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Stable forms of the phenol-complex cations as revealed by trapped ion photodissociation spectroscopy

✍ Scribed by Naohiko Mikami; Shin Sato; Miyuki Ishigaki

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 508 KB
Volume: 202
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)90066-a

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✦ Synopsis

Stable forms of cations of phenol complexed with hydrogen-accepting molecules such as NH,, Hz0 or pdioxane were investigated with trapped ion photodissociation spectroscopy. Electronic spectra in the range 366-465 nm reveal that the ground-state ion of the phenol-NH3 complex consists of a phenoxy radical and an ammonium ion, whereas other ions are complexes of phenol ions with unprotonated acceptors. Dissociation processes involving the proton transfer in the ground and the excited states of the ions are dixussed.

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The electronic spectrum of the hydrogen-bonded complex cation, [C,HSOH-N(CHS),]+, has been observed by trapped ion photodissociation spectroscopy, in which the yield spectrum of the product ion H+N(CHI)s was acquired for the complex ion stored in a cylindrical ion trap cell. The spectrum in the rang