Journal article
Reversible interconversion of permethylscandocene tellurolates and tellurides. X-ray structure of [(C5Me5)2Sc]2(.mu.-Te)
Organometallics, Vol.12(12), pp.4723-4725
12/01/1993
DOI: 10.1021/om00036a004
Abstract
Permethylscandocene tellurolates were synthesized by insertion of tellurium into the scandium–carbon bonds of the corresponding alkyl complexes. These tellurolates were found to be thermally unstable toward elimination of TeR2, forming the dimeric scandium μ-telluride Cp*2ScTeScCp*2 (2). Photochemically induced reversion of the thermal reaction was observed when a mixture of 2 and TeR2 was irradiated under a UV lamp through a Pyrex filter. X-ray analysis of 2 reveals an Sc-Te distance of 2.7528(12) Å and an ScTeSc angle of 172.07°. These data, coupled with allene-like orien-tation of the Cp* rings about the ScTeSc unit, suggest significant π-bonding between scandium and tellurium in this compound. Crystal data for 2: tetragonal space group P4̅21c, a = 15.0324(7) Å, c = 18.8884(14) Å, α, β, γ = 90°, V = 4268.3(4) Å3, Z = 4, R = 0.040, Rw = 0.034 for 2092 reflections with I > 3σ(I). © 1993, American Chemical Society. All rights reserved.
Details
- Title: Subtitle
- Reversible interconversion of permethylscandocene tellurolates and tellurides. X-ray structure of [(C5Me5)2Sc]2(.mu.-Te)
- Creators
- Warren E PiersLeonard R MacGillivrayMichael Zaworotko
- Resource Type
- Journal article
- Publication Details
- Organometallics, Vol.12(12), pp.4723-4725
- Publisher
- American Chemical Society
- DOI
- 10.1021/om00036a004
- ISSN
- 0276-7333
- eISSN
- 1520-6041
- Language
- English
- Date published
- 12/01/1993
- Academic Unit
- Chemistry; Pharmaceutical Sciences and Experimental Therapeutics
- Record Identifier
- 9984216674602771
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