Infrared Spectroscopy / Ezine
IR and NMR Properties of ionic liquids: Do they tell us the same thing?
Date: Nov 1, 2007
Author:
A combination of theoretical and experimental methods were used to derive the IR and NMR spectroscopic properties of imidazolium-based ionic liquids. The data provide detailed information about structural complexes and may serve as good indicators of ion-pair formation.
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Play it again
Date: Oct 1, 2007
Author: David Bradley
With the advent of the mp3 file, we have been told that the good-old fashioned CD player is now redundant. Not, so, believe researchers in Spain, who are hoping to play an entirely different tune by developing diagnostic and analytical systems to fit on a CD-ROM or DVD that can be read by conventional hardware adapted for the purpose.
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Ultrafast 2D-IR vibrational echo spectroscopy: a probe of molecular dynamics
Date: Oct 1, 2007
Author:
Experimental details of 2D-IR vibrational echo spectroscopy are described, including the experimental setup, pulse sequence, heterodyne detection, and extraction of the mainly absorptive part of the 2DIR spectrum.
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Raman and infrared studies of synthetic Maya pigments
Date: Sep 3, 2007
Author:
Synthetic Maya pigments, which can be prepared at higher concentrations than those used by the Mayas, have been analysed by FT-Raman and FTIR spectroscopy to study the effects of concentration and heating.
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Baby light
Date: Sep 1, 2007
Author: David Bradley
Near-infrared light could allow researchers to see activity within the infant brain even while the tot wriggles and giggles.
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Amphetamine effects on brain proteins and oxidative stress by FTIR microspectroscopy
Date: Aug 6, 2007
Author:
The biochemical alterations of lipids and proteins in brain sections from amphetamine-treated rodents were examined using infrared microspectroscopy, immunohistochemistry, and immunoblotting.
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Making proteins without amino acids
Date: Aug 1, 2007
Author: David Bradley
A new approach to synthesising polypeptide chains that works more like polythene manufacture than a biochemical reaction could lead to new materials, catalysts, and pharmaceuticals.
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IR spectroscopy of organometallic ions in the gas phase
Date: Jul 2, 2007
Author:
This review focusses on gas phase IRMPD spectroscopic investigations for probing the structure and the reactivity of transition metal complexes. The performance of infrared spectroscopy for characterizing the coordination mode of polydentate ligands and the spin state of the metal will be illustrated.
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Micro lasers... so NIR
Date: Jul 1, 2007
Author: David Bradley
Japanese researchers have built a highly efficient room-temperature NIR laser that produces a stable, continuous stream of NIR laser light. The device overall has a width of just a few micrometres and might find applications in portable NIR spectroscopy and other areas, such as optoelectronics.
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Characterization of molecular orientation in PET bottles by external reflection IR spectroscopy
Date: Jun 4, 2007
Author:
The utility of a front-surface reflection IR technique was demonstrated for the characterization and quantification of the molecular orientation at the outer surface of injection-stretch-blow-molded bottles made from PET.
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