Electrochemical and chemical properties of di-iodonitrosyl[tris(3,5-dimethylpyrazolyl)borato]molybdenum, [Mo{HB(Me2pz)3}(NO)I2], and related complexes
- 1 January 1985
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 6,p. 1249-1254
- https://doi.org/10.1039/dt9850001249
Abstract
Cyclic voltammetric (c.v.), coulometric, and e.s.r. spectroscopic studies have established that [Mo{HB(Me2pz)3}(NO)I2], (A)(Me2Pz = 3,5-dimethylpyrazolyl), can be reduced reversibly to a paramagnetic monoanion in tetrahydrofuran (thf) solution, and that (A)– dissociates I– giving [Mo{HB(Me2pz)3}(NO)I(solvent)], (B). The latter undergoes a reversible one-electron oxidation process. The electrochemical behaviour (c.v.) of [W{HB(Me2pz)3}(NO)(CO)2] and [Mo{HB(Me2pz)3}(NO)L2]z(L = NCMe, z=+1; L = CO, z= 0) has also been briefly examined. Reduction of complex (A) by Li(C6H4Me-p) in diethyl ether afforded the complex [Mo{HB(Me2pz)3}(NO)I2{Li(OEt2)2}], (E), whose characterisation and properties are described. It is thought that (E) contains the {Mo–(µ-I)2Li+} group.Keywords
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