Tributyltin(IV) penta(methoxycarbonyl)cyclopentadienides [SnBu3L2]+-[C5(CO2Me)5]–. X-Ray crystal structure of the diaquatributyltin(IV) salt, [SnBu3(OH2)2][C5(CO2Me)5], and electron spin resonance spectrum of the radical C5(CO2Me)5
- 1 January 1986
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 9,p. 1873-1877
- https://doi.org/10.1039/dt9860001873
Abstract
The ionic penta(methoxycarbonyl)cyclopentadienide salts of the diligated tributyltin(IV) cation, [SnBu3L2][C5(CO2Me)5][L = H2O, OP(NMe2)3, or HCONMe2], have been isolated, and the crystal structure of the diaqua compound has been determined. The cation and anion have approximate C3v and D5h symmetry respectively, and, in the anion, the methoxycarbonyl groups are twisted out of the plane of the ring by between 29.2 and 53.2°. If 1,2,3,4,5-penta-(methoxycarbonyl)cyclopentadiene, or its dehydrodimer, (MeO2C)5C5C5(CO2Me)5, is photolysed, the e.s.r, spectrum of the persistent radical C5(CO2Me)5˙ is observed, a(H)= 0.61 G.Keywords
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