The fluxional behaviour of some nitrosyl bis(cyclopentadienyl) molybdenum sulphur complexes
- 1 January 1971
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society D: Chemical Communications
- No. 9,p. 420-421
- https://doi.org/10.1039/c29710000420
Abstract
The 1H n.m.r. spectra of [Mo(C5H5)2(NO)(S2CNMe2)], (I), and of [Ph4P][Mo(C5H5)2(NO){S2C2-(CN)2}], (II), have been studied over the temperature range –80 to +130°: the limiting low-temperature spectra are consistent with the structure [Mo(h5-C5H5)(h1-C5H5)(NO)–(S–S)](S–S = sulphur ligand); at intermediate temperatures, the monohapto-ring is fluxional, and at high temperatures the rings in (I) undergo site exchange, and the methyl groups become equivalent.Keywords
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