Formation of a reversible, intramolecular main-group metal-CO2 adduct |
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Authors: | Dickie Diane A Coker Eric N Kemp Richard A |
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Affiliation: | Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States. |
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Abstract: | The P,P-chelated stannylene [(i-Pr(2)P)(2)N](2)Sn takes up 2 equiv of carbon dioxide (CO(2)) to form an unusual product in which CO(2) binds to the Sn and P atoms, thus forming a six-membered ring complex. Gentle heating of the solid product releases CO(2), indicating that CO(2) is bound as an adduct to the main-group complex. The groups bound to the CO(2) fragment are not particularly sterically crowded or highly acidic, thus indicating that "frustrated" Lewis acid-base pairs are not required in the binding of CO(2) to main-group elements. |
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