Induced fac- mer rearrangements in {M(CO)3}+ complexes (M = Re, 99(m)Tc) by a PNP ligand

Manuel Luca Besmer; Flurina Schwitter; Federica Battistin; Henrik Braband; Thomas Fox; Bernhard Spingler; Roger Alberto

doi:10.1039/d3dt03992g

Induced fac- mer rearrangements in {M(CO)₃}⁺ complexes (M = Re, ^99(m)Tc) by a PNP ligand

Dalton Trans. 2024 Jan 23;53(4):1434-1438. doi: 10.1039/d3dt03992g.

Authors

Manuel Luca Besmer¹, Flurina Schwitter¹, Federica Battistin¹, Henrik Braband¹, Thomas Fox¹, Bernhard Spingler¹, Roger Alberto¹

Affiliation

¹ Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland. manuel.besmer@chem.uzh.ch.

PMID: 38189151
DOI: 10.1039/d3dt03992g

Abstract

The fac-mer rearrangements in [MX₃(CO)₃]^2- (M = Re, ⁹⁹Tc) induced by a pincer-type ligand (PNP) and a "halide scavenger" are reported. The reactions of fac-[^99mTc(CO)₃(OH₂)₃]⁺ or [^99mTcO₄]^- in saline both yield mer-[^99mTc(PNP)(CO)₃]⁺, the first example of a mer-{^99mTc(CO)₃}⁺ type complex. In contrast, reactions with terpyridine (terpy) only gave the facial κ²-terpy complexes with Re and ⁹⁹Tc.