Electron-transfer chain catalysis in phosphine replacement reaction: Determination of relative donor capability of arylpyridylphosphines
Resource
Inorganica Chimica Acta 360 (7): 2464-2470
Journal
Inorganica Chimica Acta
Pages
2464-2470
Date Issued
2007
Date
2007
Author(s)
Adeyemi, Olalere G.
Liu, Ling-Kang
Abstract
The slight differences in the donor capabilities of PPhnPy3-n (n = 0-3) could be measured directly in the equilibrium of phosphine replacement reaction on (η5-C5H5)Fe(CO)2-phosphi ne complexes, taking advantage of the radical pathway to establish equilibrium rapidly. The simultaneous determination of equilibrium constants is done in a single experiment. The donor capability increases in the order PPh3 < PPh2Py < PPhPy2 < PPy3 with quantified (η5 - C5 H5) Fe (CO)2+-affinity scales at 1, 4.90, 11.0, and 20.3, respectively. © 2006 Elsevier B.V. All rights reserved.
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journal article
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