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The Peculiar Behavior of Electronically Excited Cyclobutanones: A Photochemical Example of the Consequence of Through-Bond Interaction

✍ Scribed by Doz. Dr. Wolf-Dieter Stohrer; Dipl.-Chem. Gerhard Wiech; Prof. Dr. Gerhard Quinkert

Publisher: John Wiley and Sons
Year: 1974
Tongue: English
Weight: 230 KB
Volume: 13
Category: Article
ISSN: 0044-8249
DOI: 10.1002/anie.197401991

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✦ Synopsis

186"C, which slowly transforms into a red secondary thermo transient (A,,, = 437 nm in EPA). The colorless Fluorolube glass permits observation of a broad ESR signal and the red solution shows a well structured signal. Further studies should reveal whether the thermo transient is the 1,4-alkyl/acyl diradical formed from the oxacarbene.

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✍ Edgar Heilbronner; John P. Maier 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 German ⚖ 467 KB 👁 1 views

## Abstract The PE. spectra of [2, 2]paracyclophane (**1**), 4‐amino[2, 2]paracyclophane (**2**) and 1, 1, 2, 2, 9, 9, 10, 10‐octafluoro[2, 2]paracyclophane (**3**) are presented. The bands corresponding to ejection of the photoelectron from the five highest occupied π‐orbitals have been assigned.