Reversible CO 2  Addition to a Si=O Bond and Synthesis of a Persistent SiO 2 –CO 2  Cycloadduct Stabilized by a Lewis Donor–Acceptor Ligand | Zendy

Rodriguez Ricardo | Zendy; AlvaradoBeltran Isabel | Zendy; Saouli Jérémy | Zendy; SaffonMerceron Nathalie | Zendy; Baceiredo Antoine | Zendy; Branchadell Vicenç | Zendy; Kato Tsuyoshi | Zendy

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Reversible CO 2 Addition to a Si=O Bond and Synthesis of a Persistent SiO 2 –CO 2 Cycloadduct Stabilized by a Lewis Donor–Acceptor Ligand

Author(s) -

Rodriguez Ricardo,

AlvaradoBeltran Isabel,

Saouli Jérémy,

SaffonMerceron Nathalie,

Baceiredo Antoine,

Branchadell Vicenç,

Kato Tsuyoshi

Publication year - 2018

Publication title -

angewandte chemie

Language(s) - English

Resource type - Journals

eISSN - 1521-3757

pISSN - 0044-8249

DOI - 10.1002/ange.201709787

Subject(s) - chemistry , photodissociation , dimer , cycloaddition , ligand (biochemistry) , acceptor , lewis acids and bases , derivative (finance) , photochemistry , carbonate , catalysis , organic chemistry , biochemistry , physics , receptor , financial economics , economics , condensed matter physics

The donor‐stabilized sila‐β‐lactone 1 reacts with CO 2 via a remarkable reversible [2+2]‐cycloaddition reaction to form the spiro‐cyclic silicon carbonate derivative 2 . Furthermore, photolysis of 2 under pressure of CO 2 affords the first persistent SiO 2 –CO 2 cycloadduct 3 , presenting a Si 2 O 4 ‐like structure, which is stabilized by a Lewis donor–acceptor type ligand. As predicted by theoretical calculations, in marked contrast to the thermodynamically stable SiO 2 dimer, the SiO 2 –CO 2 mixed cycloadduct 3 is labile and readily releases CO 2 .

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