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Dalton Transactions
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COMMUNICATION
Journal Name
DOI: 10.1039/C9DT03088C
30, 4344–4362.
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Scheme 7. Catalytic hydrogenation of CO2 using catalysts
2 or 2’.
Conclusions
In conclusion, we report here CO2 activation by manganese
pincer complexes using two different modes of metal-ligand
cooperation: [1,2]-CO2 activation via amido/amino functionality
(complex
3)
and
[1,3]-CO2
activation
via
dearomatization/aromatization mode (complex 3’). Insertion of
CO2 to the Mn-H bonds forming the formate complexes 5 and
5’ are also reported. We also observed a relatively higher
catalytic activity of complex 2 compared to that of 2’ for the
hydrogenation of CO2 to formate.
Conflicts of interest
There are no conflicts to declare.
Acknowledgements
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D.M. holds the Israel Matz Professorial Chair. P.D. and A.K. are
thankful to the Planning and Budgeting Committee (PBC) for a
postdoctoral fellowship. PD also thanks Weizmann Institute of
Science for a senior postdoctoral fellowship. N. A. E.-J. thanks Mr.
Armando Jinich for a postdoctoral fellowship.
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