Infrared Spectra of Thiourea and its Inclusion Compounds. II. Spectra of Guest Molecules.

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概要

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• The infrared dichroismic behaviors of molecules enclosed in a thiourea channel were investigated with an infrared microscope by using oriented single crystals of adducts. The absorptions of guest molecules in the region between 3000 and 1650 cm^<-1>, 1590 and 1500 cm^<-1>, and 1050 and 730 cm^<-1> were found to be measurable with this technique. The vibrational species of some of these absorptions were determined, especially in case of trans- and cis-decalins. Molecules having carboxylic group were revealed to form dimers as in solutions when they were included in a thiourea channel. This technique would be used to study dichroism of some kinds of organic molecules under certain limitation. Environmental effect exerted by thiourea cage has been also estimated. The results showed that it is comparable with that of solvents of dielectric constant 2.5〜5.5.

• 公益社団法人日本薬学会の論文
• 1962-12-25

著者

• 西川 正夫

  Chemical Research Laboratories, Central Research Division, Takeda Chemical Industries, Ltd.

• 西川 正夫

  Central Research Division Takeda Chemical Industries Ltd.

• 西川 正夫

  Research Laboratories Takeda Chemical Industries Ltd.

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