✦ LIBER ✦
Supercritical fluid impregnation of polyethylene films, a new approach to studying equilibria in matrices; the hydrogen bonding of fluoroalcohols to (η5-C5Me5)Ir(CO)2 and the effect on CH activation
✍ Scribed by Andrew I. Cooper; Sergei G. Kazarian; Martyn Poliakoff
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 588 KB
- Volume
- 206
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
Polyethylene (PE) fdm is used as a matrix for studying temperature-dependent equilibria by IR spectroscopy; the film is impregnated with Cp%(CO)z (Cp%$-CsMes) using supercritical CO, and subsequently saturated with HORe (RF= (CFs)zCH or (CFs)sC). At 200 K, the equilibrium between Cp*Ir(CO)z and the hydrogen-bonded complex, Cp*Ir(CO)z...HOR,, is frozen out and can be disturbed photochemically, because Cp*Ir(CO)zis more efficient than Cp*Ir(CO)z...HORr for C-H activation of polyethylene.