Distinguishing conventional and distonic radical cations by using dimethyl diselenide
نویسندگان
چکیده
منابع مشابه
Hydroxyl radical formation in the gas phase oxidation of distonic 2-methylphenyl radical cations.
The reactions of distonic 4-(N,N,N-trimethylammonium)-2-methylphenyl and 5-(N,N,N-trimethylammonium)-2-methylphenyl radical cations (m/z 149) with O2 are studied in the gas phase using ion-trap mass spectrometry. Photodissociation (PD) of halogenated precursors gives rise to the target distonic charge-tagged methylphenyl radical whereas collision-induced dissociation (CID) is found to produce u...
متن کاملRadical Cations?
The electron impact-induced fragmentation of 2,2-dimethyland 2-ethyI-l,findandione, 1 and 2, and their isomers, 3-isopropylideneand 3-propylidenephthalide, 3 and 4, respectively, was studied in detail by mass-analysed ion kinetic energy (MIKE) and collision-induced dissociation (CID-MIKE) spectrometry, including 'H and I3Clabelled analogues of 1 and 2. In all regimes of internal energy, the mol...
متن کاملHomoconjugation in Radical Cations
Recent studies of nuclear spin polarization effects in cyclopropane derivatives have provided considerable information on the structure as well as the spin and charge density distributions in this class of radical ca,tions. In the present work we report an extension of the frontier MO/perturbation MO theory of homoconjugation to include such species in an attempt to rationalize further the expe...
متن کاملDimer radical cations of indole and indole-3-carbinol: localized and delocalized radical cations of diindolylmethane.
Extending our previous study on the title species (J. Phys. Chem. A2010, 114, 6787), we investigated the dimer cations that are formed on oxidation of the glucobrassin derivatives indole-3-carbinol (I3C) and diindolylmethane (DIM) and of parent indole (I). Radiolysis in ionic liquid and Ar matrices shows that, at sufficiently high concentrations and/or on annealing the solid glasses, intense in...
متن کاملInvestigation of the gas phase reactivity of the 1-adamantyl radical using a distonic radical anion approach.
The gas phase reactions of the bridgehead 3-carboxylato-1-adamantyl radical anion were observed with a series of neutral reagents using a modified electrospray ionisation linear ion trap mass spectrometer. This distonic radical anion was observed to undergo processes suggestive of radical reactivity including radical-radical combination reactions, substitution reactions and addition to carbon-c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the American Society for Mass Spectrometry
سال: 1996
ISSN: 1044-0305
DOI: 10.1016/s1044-0305(96)00107-9