Time-resolved infrared spectroscopy in supercritical fluids

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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)133-139
Number of pages7
JournalLaser Chemistry
Volume19
Issue number1-4
Publication statusPublished - 1999

Fingerprint

Supercritical fluids
supercritical fluids
Organometallics
Noble Gases
Infrared spectroscopy
Spectrum Analysis
infrared spectroscopy
Inert gases
rare gases
reactivity
Metals
metals
Temperature
Alkanes
Coordination Complexes
room temperature
Metal complexes
Paraffins
alkanes
Irradiation

Keywords

  • Supercritical fluids
  • Time-resolved IR spectroscopy
  • Transition metal carbonyls

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electronic, Optical and Magnetic Materials

Cite this

George, M. W., Poliakoff, M., Sun, X. Z., & Grills, D. (1999). Time-resolved infrared spectroscopy in supercritical fluids. Laser Chemistry, 19(1-4), 133-139.

Time-resolved infrared spectroscopy in supercritical fluids. / George, Michael W.; Poliakoff, Martyn; Sun, Xue Zhong; Grills, David.

In: Laser Chemistry, Vol. 19, No. 1-4, 1999, p. 133-139.

Research output: Contribution to journalArticle

George, MW, Poliakoff, M, Sun, XZ & Grills, D 1999, 'Time-resolved infrared spectroscopy in supercritical fluids', Laser Chemistry, vol. 19, no. 1-4, pp. 133-139.
George MW, Poliakoff M, Sun XZ, Grills D. Time-resolved infrared spectroscopy in supercritical fluids. Laser Chemistry. 1999;19(1-4):133-139.
George, Michael W. ; Poliakoff, Martyn ; Sun, Xue Zhong ; Grills, David. / Time-resolved infrared spectroscopy in supercritical fluids. In: Laser Chemistry. 1999 ; Vol. 19, No. 1-4. pp. 133-139.
@article{9ab16aff33964af18921a7f800efa4cf,
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 David Grills",
year = "1999",
language = "English",
volume = "19",
pages = "133--139",
journal = "Laser Chemistry",
issn = "0278-6273",
publisher = "Hindawi Publishing Corporation",
number = "1-4",

}

TY - JOUR

T1 - Time-resolved infrared spectroscopy in supercritical fluids

AU - George, Michael W.

AU - Poliakoff, Martyn

AU - Sun, Xue Zhong

AU - Grills, David

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

UR - http://www.scopus.com/inward/record.url?scp=0013432950&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0013432950&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0013432950

VL - 19

SP - 133

EP - 139

JO - Laser Chemistry

JF - Laser Chemistry

SN - 0278-6273

IS - 1-4

ER -