Amine Boranes Dehydrogenation Mediated by an Unsymmetrical Iridium Pincer Hydride: (PCN) vs (PCP) Improved Catalytic Performance
Lapo Luconi
1
,
Elena S Osipova
2
,
Giuliano Giambastiani
1, 3, 4
,
Andrea Rossin
1
,
Oleg A. Filippov
2
,
Ekaterina Titova
2, 5
,
Alexander Pavlov
2
,
Publication type: Journal Article
Publication date: 2018-08-29
scimago Q2
wos Q1
SJR: 0.676
CiteScore: 5.1
Impact factor: 2.9
ISSN: 02767333, 15206041
Organic Chemistry
Inorganic Chemistry
Physical and Theoretical Chemistry
Abstract
The IrIII hydride (tBuPCN)IrHCl (1) containing the tridendate unsymmetrical pincer ligand tBuPCN– {tBuPCN(H) = 1-[3-[(di-tert-butylphosphino)methyl]phenyl]-1H-pyrazole} has been exploited as ammonia borane (NH3BH3, AB) and amine boranes dehydrogenation catalyst in THF solution at ambient temperature. 1 releases one H2 equivalent per AB equivalent, with concomitant cyclic poly(aminoboranes) formation [B-(cyclotriborazanyl)-amine-borane (BCTB) and cyclotriborazane (CTB)] as the final “spent fuel”. 1 has been found to have superior catalytic activity than its symmetrical analogue (tBuPCP)IrHCl, with recorded TOF values of 580 h–1 (AB in THF) and 401 h–1 (DMAB in toluene) at ambient temperature. The reaction has been analyzed experimentally through multinuclear [11B, 31P{1H}, 1H] NMR and IR spectroscopy, kinetic rate measurements, and kinetic isotope effect determination with deuterated AB isotopologues. The hydride/borohydride intermediate (tBuPCN)IrH(η2-BH4) (2) is the catalyst resting state formed during t...
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37
Total citations:
37
Citations from 2024:
5
(13%)
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MLA
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GOST
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Luconi L. et al. Amine Boranes Dehydrogenation Mediated by an Unsymmetrical Iridium Pincer Hydride: (PCN) vs (PCP) Improved Catalytic Performance // Organometallics. 2018. Vol. 37. No. 18. pp. 3142-3153.
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Luconi L., Osipova E. S., Giambastiani G., Peruzzini M., Rossin A., Belkova N. V., Filippov O. A., Titova E., Pavlov A., Shubina E. S. Amine Boranes Dehydrogenation Mediated by an Unsymmetrical Iridium Pincer Hydride: (PCN) vs (PCP) Improved Catalytic Performance // Organometallics. 2018. Vol. 37. No. 18. pp. 3142-3153.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1021/acs.organomet.8b00488
UR - https://doi.org/10.1021/acs.organomet.8b00488
TI - Amine Boranes Dehydrogenation Mediated by an Unsymmetrical Iridium Pincer Hydride: (PCN) vs (PCP) Improved Catalytic Performance
T2 - Organometallics
AU - Luconi, Lapo
AU - Osipova, Elena S
AU - Giambastiani, Giuliano
AU - Peruzzini, Maurizio
AU - Rossin, Andrea
AU - Belkova, Natalia V
AU - Filippov, Oleg A.
AU - Titova, Ekaterina
AU - Pavlov, Alexander
AU - Shubina, Elena S.
PY - 2018
DA - 2018/08/29
PB - American Chemical Society (ACS)
SP - 3142-3153
IS - 18
VL - 37
SN - 0276-7333
SN - 1520-6041
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2018_Luconi,
author = {Lapo Luconi and Elena S Osipova and Giuliano Giambastiani and Maurizio Peruzzini and Andrea Rossin and Natalia V Belkova and Oleg A. Filippov and Ekaterina Titova and Alexander Pavlov and Elena S. Shubina},
title = {Amine Boranes Dehydrogenation Mediated by an Unsymmetrical Iridium Pincer Hydride: (PCN) vs (PCP) Improved Catalytic Performance},
journal = {Organometallics},
year = {2018},
volume = {37},
publisher = {American Chemical Society (ACS)},
month = {aug},
url = {https://doi.org/10.1021/acs.organomet.8b00488},
number = {18},
pages = {3142--3153},
doi = {10.1021/acs.organomet.8b00488}
}
Cite this
MLA
Copy
Luconi, Lapo, et al. “Amine Boranes Dehydrogenation Mediated by an Unsymmetrical Iridium Pincer Hydride: (PCN) vs (PCP) Improved Catalytic Performance.” Organometallics, vol. 37, no. 18, Aug. 2018, pp. 3142-3153. https://doi.org/10.1021/acs.organomet.8b00488.