Solvothermal Synthesis and Solid-State Characterization of Metal-Metal Bonded Tetracarboxylatoditechnetium(II,III) Polymers

Authors

William M. Kerlin, Lawrence Livermore National LaboratoryFollow
Frederic Poineau, University of Nevada, Las VegasFollow
Kenneth R. Czerwinski, University of Nevada, Las VegasFollow
Alfred P. Sattelberger, University of Nevada, Las Vegas
Paul M. Forster, University of Nevada, Las VegasFollow

Document Type

Article

Publication Date

2-14-2020

Publication Title

Polyhedron

Volume

180

First page number:

1

Last page number:

7

Abstract

Investigations of solvothermal reactions with pertechnetate, [TcO4]−, have produced four new low-valent Tc extended metal atom chain (EMAC) complexes with multiple metal-metal bonds. The thermal reaction of potassium pertechnetate with glacial acetic acid, under in-situ hydrogen production from the decomposition of sodium borohydride, yields purple elongated crystals determined to be tetraacetato ditechnetium (II,III) acetate (1), [Tc2(O2CCH3)4(μ-O2CCH3]n. Compound 1 was characterized by single crystal X-ray diffraction and its magnetic properties recorded between 10 and 300 K. Single crystal X-ray diffraction analysis of 1 indicates the Tc2+5 tetraacetato unit is linked by the carboxylate oxygens of the bridging acetate, similar to known chloride and bromide linkage polymers of composition [Tc2(μ-O2CCH3)4Cl]n, and [Tc2(μ-O2CCH3)4Br]n. Using the same synthetic method three similar compounds have been synthesized from propionic, benzoic and pivalic acid.

Keywords

Technetium; Potassium pertechnetate; Carboxylate-bridged dimers; Metal–metal bonds; Hydrothermal synthesis

Disciplines

Chemistry

Language

English

Repository Citation

Kerlin, W. M., Poineau, F., Czerwinski, K. R., Sattelberger, A. P., Forster, P. M. (2020). Solvothermal Synthesis and Solid-State Characterization of Metal-Metal Bonded Tetracarboxylatoditechnetium(II,III) Polymers. Polyhedron, 180 1-7.
http://dx.doi.org/10.1016/j.poly.2020.114418