Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18256
Title: Synthesis, electrochemistry and X-ray crystal structure of cis-[RuIIIL1(Cl)(H2O)][ClO4] 2·2H2O [L1 = N,N′-dimethyl- N,N′-bis(2-pyridylmethyl)ethylenediamine]; Electrochemical oxidation of alcohols and tetrahydrofuran by cis-[RuVL1(Cl)O]2+
Authors: Li, CK
Tang, WT
Che, CM
Wong, KY 
Wang, RJ
Mak, TCW
Issue Date: 1991
Publisher: Royal Society of Chemistry
Source: Journal of the Chemical Society. Dalton Transactions, 1991, no. 8, p. 1909-1914 How to cite?
Journal: Journal of the Chemical Society. Dalton Transactions 
Abstract: Reaction of K2[RuCl5(H2O)] with N,N′-dimethyl-N,N′-bis(2-pyridylmethyl)ethylenediamine (L1) in ethanol gave cis-[RuIIIL1Cl2]+ and then cis-[RuIIIL1(Cl)(H2O)]2+ upon reaction with AgI in water. The structure of cis-[RuIIIL1(Cl)(H2O)][ClO4] 2·2H2O has been established by X-ray crystallography: space group Pbca, a = 10.863(1), b = 21.548(2), c = 21.912(2) Å. The measured Ru-Cl and Ru-OH2 distances are 2.307(4) Å and 2.070(9) Å respectively. A cyclic voltammogram of cis- [RuIIIL1(Cl)-(H2O)]2+ in 0.1 mol dm-3 CF3CO2H shows three reversible/quasi-reversible couples at 1.29, 0.93 and 0.23 V vs. saturated calomel electrode assigned to the couples RuV-RuIV, RuIV-RuIII and RuIII-RuII. The complex cis-[RuIIIL1(Cl)(H2O)]2+ is an active catalyst for the electrochemical oxidation of alcohols and tetrahydrofuran. The second-order rate constant for the oxidation of benzyl alcohol by electrochemically generated cis-[RuVL1(Cl)O]2+ is estimated to be 8.4 × 104 dm3 mol-1 s-1.
URI: http://hdl.handle.net/10397/18256
ISSN: 0300-9246
DOI: 10.1039/DT9910001909
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