UV photochemistry of [CpFe(CO)2]2 (Cp = η5-C5H5) studied by picosecond time-resolved infrared spectroscopy

Michael W. George; Thomas P. Dougherty; Edwin J. Heilweil

doi:10.1021/jp952027o

UV photochemistry of [CpFe(CO)₂]₂ (Cp = η⁵-C₅H₅) studied by picosecond time-resolved infrared spectroscopy

Michael W. George, Thomas P. Dougherty, Edwin J. Heilweil

Research output: Journal Publication › Article › peer-review

47 Citations (Scopus)

Abstract

Picosecond time-resolved infrared spectroscopy has been used to investigate the primary UV photochemistry of [CpFe(CO)₂]₂ (Cp = η⁵-C₅H₅) in alkane solution at room temperature. We show that the triply bridged intermediate, CpFe(μ-CO)₃FeCp, is formed within 10 ps. We observe a new intermediate with a vν(CO) band at 1908 cm^-1 that reacts at a diffusion-controlled rate (k = (1.3 ± 1.0) (2σ) × 10¹⁰ s^-1) with THF to form Cp(CO)Fe(μ-CO)₂Fe(THF)Cp.

Original language	English
Pages (from-to)	201-206
Number of pages	6
Journal	Journal of Physical Chemistry
Volume	100
Issue number	1
DOIs	https://doi.org/10.1021/jp952027o
Publication status	Published - 4 Jan 1996
Externally published	Yes

ASJC Scopus subject areas

General Engineering
Physical and Theoretical Chemistry

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abstract = "Picosecond time-resolved infrared spectroscopy has been used to investigate the primary UV photochemistry of [CpFe(CO)2]2 (Cp = η5-C5H5) in alkane solution at room temperature. We show that the triply bridged intermediate, CpFe(μ-CO)3FeCp, is formed within 10 ps. We observe a new intermediate with a vν(CO) band at 1908 cm-1 that reacts at a diffusion-controlled rate (k = (1.3 ± 1.0) (2σ) × 1010 s-1) with THF to form Cp(CO)Fe(μ-CO)2Fe(THF)Cp.",

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year = "1996",

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AU - Dougherty, Thomas P.

AU - Heilweil, Edwin J.

PY - 1996/1/4

Y1 - 1996/1/4

N2 - Picosecond time-resolved infrared spectroscopy has been used to investigate the primary UV photochemistry of [CpFe(CO)2]2 (Cp = η5-C5H5) in alkane solution at room temperature. We show that the triply bridged intermediate, CpFe(μ-CO)3FeCp, is formed within 10 ps. We observe a new intermediate with a vν(CO) band at 1908 cm-1 that reacts at a diffusion-controlled rate (k = (1.3 ± 1.0) (2σ) × 1010 s-1) with THF to form Cp(CO)Fe(μ-CO)2Fe(THF)Cp.

AB - Picosecond time-resolved infrared spectroscopy has been used to investigate the primary UV photochemistry of [CpFe(CO)2]2 (Cp = η5-C5H5) in alkane solution at room temperature. We show that the triply bridged intermediate, CpFe(μ-CO)3FeCp, is formed within 10 ps. We observe a new intermediate with a vν(CO) band at 1908 cm-1 that reacts at a diffusion-controlled rate (k = (1.3 ± 1.0) (2σ) × 1010 s-1) with THF to form Cp(CO)Fe(μ-CO)2Fe(THF)Cp.

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IS - 1

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UV photochemistry of [CpFe(CO)₂]₂ (Cp = η⁵-C₅H₅) studied by picosecond time-resolved infrared spectroscopy

Abstract

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