The infrared and Raman spectra of pyromellitic dianhydride |
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Authors: | Yoshiyuki Hase Kiyoyasu Kawai Oswaldo Sala |
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Institution: | Instituto de Química, Universidade de Sāo Paulo, Sāo Paulo, Brazil |
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Abstract: | The infrared and Raman spectra of solid state samples of pyromellitic dianhydride have been measured. The infrared—Raman mutual exclusion rule has been observed and the frequencies have been tentatively assigned on the basis of D2h symmetry. The values of the CO and skeletal ring stretching frequencies have been interpreted in terms of a conjugated π-system. |
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Keywords: | Permanent address: Faculty of Literature and Science Toyama University Toyama Japan |
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