نتایج جستجو برای: cyclooctatetraene
تعداد نتایج: 144 فیلتر نتایج به سال:
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...
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...
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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