Time-resolved infrared spectroscopy in supercritical fluids

Michael W. George; Martyn Poliakoff; Xue Zhong Sun; David C. Grills

doi:10.1155/1999/81579

Time-resolved infrared spectroscopy in supercritical fluids

Michael W. George, Martyn Poliakoff, Xue Zhong Sun, David C. Grills

Research output: Journal Publication › Article › peer-review

3 Citations (Scopus)

Abstract

We have used fast Time-resolved Infrared Spectroscopy (TRIR) to probe organometallic reactions in supercritical fluids on the nanosecond time-scale. This has allowed us to identify, for the first time in solution at room temperature, organometallic noble gas complexes which are formed following irradiation of metal carbonyls in supercritical noble gas solution. We have found that these complexes are surprisingly stable and have comparable reactivity to organometallic alkane complexes. We have also studied the coordination of CO₂ to metal centres in supercritical CO₂ (scCO₂) and provide the first evidence for the formation and reactivity of η¹-O bound metal CO₂ complexes in solution at or above room temperature.

Original language	English
Pages (from-to)	133-139
Number of pages	7
Journal	Laser Chemistry
Volume	19
Issue number	1-4
DOIs	https://doi.org/10.1155/1999/81579
Publication status	Published - 1999
Externally published	Yes

Keywords

Supercritical fluids
Time-resolved IR spectroscopy
Transition metal carbonyls

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Biochemistry
Spectroscopy

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10.1155/1999/81579

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title = "Time-resolved infrared spectroscopy in supercritical fluids",

abstract = "We have used fast Time-resolved Infrared Spectroscopy (TRIR) to probe organometallic reactions in supercritical fluids on the nanosecond time-scale. This has allowed us to identify, for the first time in solution at room temperature, organometallic noble gas complexes which are formed following irradiation of metal carbonyls in supercritical noble gas solution. We have found that these complexes are surprisingly stable and have comparable reactivity to organometallic alkane complexes. We have also studied the coordination of CO2 to metal centres in supercritical CO2 (scCO2) and provide the first evidence for the formation and reactivity of η1-O bound metal CO2 complexes in solution at or above room temperature.",

keywords = "Supercritical fluids, Time-resolved IR spectroscopy, Transition metal carbonyls",

author = "George, {Michael W.} and Martyn Poliakoff and Sun, {Xue Zhong} and Grills, {David C.}",

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doi = "10.1155/1999/81579",

language = "English",

volume = "19",

pages = "133--139",

journal = "Laser Chemistry",

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T1 - Time-resolved infrared spectroscopy in supercritical fluids

AU - George, Michael W.

AU - Poliakoff, Martyn

AU - Sun, Xue Zhong

AU - Grills, David C.

PY - 1999

Y1 - 1999

N2 - We have used fast Time-resolved Infrared Spectroscopy (TRIR) to probe organometallic reactions in supercritical fluids on the nanosecond time-scale. This has allowed us to identify, for the first time in solution at room temperature, organometallic noble gas complexes which are formed following irradiation of metal carbonyls in supercritical noble gas solution. We have found that these complexes are surprisingly stable and have comparable reactivity to organometallic alkane complexes. We have also studied the coordination of CO2 to metal centres in supercritical CO2 (scCO2) and provide the first evidence for the formation and reactivity of η1-O bound metal CO2 complexes in solution at or above room temperature.

AB - We have used fast Time-resolved Infrared Spectroscopy (TRIR) to probe organometallic reactions in supercritical fluids on the nanosecond time-scale. This has allowed us to identify, for the first time in solution at room temperature, organometallic noble gas complexes which are formed following irradiation of metal carbonyls in supercritical noble gas solution. We have found that these complexes are surprisingly stable and have comparable reactivity to organometallic alkane complexes. We have also studied the coordination of CO2 to metal centres in supercritical CO2 (scCO2) and provide the first evidence for the formation and reactivity of η1-O bound metal CO2 complexes in solution at or above room temperature.

KW - Supercritical fluids

KW - Time-resolved IR spectroscopy

KW - Transition metal carbonyls

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DO - 10.1155/1999/81579

M3 - Article

AN - SCOPUS:0013432950

SN - 0278-6273

VL - 19

SP - 133

EP - 139

JO - Laser Chemistry

JF - Laser Chemistry

IS - 1-4

ER -

Time-resolved infrared spectroscopy in supercritical fluids

Abstract

Keywords

ASJC Scopus subject areas

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