Diane Dickie - Formation of a Reversible, Intramolecular Main-Group Metal-CO2 Adduct.

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  Publication Details (including relevant citation   information): Dickie,Diane A., Coker,Eric N.,   Kemp,Richard A., Inorg. Chem. (Washington, DC, U. S.),   2011, 50 (22), pp 11288-11290

  Abstract: The P,P-chelated stannylene   [(i-Pr2P)2N]2Sn takes up 2 equiv. of carbon dioxide (CO2) to form   an unusual product in which CO2 binds to the Sn and P atoms, thus   forming a six-membered ring complex. Gentle heating of the solid   product releases CO2, indicating that CO2 is bound as an adduct   to the main-group complex. The groups bound to the CO2 fragment   are not particularly sterically crowded or highly acidic, thus   indicating that "frustrated" Lewis acid-base pairs are not   required in the binding of CO2 to main-group elements. [on   SciFinder(R)]

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