نتایج جستجو برای: cyclooctatetraene

تعداد نتایج: 144  

Journal: :Physical chemistry chemical physics : PCCP 2012
Patrick Hemberger Andras Bodi Christof Schon Michael Steinbauer Kathrin H Fischer Conrad Kaiser Ingo Fischer

The vacuum ultraviolet (VUV) photoionization and dissociative photoionization of three hydroxy-substituted [2.2]paracyclophane derivatives were studied yielding adiabatic ionization energies and dissociative photoionization energies (appearance energies). The simplest dissociation pathway is the breaking of both CH(2)-CH(2) bridge units and fragmenting the molecular ion in half to yield xylylen...

1997
Paul G. Wenthold

The photoelectron spectrum of the dehydrocyclooctatetraene negative ion, C8H6, is reported. The spectrum strongly resembles that previously reported for the cyclooctatetraene anion, indicating that the structure of C8H6 is very similar to that of C8H8. Two electronic states of dehydrocyclooctatetraene are observed in the photoelectron spectrum. The lowest energy feature is assigned to singlet 1...

2005
Rolf Huisgen

Kinetics of parallel reactions contribute to the elucidation of poly-step mechanisms. Competing pathways in the reaction of benzenediazonium ion with azide anion helped to establish the occurrence of phenylpentazole. Steady state kinetics clarified the competition between the interception of an intermediate and its return to the starting material. The DielsAlder reactions of cyclooctatetraene a...

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