conrad ; Chilton, Nicholas ; Mills, David. / Light Lanthanide Metallocenium Cations Exhibiting Weak Equatorial Anion Interactions. In: Chemistry: A European Journal . 2019.

Bibtex

@article{7f59dc84eb3c4d419bf8bf95113d3e19,
title = "Light Lanthanide Metallocenium Cations Exhibiting Weak Equatorial Anion Interactions",
abstract = "As the dysprosocenium complex [Dy(Cpttt)2][B(C6F5)4] (Cpttt = C5H2tBu3‐1,2,4, 1‐Dy) exhibits magnetic hysteresis at 60 K, similar lanthanide (Ln) complexes have been targeted in order to provide insights into this remarkable property. We recently reported homologous [Ln(Cpttt)2][B(C6F5)4] (1‐Ln) for all the heavier Ln from Gd‐Lu; herein, we extend this motif to the early Ln. We find, for the largest LnIII cations, that contact ion pairs [Ln(Cpttt)2{(C6F5‐κ1‐F)B(C6F5)3}] (1‐Ln; La‐Nd) are isolated from reactions of parent [Ln(Cpttt)2(Cl)] (2‐Ln) with [H(SiEt3)2][B(C6F5)4], where the anion binds weakly to the equatorial sites of [Ln(Cpttt)2]+ through a single fluorine atom in the solid state. For smaller SmIII, [Sm(Cpttt)2][B(C6F5)4] (1‐Sm) is isolated, which like heavier 1‐Ln does not exhibit equatorial anion interactions, but the EuIII analogue 1‐Eu could not be synthesised due to the facile reduction of EuIII precursors to EuII products. Thus with the exception of Eu and radioactive Pm this work constitutes a structurally similar family of Ln metallocenium complexes, over 50 years after the [M(Cp)2]+ series was isolated for the 3d metals.",
author = "Jingjing Liu and Daniel Reta and Cleghorn, {Jake A.} and Yeoh, {Yu Xuan} and Fabrizio Ortu and Conrad Goodwin and Nicholas Chilton and David Mills",
year = "2019",
doi = "10.1002/chem.201901167",
language = "English",
journal = "Chemistry: A European Journal",
issn = "0947-6539",
publisher = "John Wiley & Sons Ltd",

}

RIS

TY - JOUR

T1 - Light Lanthanide Metallocenium Cations Exhibiting Weak Equatorial Anion Interactions

AU - Liu, Jingjing

AU - Reta, Daniel

AU - Cleghorn, Jake A.

AU - Yeoh, Yu Xuan

AU - Ortu, Fabrizio

AU - Goodwin, Conrad

AU - Chilton, Nicholas

AU - Mills, David

PY - 2019

Y1 - 2019

N2 - As the dysprosocenium complex [Dy(Cpttt)2][B(C6F5)4] (Cpttt = C5H2tBu3‐1,2,4, 1‐Dy) exhibits magnetic hysteresis at 60 K, similar lanthanide (Ln) complexes have been targeted in order to provide insights into this remarkable property. We recently reported homologous [Ln(Cpttt)2][B(C6F5)4] (1‐Ln) for all the heavier Ln from Gd‐Lu; herein, we extend this motif to the early Ln. We find, for the largest LnIII cations, that contact ion pairs [Ln(Cpttt)2{(C6F5‐κ1‐F)B(C6F5)3}] (1‐Ln; La‐Nd) are isolated from reactions of parent [Ln(Cpttt)2(Cl)] (2‐Ln) with [H(SiEt3)2][B(C6F5)4], where the anion binds weakly to the equatorial sites of [Ln(Cpttt)2]+ through a single fluorine atom in the solid state. For smaller SmIII, [Sm(Cpttt)2][B(C6F5)4] (1‐Sm) is isolated, which like heavier 1‐Ln does not exhibit equatorial anion interactions, but the EuIII analogue 1‐Eu could not be synthesised due to the facile reduction of EuIII precursors to EuII products. Thus with the exception of Eu and radioactive Pm this work constitutes a structurally similar family of Ln metallocenium complexes, over 50 years after the [M(Cp)2]+ series was isolated for the 3d metals.

AB - As the dysprosocenium complex [Dy(Cpttt)2][B(C6F5)4] (Cpttt = C5H2tBu3‐1,2,4, 1‐Dy) exhibits magnetic hysteresis at 60 K, similar lanthanide (Ln) complexes have been targeted in order to provide insights into this remarkable property. We recently reported homologous [Ln(Cpttt)2][B(C6F5)4] (1‐Ln) for all the heavier Ln from Gd‐Lu; herein, we extend this motif to the early Ln. We find, for the largest LnIII cations, that contact ion pairs [Ln(Cpttt)2{(C6F5‐κ1‐F)B(C6F5)3}] (1‐Ln; La‐Nd) are isolated from reactions of parent [Ln(Cpttt)2(Cl)] (2‐Ln) with [H(SiEt3)2][B(C6F5)4], where the anion binds weakly to the equatorial sites of [Ln(Cpttt)2]+ through a single fluorine atom in the solid state. For smaller SmIII, [Sm(Cpttt)2][B(C6F5)4] (1‐Sm) is isolated, which like heavier 1‐Ln does not exhibit equatorial anion interactions, but the EuIII analogue 1‐Eu could not be synthesised due to the facile reduction of EuIII precursors to EuII products. Thus with the exception of Eu and radioactive Pm this work constitutes a structurally similar family of Ln metallocenium complexes, over 50 years after the [M(Cp)2]+ series was isolated for the 3d metals.

U2 - 10.1002/chem.201901167

DO - 10.1002/chem.201901167

M3 - Article

JO - Chemistry: A European Journal

JF - Chemistry: A European Journal

SN - 0947-6539

ER -