Na[Tc(CO)(CN p-F-ArDArF2)4]: an isocyanide analogue of the elusive Na[Tc(CO)5]

Federico Salsi; Adelheid Hagenbach; Joshua S Figueroa; Ulrich Abram

doi:10.1039/d3cc00946g

Na[Tc(CO)(CN p-F-Ar^DArF2)₄]: an isocyanide analogue of the elusive Na[Tc(CO)₅]

Chem Commun (Camb). 2023 Mar 30;59(27):4028-4031. doi: 10.1039/d3cc00946g.

Authors

Federico Salsi¹, Adelheid Hagenbach¹, Joshua S Figueroa², Ulrich Abram¹

Affiliations

¹ Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstr. 34/36, Berlin D-14195, Germany. ulrich.abram@fu-berlin.de.
² Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive MC 0358, La Jolla, CA 92193, USA. jsfig@ucsd.edu.

PMID: 36924117
DOI: 10.1039/d3cc00946g

Abstract

The first crystalline technetium complex in a negative oxidation state, [Tc^-I(CO)(CNp-F-Ar^DArF2)₄]^-, was isolated and structurally characterized as its [Na(Crypt-2.2.2)]⁺ salt. It mirrors the properties of the textbook organometallic compound Na[Tc(CO)₅], which has eluded isolation and structural characterization until today. [Na(Crypt-2.2.2)][Tc^-I(CO)(CNp-F-Ar^DArF2)₄] reacts expectedly as a nucleophile, which is demonstrated by reactions with HCl and ClSnMe₃. They give the unprecedented monohydrido and trimethylstannyl complexes of technetium.