Photodissociation of cyclopentadienyliron(II) arene cations: Detection and characterization of reactive intermediates by means of time-resolved laser spectroscopy

Journal Article · Wed Aug 02 04:00:00 EDT 1989 · Journal of the American Chemical Society; (USA)

DOI:https://doi.org/10.1021/ja00198a033· OSTI ID:7155434

Chrisope, D R; Park, Kyungmi; Schuster, G B ^[1]

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1. Univ. of Illinois, Urbana (USA)

Cyclopentadienyliron(II) arene cations ((CpFeArH){sup +}) exist in solution as a mixture of freely solvated ions and as ion pairs with an anionic counterion (X{sup {minus}}). Irradiation of either the free ion or the ion pair in solutions containing benzonitrile (PhCN) leads to loss of the arene ligand and formation of a tris-nitrile complex ((CpFe(PhCN){sub 3}){sup +}). Two important reactive intermediates are detected by time-resolved laser spectroscopy. One, formed from irradiation of the ion pair, is assigned as the ring-slipped {eta}{sup 4}-arene-Cp-iron compound covalently bound to its counterion. The other, formed from irradiation of freely solvated cations, is assigned as the coordinatively unsaturated ring-slipped Cp-iron-{eta}{sup 4}-arene compound. The role of these intermediates in the ligand-exchange reaction was examined.

• OSTI ID: 7155434
• Journal Information: Journal of the American Chemical Society; (USA), Journal Name: Journal of the American Chemical Society; (USA) Vol. 111:16; ISSN 0002-7863; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400500 -- Photochemistry
400600* -- Radiation Chemistry
CHARGED PARTICLES
DATA
DATA ANALYSIS
EXPERIMENTAL DATA
INFORMATION
IONS
LASER SPECTROSCOPY
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PHYSICAL RADIATION EFFECTS
POLYMERS
RADIATION EFFECTS
SPECTROSCOPY