Issue 0, 1971

Single-crystal magnetic properties of lanthanide complexes. Part III. Tri-iodohexakis(antipyrine)terbium(III)

Abstract

The principal magnetic moments of crystals of tri-iodohexakis(antipyrine)terbium(III)(antipyrine is 2,3-dimethyl-1-phenyl-Δ3-pyrazolin-5-one) have been measured in the temperature range 300–90 K. These are interpreted within a free-ion f8, 7F term as basis perturbed by spin–orbit coupling and a crystal field of D3d symmetry. Values related to the coefficient of the second-order potential and for the fourth-order radial parameter [A20r2〉 and ρ4, respectively] have been determined and the irrelevance of the sixth-order radial parameter, ρ6, demonstrated. The results are compared with previous measurements down to ca. 2 K. In particular, comparison of the calculated ground-state ‘zero-field splitting’ with that previously deduced from magnetization curves demonstrates the relevance of calculations including the complete 7F term as basis rather than those involving only the 7F6 and 7F5 states, which are sufficient to account for the magnetic susceptibilities at higher temperatures.

Article information

Article type
Paper

J. Chem. Soc. A, 1971, 2605-2612

Single-crystal magnetic properties of lanthanide complexes. Part III. Tri-iodohexakis(antipyrine)terbium(III)

M. Gerloch and D. J. Mackey, J. Chem. Soc. A, 1971, 2605 DOI: 10.1039/J19710002605

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements