A Bridging Carbonyl of Unlikely Geometry: On the True Nature of the Technetium Complex [Tc2(μ-CO)2(CO)6(NC5H5)2]

17 September 2020, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

The title compound was reported a decade ago by Zuhayra et al as the main product of the reaction of [Tc2(CO)10] with pyridine at room temperature. Chemical information, coupled to density functional theory calculations, have now been used to show that the "bridging carbonyls" then proposed from the crystallographic data most likely correspond to bridging hydroperoxide groups.

Keywords

technetium-99g
binuclear complexes
carbonyl complexes
hydroperoxide complexes

Supplementary materials

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Comment number 1, Miguel A. Ruiz: Oct 05, 2023, 12:45

The raw diffraction data of the complex under discussion have been re-processed. It has been now concluded that the disputed "bridging carbonyls" actually correspond to bridging methoxide groups. See: Zuhayra, M.; Lützen, A.; Ruiz, M. A. Acta. Crystallogr. C, 2023, 79, 395-398 (DOI: 10.1107/S2053229623007957)