Measuring the optical chirality of molecular aggregates at liquid-liquid interfaces. Watarai, H. & Adachi, K. Analytical and bioanalytical chemistry, 395(4):1033–46, October, 2009.
Paper doi abstract bibtex Some new experimental methods for measuring the optical chirality of molecular aggregates formed at liquid-liquid interfaces have been reviewed. Chirality measurements of interfacial aggregates are highly important not only in analytical spectroscopy but also in biochemistry and surface nanochemistry. Among these methods, a centrifugal liquid membrane method was shown to be a highly versatile method for measuring the optical chirality of the liquid-liquid interface when used in combination with a commercially available circular dichroism (CD) spectropolarimeter, provided that the interfacial aggregate exhibited a large molar absorptivity. Therefore, porphyrin and phthalocyanine were used as chromophoric probes of the chirality of itself or guest molecules at the interface. A microscopic CD method was also demonstrated for the measurement of a small region of a film or a sheet sample. In addition, second-harmonic generation and Raman scattering methods were reviewed as promising methods for detecting interfacial optical molecules and measuring bond distortions of chiral molecules, respectively.
@article{Watarai2009,
title = {Measuring the optical chirality of molecular aggregates at liquid-liquid interfaces.},
volume = {395},
issn = {1618-2650},
url = {http://www.ncbi.nlm.nih.gov/pubmed/19727689},
doi = {10.1007/s00216-009-3012-5},
abstract = {Some new experimental methods for measuring the optical chirality of molecular aggregates formed at liquid-liquid interfaces have been reviewed. Chirality measurements of interfacial aggregates are highly important not only in analytical spectroscopy but also in biochemistry and surface nanochemistry. Among these methods, a centrifugal liquid membrane method was shown to be a highly versatile method for measuring the optical chirality of the liquid-liquid interface when used in combination with a commercially available circular dichroism (CD) spectropolarimeter, provided that the interfacial aggregate exhibited a large molar absorptivity. Therefore, porphyrin and phthalocyanine were used as chromophoric probes of the chirality of itself or guest molecules at the interface. A microscopic CD method was also demonstrated for the measurement of a small region of a film or a sheet sample. In addition, second-harmonic generation and Raman scattering methods were reviewed as promising methods for detecting interfacial optical molecules and measuring bond distortions of chiral molecules, respectively.},
number = {4},
journal = {Analytical and bioanalytical chemistry},
author = {Watarai, Hitoshi and Adachi, Kenta},
month = oct,
year = {2009},
pmid = {19727689},
keywords = {\#nosource, Indoles, Indoles: analysis, Optics and Photonics, Porphyrins, Porphyrins: analysis, Spectrum Analysis, Surface Properties},
pages = {1033--46},
}
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