Activation of CO2 by a heterobimetallic Zr/Co complex

Jeremy P Krogman; Bruce M Foxman; Christine M Thomas

doi:10.1021/ja2071847

Activation of CO2 by a heterobimetallic Zr/Co complex

J Am Chem Soc. 2011 Sep 21;133(37):14582-5. doi: 10.1021/ja2071847. Epub 2011 Aug 29.

Authors

Jeremy P Krogman¹, Bruce M Foxman, Christine M Thomas

Affiliation

¹ Department of Chemistry, Brandeis University, 415 South Street, MS 015, Waltham, Massachusetts 02454, USA.

PMID: 21875088
DOI: 10.1021/ja2071847

Abstract

At room temperature, the early/late heterobimetallic complex Co((i)Pr(2)PNMes)(3)Zr(THF) has been shown to oxidatively add CO(2), generating (OC)Co((i)Pr(2)PNMes)(2)(μ-O)Zr((i)Pr(2)PNMes). This compound can be further reduced under varying conditions to generate either the Zr oxoanion (THF)(3)Na-O-Zr(MesNP(i)Pr(2))(3)Co(CO) or the Zr carbonate complex (THF)(4)Na(2)(CO(3))-Zr(MesNP(i)Pr(2))(3)Co(CO). Additionally, reactivity of the CO(2)-derived product has been observed with PhSiH(3) to generate the Co-hydride/Zr-siloxide product (OC)(H)Co((i)Pr(2)PNMes)(3)ZrOSiH(2)Ph.