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Science 16 October 1964:
Vol. 146. no. 3642, pp. 397 - 398
DOI: 10.1126/science.146.3642.397
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Articles

Photoisomerism: A Colorless Photoinduced Intermediate of o-Nitrobenzylpyridine

John A. Sousa 1 and Joseph D. Loconti 1

1 Pioneering Research Division, U.S. Army Natick Laboratories, Natick, Massachusetts

Exposure to light of o-nitrobenzylpyridines at —185°C yields a long-lived colorless intermediate which is converted to a colored isomer on warming.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)