[In situ FTIRS studies of reduction of [OsVI(N)(NH3)4](CF3SO3)3 in acetonitrile].
In this paper, the electrochemical cyclic voltammetry, UV/Vis and in situ FTIR spectroscopy were used to study the electrochemical reduction of [OsVI(N)(NH3)4](CF3SO3)3 on GC and Pt electrode in acetonitrile. The results demonstrated that the N-N coupling can occur between [OsVI(N)(NH3)4]3+ and the osmium(V) species generated at the electrode. It has revealed for the first time, by in situ FTIR spectroscopy, that the IR absorption of the nu (N identical to N) mode of the mu-dinitrogen osmium[III, II] and [II, II] complex yields positive-going band at around 2,019 cm-1 and negative-going band near 1,970 cm-1, respectively. The results provided new insights in understanding the mechanism of the coupling reaction [OsV identical to N][OsVI identical to N]<=>[OsII-N identical to N-OsIII].
Chen
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State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, Institute of Physical Chemistry, Xiamen University, 361005 Xiamen.
Huang
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Sun
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