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N,C,N-Coordinated Stannylenes as Ligands in Ag(I) and Au(I) Complexes
Rok: 2021
Druh publikace: článek v odborném periodiku
Název zdroje: Organometallics
Název nakladatele: American Chemical Society
Místo vydání: Washington
Strana od-do: 783-791
Tituly:
Jazyk Název Abstrakt Klíčová slova
cze N,C,N-koordinovaný stannylen jako ligand pro Ag(I) a Au(I) komplexy Byly studovány N,C,N-koordinované stannyleny jako ligandy pro Ag(I) a Au(I) komplexy. N,C,N-koordinovaný stannylen; ligand; AgI; AuI
eng N,C,N-Coordinated Stannylenes as Ligands in Ag(I) and Au(I) Complexes The intramolecularly N -> Sn coordinated stannylene L(CI)Sn (I), where L is {2,6-(Me2NCH2)(2)C6H3}(-) , has been used as a ligand for silver(I) and gold(I) compounds. The reactions of 1 with AgX (X = OAc, acac, and Hfac) proceeded as substitution reactions and generated in situ the stannylenes L(X)Sn and AgCl, subsequently giving the complexes [{L(OAc)Sn}center dot AgCl](4) (2), [{L(acac)Sn}center dot AgCI](4) (3), and [{L(Hfac)Sn}(2)center dot Ag(Hfac)] (4). In contrast, reactions of 1 with [(THF)Ag{HB(3,5-(CF3)(2)Pz)(3)}] and [(Me2S)center dot AuCl] proceeded without any evidence of chloride substitution and provided the complexes [{L(Cl)Sn}center dot Ag{HB(3,5-(CF3)(2)Pz)(3)}] (5) and [{L(Cl)Sn}center dot AuCl] (6). All complexes were characterized by multinuclear NMR spectroscopy, electrospray ionization mass spectrometry, and single crystal X-ray diffraction analysis. DFT calculations accompany the experimental work. While the theoretical studies suggested the presence of the Sn -> Ag interactions in 2-5, the covalent nature of the Sn-Au bond was evaluated for 6. 1st structural-characterization; coordination chemistry; transition-metals; gold carbenes; basis-sets; silver; donor; catalysis; elements; copper