DOI: 10.1098/rsta.2004.1541. Catalytic reduction of dinitrogen to ammonia at well-defined single metal sites

Catalytic reduction of dinitrogen to ammonia at well-defined single metal sites

10.1098/rsta.2004.1541

Crossref journal-article

The Royal Society

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences (175)

Abstract

Dinitrogen (N 2 ) is reduced to ammonia at room temperature and 1 atm with molybdenum catalysts that contain tetradentate [HIPTN 3 N] 3− triamidoamine ligands {[HIPTN 3 N] 3− =[{3,5-(2,4,6- i -Pr 3 C 6 H 2 ) 2 C 6 H 3 NCH 2 CH 2 } 3 N] 3− , an example being [HIPTN 3 N]Mo(N 2 )} in heptane. Slow addition of the proton source ({2,6-lutidinium}{BAr′ 4 }; Ar′=3,5-(CF 3 ) 2 C 6 H 3 ) and reductant (decamethyl chromocene) assure a high yield of ammonia (63–65% in four turnovers) versus dihydrogen formation. Numerous X-ray studies, along with isolation and characterization of seven intermediates in the proposed catalytic reaction (under noncatalytic conditions), suggest that N 2 is being reduced at a sterically protected, single Mo centre that cycles between states Mo(III), Mo(IV), Mo(V) and Mo(VI).

Bibliography

Schrock, R. R. (2005). Catalytic reduction of dinitrogen to ammonia at well-defined single metal sites. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 363(1829), 959â969.

Authors 1

Richard R Schrock (first)

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Dates

Type	When
Created	20 years, 4 months ago (May 4, 2005, 6:26 p.m.)
Deposited	4 years, 6 months ago (Feb. 19, 2021, 1:02 p.m.)
Indexed	1 year, 9 months ago (Nov. 14, 2023, 1:12 p.m.)
Issued	20 years, 4 months ago (April 15, 2005)
Published	20 years, 4 months ago (April 15, 2005)
Published Online	20 years, 4 months ago (April 15, 2005)
Published Print	20 years, 4 months ago (April 15, 2005)

Funders 0

None

BibTeX

@article{Schrock_2005, title={Catalytic reduction of dinitrogen to ammonia at well-defined single metal sites}, volume={363}, ISSN={1471-2962}, url={http://dx.doi.org/10.1098/rsta.2004.1541}, DOI={10.1098/rsta.2004.1541}, number={1829}, journal={Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences}, publisher={The Royal Society}, author={Schrock, Richard R}, year={2005}, month=apr, pages={959–969} }

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