Electron-transfer reactions in nitrogen fixation. Part 2. The electrosynthesis of ammonia: identification and estimation of products
- 1 January 1986
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 7,p. 1453-1457
- https://doi.org/10.1039/dt9860001453
Abstract
Protonation of trans-[W(N2)2(Ph2PCH2CH2PPh2)2] with toluene-p-sulphonic acid gives the hydrazido cation trans-[W(NNH2)(p-MeC6H4SO3)(Ph2PCH2CH2PPh2)2]+. Reduction of this cation at a Hg-pool electrode in a tetrahydrofuran electrolyte under N2(1 atm) affords free ammonia with regeneration of the parent dinitrogen complex in excellent yield. Protonation of the regenerated product allows the system to be cycled and this can be performed in one vessel, the cathode compartment of the electrolysis cell.Keywords
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