Ligand Assisted CO <sub>2</sub> Activation and Catalytic Valorization by an NHI‐Stabilized Stannylene
نویسندگان
چکیده
The aryl(imino)stannylene MesTer[N(IDipp)]Sn could be obtained by treating NHILi (NHI=N(IDipp), IDipp=C[N-(2,6-iPr2C6H3)CH]2) with MesTerSnCl (MesTer=2,6-Mes2C6H3) and offers a unique reactivity pattern compared to conventional single site tetrylene catalyzed CO2 reduction reactions. Sn(II) center, stabilized the NHI ligand enabled sequestration valorization of C1 feedstock stoichiometrically, as well catalytically, utilizing HBpin (pin=pinacolato) reductant. experimental comparison aryl(amido)stannylene MesTer(NPh2)Sn aryl(phosphinidene)stannylene MesTer[P(IDipp)]Sn, computational analysis, rationalize electronic features key role in process. In case phosphorus congener, Sn−P bonding pronounced double-bond character is obtained, which prevents swift dissociation, thus preventing uptake. Instead, hard/soft mismatch between tin induces zwitterionic single-bond character, switching on intermediate dissociation Sn(II)/NHI, followed hydride mediated step, allows for efficient catalysis under mild conditions.
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ژورنال
عنوان ژورنال: Chemcatchem
سال: 2022
ISSN: ['1867-3899', '1867-3880']
DOI: https://doi.org/10.1002/cctc.202201048