Abstract
Eighteen new lanthanide transition metal heterobimetallic compounds, Ln2Co(TeO3)2(SO4)2 (Ln = Y, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Lu) and Ln2Zn(TeO3)2(SO4)2 (Ln = Sm, Gd, Dy, Ho, Er, or Yb), have been prepared. They crystallize in triclinic space group P1Ì... with two different structural topologies occurring because of a reduction in the Ln3+ coordination number from eight to seven with the smallest lanthanides, Yb3+ and Lu3+. Magnetic susceptibility studies of compounds with diamagnetic lanthanides and lanthanide-like ions suggest that antiferromagnetic interactions occur between the Co2+ ions. Similarly, the replacement of Co2+ with Zn2+ yields Ln2Zn(TeO3)2(SO4)2 (Ln = Gd, Dy, Ho, or Er), and these materials allow for the resolution of the nature of the interactions between lanthanide ions. The data suggest that the short-range Ln3+·Ln3+ interactions are ferromagnetic. However, a wide range of ferro- and antiferromagnetic interactions occur between the Ln3+ and the Co2+ cations, with several compounds exhibiting short-range magnetic correlations below 25 K. The results are discussed and contrasted with those recently reported for the related Ln2Cu(TeO3)2(SO4)2 family. (Figure Presented).
| Original language | English |
|---|---|
| Pages (from-to) | 4606-4615 |
| Number of pages | 10 |
| Journal | Crystal Growth and Design |
| Volume | 15 |
| Issue number | 9 |
| DOIs | |
| State | Published - 2 Sep 2015 |
| Externally published | Yes |
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Dive into the research topics of 'Structure-Property Correlations in the Heterobimetallic 4f/3d Materials Ln2M(TeO3)2(SO4) (Ln = Y, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Lu; M = Co or Zn)'. Together they form a unique fingerprint.Cite this
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