tert -Butylphosphaethine
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| Surname | tert -Butylphosphaethine | |||||||||
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| Molecular formula | C 5 H 9 P | |||||||||
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| Molar mass | 100.10 g mol −1 | |||||||||
| Physical state |
liquid |
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . | ||||||||||
tert-Butylphosphaethine is a phosphaalkyne with the composition P≡C – C (CH 3 ) 3 .
It is the first phosphaalkyne that can be isolated and used at room temperature. tert -Butylphosphaethine is a colorless, air-sensitive liquid that can be distilled at 61 ° C. It was obtained by the base-catalyzed β- elimination of hexamethyldisiloxane from the phosphaalkene [(Me 3 SiO) (But) C = PSiMe 3 ]. The synthesis of this compound is kinetically stabilized represented a milestone in the study of reactivity of carbon - phosphorus - multiple bonds . Is based on data from the crystal structure analysis was for P≡C bond is a bond length of 154.8 pm are determined. Quantum mechanical calculations suggest that the properties are more comparable to alkynes than to nitriles , which explains the extraordinary interest in this compound.
Individual evidence
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
literature
- G. Becker, G. Gresser, W. Uhl: 2.2 dimethylpropylidynephosphine, a stable compound with a phosphorus atom coordination number 1. In: Journal of Nature Research B . 36, 1981, pp. 16-19 ( PDF , free full text).