The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.
Heterogeneous or Homogeneous Catalysis? Mechanistic Studies of the Rhodium-Catalyzed Dehydrocoupling of Amine-Borane and Phosphine-Borane Adducts
Abstract
In depth, comparative studies on the catalytic dehydrocoupling of the amine-borane adduct Me(2)NH.BH(3) (to form [Me(2)N-BH(2)](2)) and the phosphine-borane adduct Ph(2)PH.BH(3) (to form Ph(2)PH-BH(2)-PPh(2)-BH(3)) with a variety of Rh (pre)catalysts such as [[Rh(1,5-cod)(micro-Cl)](2)], Rh/Al(2)O(3), Rh(colloid)/[Oct(4)N]Cl, and [Rh(1,5-cod)(2)]OTf have been performed in order to determine whether the dehydrocoupling proceeds by a homogeneous or heterogeneous mechanism. The results obtained suggest that the catalytic dehydrocoupling of Me(2)NH.BH(3) is heterogeneous in nature involving Rh(0) colloids, while that of Ph(2)PH.BH(3) proceeds by a homogeneous mechanism even when starting with Rh(0) precursors such as Rh/Al(2)O(3). The catalytic dehydrocoupling reactions are thought to proceed by different mechanisms due to a combination of factors such as (i) the greater reducing strength of amine-borane adducts, (ii) the increased ease of dissociation of phosphine-borane adducts, and (iii) phosphine ligation and/or poisoning of active catalytic sites on metal colloids.
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Citations
Cites
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Self-citationFormation of Colloidal Transition Metals in Organic Phases and Their Application in Catalysis
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Cited by
B–N compounds for chemical hydrogenstorage
Hamilton, C. W., Baker, R. T., Staubitz, A., & Manners, I. (2009) · Chem. Soc. Rev. · doi:10.1039/b800312m · Cited by 1,087
Self-citationEfficient Catalysis of Ammonia Borane Dehydrogenation
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Xu, Q., & Chandra, M. (2006) · Journal of Power Sources · doi:10.1016/j.jpowsour.2006.09.043 · Cited by 601
Ott, L. S., & Finke, R. G. (2007) · Coordination Chemistry Reviews · doi:10.1016/j.ccr.2006.08.016 · Cited by 454
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Ni1-xPtx (x = 0−0.12) Hollow Spheres as Catalysts for Hydrogen Generation from Ammonia Borane
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Metadata
- Authors
- Jaska, C. A., & Manners, I.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2004-07-17
- Volume
- 126
- Issue
- 31
- Pages
- 9776-9785
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2002501218
- Cited by
- 296
- References
- 31
- FWCI
- 8.69
- Type
- journal article
- Language
- en
- Open access
- closed
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