Photochemistry of (eta/sup 5/-indenyl)/sub 2/Fe/sub 2/(CO)/sub 4/ in the presence of 2e/sup -/ donor ligands: reversible formation of the radicals (indenyl)Fe(CO)/sub 2/L

Journal Article · Wed Sep 16 04:00:00 EDT 1987 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00253a054· OSTI ID:6014233

Wuu, Y M; Zou, C; Wrighton, M S

The authors report photochemical reaction and the reverse thermal process represented by eq 1 for L = CO, PPh/sub 3/, and PPh/sub 2/H. The (eta/sup 5/-indenyl)/sub 2/Fe/sub 2/(CO)/sub 4/ + 2L hv(lambda > 500 nm) in equilibrium alkane, 298 K 2(indenyl)Fe(CO)/sub 2/L (1) indenyl ligand can bind in either an eta/sup 5/ or eta/sup 3/ fashion, and the facile, reversible ring slippage, eta/sup 5/ in equilibrium eta/sup 3/ binding, has been invoked to account for the greater substitution lability of eta/sup 4/-indenyl complexes compared to eta/sup 5/-C/sub 5/H/sub 5/ complexes. Ring slippage in a variety of eta/sup 5/-C/sub 5/H/sub 5/ complexes and their derivatives has been invoked to account for a number of interesting chemical transformations. Recent work from this laboratory implicating reactions of CO and PPh/sub 3/ with photogenerated (C/sub 5/R/sub 5/)Fe(CO)/sub 2/ (R = H, Me) stimulated the authors to investigate the photochemistry of (eta/sup 5/-indenyl)/sub 2/Fe/sub 2/(CO)/sub 4/ with the hope of stabilizing the product from thermal reaction of CO and PPh/sub 3/ with photogenerated (indenyl)Fe(CO)/sub 2/ radicals.

• Research Organization: Massachusetts Institute of Technology, Cambridge
• OSTI ID: 6014233
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 109:19; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
AROMATICS
CARBONYLS
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
DATA
ELECTRON SPIN RESONANCE
EXPERIMENTAL DATA
INFORMATION
INFRARED SPECTRA
IRON COMPLEXES
MAGNETIC RESONANCE
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOSPHINES
PHOSPHORUS COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
RADICALS
RESONANCE
SPECTRA
TRANSITION ELEMENT COMPLEXES