• No results found

ion-molecule reactions

Experimental study of ion-molecule reactions of aromatic hydrocarbons

Experimental study of ion-molecule reactions of aromatic hydrocarbons

... guided ion beam mass spectrometric techniques and coupled to theoretical interpretations by quantum chemistry, on ionic mech- anisms for the molecular growth of aromatic hydrocarbons with a particular relevance ...

102

Structural applications of gas phase ion molecule reactions

Structural applications of gas phase ion molecule reactions

... negative ion-molecule reactions occurs as vibrational energy in the newly formed bond in the neutral species then the newly formed ion is usually very stable with respect to dissociation and ...

200

The development of a quinquaquadrupole mass spectrometer   the study of ion molecule reactions in the gas phase using multiple quadrupole instruments

The development of a quinquaquadrupole mass spectrometer the study of ion molecule reactions in the gas phase using multiple quadrupole instruments

... were ion molecule reactions could be followed through all five stages of the ...primary ion source gas was required to produce a primary ion signal capable of being transmitted along ...

215

Crossed beam studies of ion molecule reactions

Crossed beam studies of ion molecule reactions

... The observation that the (NCO)· ground state forward.. Product translational energy distribution, ptT').. peak is retained whereas the forward peak for CO~ lies in[r] ...

188

Experimental and theoretical studies of ion molecule reactions

Experimental and theoretical studies of ion molecule reactions

... (Rice, Ramsperger, Kassel, Marcus) theory. It was later recognised that the collisional· activation/deactivation process is not a one-step process, but rather involve[r] ...

210

Selected ion flow tube studies of some gaseous ion molecule reactions

Selected ion flow tube studies of some gaseous ion molecule reactions

... this thesis are to be published. Freeman and M.J.. The Selected Ion Flow Tube technique requires a mass spectrometer to select the mass of the ion studied in a [r] ...

290

Development of a crossed beam instrument for studying ion molecule reactions

Development of a crossed beam instrument for studying ion molecule reactions

... ary Ion beam a lso gave low stability, m oderate reproducibility, large angular divergence ...small ion currents and broad energy spreads ...the ion optics were operating as ...the ion beam ...

272

A selected ion flow tube study of some gas phase ion molecule reactions of potential relevance to the chemistry of dense interstellar clouds

A selected ion flow tube study of some gas phase ion molecule reactions of potential relevance to the chemistry of dense interstellar clouds

... Radiative association of ions with molecules, first suggested by Williams,53 is held to be of importance in collisions involving polyatomic reactants.31 Under cloud[r] ...

394

Ion-Molecule Reaction of Ti+ Ion with Trifluoroacetone in the Gas Phase

Ion-Molecule Reaction of Ti+ Ion with Trifluoroacetone in the Gas Phase

... the ion-molecule reactions due to the distinct geometry of the association ...The molecule structures of intermediate and transition states involved in these pathways are fully optimized and ...

9

A New Tool For Col Ion-Molecule Chemistry

A New Tool For Col Ion-Molecule Chemistry

... HD reactions as well,[27] where the CaD + channel was found to have ...of ionmolecule reactions at low temperature will benefit from studies with less complex species that are amenable to ...

139

Kinetics and equilibria of ion molecule association reactions : studied using temperature variable high pressure ion sources

Kinetics and equilibria of ion molecule association reactions : studied using temperature variable high pressure ion sources

... and Moruzzi (1978) on negative ion studies32. The main different in their apparatus is that the drift electric field is directed along a diameter of the flow tube that is[r] ...

201

Cold ion-neutral reactions

Cold ion-neutral reactions

... assisted ion-neutral reactive colli- ...an ion-neutral hybrid trap and to investigate reactive collisions of various species down to unprece- dentedly low collision ...low ion-neutral collision ...

182

Theoretical and experimental studies of ion transport and ion molecule interactions

Theoretical and experimental studies of ion transport and ion molecule interactions

... Each mobility measurement, (EIN,Ko), is inverted to give a single point on the interaction potential, (r,V(r)). The basic assumption is that at any given electric field strength the [r] ...

179

I energetics of anion-molecule reactions involving

I energetics of anion-molecule reactions involving

... Abstract: As part of a program directed toward an understanding of the intrinsic nature of anion-molecule re- actions involving organic constituents, rate constants have been [r] ...

5

Microscopic approach to heavy-ion reactions

Microscopic approach to heavy-ion reactions

... affect the probability of survival of the CN, and hence the probability of fast quasifission in heavy-ion reactions. Sourcing where in the system emitted particles emerge from would also be interesting. For ...

172

Heavy ion induced fission reactions

Heavy ion induced fission reactions

... An energetic charged particle interacts with the material through which it passes, producing ionization, excitation and dissociation of the molecules along its path. Gas ionization detectors rely for their operation on ...

193

Studies of ion transport properties and ion molecule interactions in a drift tube mass spectrometer

Studies of ion transport properties and ion molecule interactions in a drift tube mass spectrometer

... Effective temperatures have been calculated using drift velocities derived from these "corrected" mobilities and momentum transfer collision integrals derived [r] ...

143

Theoretical studies of reactions involving ion-neutral complexes

Theoretical studies of reactions involving ion-neutral complexes

... Gas-Phase Ion Chemistry 37 ...reactant ion is ...the ion signal results from the reaction of the monitor gas with the most reactive ...two reactions and the relative abundances of the isomers ...

222

Systematics of the fusion cross-section in heavy ion reactions

Systematics of the fusion cross-section in heavy ion reactions

... Normalized by the reaction cross-section and plotted as a function of the available energy per nucleon corrected for the Coulomb barrier, fusion cross- section show a rather universal be[r] ...

7

Show all 10000 documents...

Related subjects