Reductive Disproportionation of CO2 Mediated by Bimetallic Nickelate(–I)/Group 13 Complexes

Matthew V. Vollmer, Ryan C. Cammarota, Connie C. Lu

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21 Scopus citations


The reactivity of bimetallic nickel(–I)/group 13 complexes towards carbon dioxide is presented. Reaction of the anionic [NiML] complexes, where M is Al or Ga, and L is {N[(o-C6H4)NCH2PiPr2]3}3–, with CO2 (1 atm) results in reductive disproportion of CO2 to afford CO32–, NiML, and the mono-carbonyl adducts, (CO)NiML. The (CO)NiML complexes, where M is Al, Ga, or In, were independently synthesized and characterized. The extent of CO activation varies slightly across the different group 13 ions, where the CO stretching frequency increases for M = Al < Ga < In.

Original languageEnglish (US)
Pages (from-to)2140-2145
Number of pages6
JournalEuropean Journal of Inorganic Chemistry
Issue number15
StatePublished - Apr 24 2019

Bibliographical note

Funding Information:
This work was supported by the US National Science Foundation (NSF, CHE-1665010). M. V. V. and R. C. C. were supported by Doctoral Dissertation Fellowships from the University of Minnesota. The authors thank Dr. Victor G. Young, Jr. for assistance with crystallographic studies. X-ray diffraction experiments were performed using a crystal diffractometer purchased through a grant from NSF (MRI-1229400) and the University of Minnesota.

Publisher Copyright:
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim


  • Carbon dioxide
  • Disproportionation
  • Group 13 elements
  • Lewis acids
  • Metalloradicals
  • Redox chemistry


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