New insights into the photochemistry of [CpFe(CO)2]2 using picosecond through microsecond time-resolved infrared spectroscopy (TRIR)

Brookes, Christopher M.; Lomont, Justin P.; Nguyen, Son C.; Calladine, James A.; Sun, Xue-Zhong; Harris, Charles B.; George, Michael W.

doi:10.1016/j.poly.2013.12.028

Cited by 8 publications

(7 citation statements)

References 22 publications

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“…10) dimerises quickly to reform the precursor (A) while the triply-bridged species (C) reacts with CO much more slowly also to reform A (Scheme 9). Since this study, there have since been many investigations 91 of the photochemistry of [CpFe(CO) 2 ] 2 , over the time range ps to fs. Everyone agrees that on visible photolysis the initial product, generated in about 2 ps, is the radical CpFe(CO) 2 , and its subsequent reactions have been followed.…”

Section: Gas Phase Photochemistry: Key Pointsmentioning

confidence: 99%

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Photochemistry of transition metal carbonyls

et al. 2022

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Section: Gas Phase Photochemistry: Key Pointsmentioning

confidence: 99%

“…Since this study, there have since been many investigations 91 of the photochemistry of [CpFe(CO) 2 ] 2 , over the time range ps to fs. Everyone agrees that on visible photolysis the initial product, generated in about 2 ps, is the radical CpFe(CO) 2 , and its subsequent reactions have been followed.…”

Section: Photochemistry In Solutionmentioning

confidence: 99%

Photochemistry of transition metal carbonyls

et al. 2022

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“…87,88 This represents a rare example of di-carbonyl loss occurring following a single photon absorption event in the solution phase. [89][90][91][92] This species apparently escaped detection in the TRIR experiments, as it is believed to contain only terminal CO ligands and thus may not have been readily identifiable in the presence of other terminal COstretching bands.…”

Section: Ru3(co)12mentioning

confidence: 99%

Primary photochemical dynamics of metal carbonyl dimers and clusters in solution: Insights into the results of metal–metal bond cleavage from ultrafast spectroscopic studies

Lomont

Harris

2015

Inorganica Chimica Acta

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Supporting Information PlaceholderABSTRACT: Metal carbonyl dimers and clusters constitute a diverse class of organometallic reagents and catalysts. The photochemistry of these complexes is a topic of significant and long-standing interest, as preparative-scale photolyses constitute many of the most synthetically powerful reactions in organometallic chemistry. The metal-metal bonding present in dimers and clusters is varied and significantly influences their overall reactivity. In this review we discuss the primary photochemical dynamics of transition metal carbonyl metal dimers and clusters, with a focus on the changes in metal-metal bonding that occur upon visible and/or ultraviolet photochemical excitation. The bulk of the results discussed here were obtained using ultrafast time-resolved infrared spectroscopy, a technique with high structural sensitivity afforded by the carbonyl reporter ligands of the complexes studied. Picosecond time resolution allows detailed monitoring of the photochemical reaction dynamics, including observation of initially excited complexes and short-lived transient metal-metal bond cleavage intermediates, as well as formation of the longer-lived, yet reactive, intermediates responsible for reactivity occurring on diffusion-limited time scales and beyond.

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“…A further example of the use of TRVS in the field of organometallic compounds by one of the pioneers of PIRATE and ULTRA is also cited here [94].…”

Section: Time-resolved Vibrational Spectroscopymentioning

confidence: 99%

A lifetime in photochemistry; some ultrafast measurements on singlet states

Phillips¹

2016

Proc. R. Soc. A.

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We describe here the development of time-correlated single-photon counting techniques from the early use of spark discharge lamps as light sources through to the use of femtosecond mode-locked lasers through the personal work of the author. We used laser-excited fluorescence in studies on energy migration and rotational relaxation in synthetic polymer solutions, in biological probe molecules and in supersonic jet expansions. Time-correlated single-photon counting was the first method used in early fluorescence lifetime imaging microscopy (FLIM), and we outline the development of this powerful technique, with a comparison of techniques including wide-field microscopy. We employed these modern forms of FLIM to study single biological cells, and applied FLIM also to gain an understanding the distribution in tissue, and fates of photosensitizer molecules used in photodynamic therapy. We also describe the uses and instrumental design of laser systems for the study of ultrafast time-resolved vibrational spectroscopy.

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New insights into the photochemistry of [CpFe(CO)2]2 using picosecond through microsecond time-resolved infrared spectroscopy (TRIR)

Cited by 8 publications

References 22 publications

Photochemistry of transition metal carbonyls

Photochemistry of transition metal carbonyls

Primary photochemical dynamics of metal carbonyl dimers and clusters in solution: Insights into the results of metal–metal bond cleavage from ultrafast spectroscopic studies

A lifetime in photochemistry; some ultrafast measurements on singlet states

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