Pressure-Induced Spectroscopic Changes in a Californium 1D Material Are Twice as Large as Found in the Holmium Analog

Joseph M. Sperling, Evan Warzecha, Cory J. Windorff, Bonnie E. Klamm, Alyssa N. Gaiser, Megan A. Whitefoot, Frankie D. White, Todd N. Poe, Thomas E. Albrecht-Schönzart

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15 Scopus citations

Abstract

In this study, the synthesis, characterization, and pressure response of a 1D californium mellitate (mellitate = 1,2,3,4,5,6-benzenehexacarboxylate) coordination polymer, Cf2(mell)(H2O)10·4H2O (Cf-1), are reported. The Cf-O lengths within the crystal structure are compared to its gadolinium (Gd-1) and holmium (Ho-1) analogs as well. These data show that the average Cf-O bond distance is slightly longer than the average Gd-O bond, consistent with trends in effective ionic radii. UV-vis-NIR absorption spectra as a function of pressure were collected using diamond-anvil techniques for both Cf-1 and Ho-1. These experiments show that the Cf(III) f → f transitions have a stronger dependence on pressure than that of the holmium analog. In the former case, the shift is nearly linear with applied pressure and averages 6.6 cm-1/GPa, whereas in the latter, it is <3 cm-1/GPa.

Original languageEnglish
Pages (from-to)10794-10801
Number of pages8
JournalInorganic Chemistry
Volume59
Issue number15
DOIs
StatePublished - Aug 3 2020
Externally publishedYes

Funding

This work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Heavy Elements Chemistry Program, under Award Number DE-FG02-13ER16414. The isotopes used in this research were supplied by the U.S. Department of Energy Isotope Program, managed by the Office of Science for Nuclear Physics. We also thank Radiation Safety at Florida State University specifically Jason Johnson and Ashley Gray for their input regarding this study before, during, and after the experiments with radioactive material.

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