Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstr. 34/36, Berlin D-14195, Germany.
Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive MC 0358, La Jolla, CA 92193, USA.
Chem Commun (Camb). 2023 Mar 30;59(27):4028-4031. doi: 10.1039/d3cc00946g.
The first crystalline technetium complex in a negative oxidation state, [Tc(CO)(CN-F-Ar)], 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)], which has eluded isolation and structural characterization until today. [Na(Crypt-2.2.2)][Tc(CO)(CN-F-Ar)] reacts expectedly as a nucleophile, which is demonstrated by reactions with HCl and ClSnMe. They give the unprecedented monohydrido and trimethylstannyl complexes of technetium.
第一个处于负氧化态的锝（Tc）的晶体配合物，[Tc(CO)(CN-F-Ar)]，被分离出来并作为其[Na(Crypt-2.2.2)]盐进行了结构表征。它反映了教科书中的有机金属化合物 Na[Tc(CO)]的性质，该化合物至今仍难以分离和结构表征。[Na(Crypt-2.2.2)][Tc(CO)(CN-F-Ar)]作为亲核试剂进行反应，这可以通过与 HCl 和 ClSnMe 的反应来证明。它们给出了前所未有的锝的单氢化物和三甲基锡配合物。
