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Synthesis and Characterization of Cp*Be-F-Al(O RF)3.
- Source :
- Zeitschrift für Anorganische und Allgemeine Chemie; Mar2015, Vol. 641 Issue 3/4, p655-659, 5p
- Publication Year :
- 2015
-
Abstract
- The reaction of Ag[Al(O R<superscript>F</superscript>)<subscript>4</subscript>] [ R<superscript>F</superscript> = C(CF<subscript>3</subscript>)<subscript>3</subscript>] with Cp*Be-Br was investigated. With the less basic CH<subscript>2</subscript>Cl<subscript>2</subscript> as solvent, redox chemistry prevailed, elemental silver and the pentamethylcyclopentenyl cation (Cp*H<subscript>2</subscript><superscript>+</superscript>) formed. However, upon changing to the more π-basic solvents fluorobenzene and o-difluorobenzene, the silver metathesis reaction went smooth and produced intermediately the [Cp*Be]<superscript>+</superscript> cation and AgBr. However, the very strong Lewis acid [Cp*Be]<superscript>+</superscript> activated one of the 36 equivalent C-F bonds of the [Al(O R<superscript>F</superscript>)<subscript>4</subscript>]<superscript>-</superscript> anion and finally formed two stable crystalline compounds containing the Cp*Be-F-Al(O R<superscript>F</superscript>)<subscript>3</subscript> molecule, which includes a [F-Al(O R<superscript>F</superscript>)<subscript>3</subscript>]<superscript>-</superscript> anion coordinated to the [Cp*Be]<superscript>+</superscript> cation. Cp*Be-F-Al(O R<superscript>F</superscript>)<subscript>3</subscript> nevertheless includes some potential to provide [Cp*Be]<superscript>+</superscript> in polar solution. Its potential neutral or ionic fission was investigated by DFT calculations. [ABSTRACT FROM AUTHOR]
- Subjects :
- BERYLLIUM compounds
LEWIS acids
DENSITY functionals
FLUOROBENZENE
ANIONS
Subjects
Details
- Language :
- English
- ISSN :
- 00442313
- Volume :
- 641
- Issue :
- 3/4
- Database :
- Complementary Index
- Journal :
- Zeitschrift für Anorganische und Allgemeine Chemie
- Publication Type :
- Academic Journal
- Accession number :
- 101590098
- Full Text :
- https://doi.org/10.1002/zaac.201400476