Electron spin resonance of photochromic β-tetrachloro-α-ketonaphthalene

✍ Scribed by D.A. Wiersman; W.C. Nieuwpoort

• Book ID: 103010414
• Publisher: Elsevier Science
• Year: 1968
• Tongue: English
• Weight: 272 KB
• Volume: 2
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(63)80038-x

✦ Synopsis

A triplet ESR spectrum has been observed in a pwvdered sample of p Z-3.4.4-tetra-chloro-w-ketonaphthalene after UV irradiation. The spectrum could be reproduced by computer simulation using an anisotropic g-tensor (g~_v = 2.00950. g,., = 2.002 80. gas = 2.00232) and zero-field splitting parameters D' and E' of 99 and 2.3 gauss respectiv-ely. The results are discussed in terms of the earlier proposed photodissociation into a naphthosyl radical and a chlorine atom.