The fragmentation properties of the product ions [M+3]+, [M+3]+ and [M+3]+ formed by ion-molecule reaction of four cyclopropane derivatives with the ion system of CD3OD were investigated by using collision-induced dis...The fragmentation properties of the product ions [M+3]+, [M+3]+ and [M+3]+ formed by ion-molecule reaction of four cyclopropane derivatives with the ion system of CD3OD were investigated by using collision-induced dissociation technique. The experiment results indicate that the product ions are produced via the H/D exchange reaction between reactants and reactive reagent ions of CD3OD. There are two exchangeable hydrogen atoms on the ring of compounds 1 and 2, and only one for compounds 3 and 4.展开更多
We have investigated the H/D exchange reaction between heavy water and an ionic liquid, 1-butyl-3-methyl-imidazolium tetrafluoroborate ([bmim][BF4]), throughout the whole concentration region as a function of D2O mol%...We have investigated the H/D exchange reaction between heavy water and an ionic liquid, 1-butyl-3-methyl-imidazolium tetrafluoroborate ([bmim][BF4]), throughout the whole concentration region as a function of D2O mol% at room temperature. We expected that the extent of the H/D reaction would increase linearly with increasing content of D2O, but the results show an extended N-shaped behavior having a small maximum at around 40 mol% and the reaction becomes very slow at a specific concentration around 80 mol%. We found that this non-linear concentration dependence correlates with the pD dependence of the solutions.展开更多
文摘The fragmentation properties of the product ions [M+3]+, [M+3]+ and [M+3]+ formed by ion-molecule reaction of four cyclopropane derivatives with the ion system of CD3OD were investigated by using collision-induced dissociation technique. The experiment results indicate that the product ions are produced via the H/D exchange reaction between reactants and reactive reagent ions of CD3OD. There are two exchangeable hydrogen atoms on the ring of compounds 1 and 2, and only one for compounds 3 and 4.
文摘We have investigated the H/D exchange reaction between heavy water and an ionic liquid, 1-butyl-3-methyl-imidazolium tetrafluoroborate ([bmim][BF4]), throughout the whole concentration region as a function of D2O mol% at room temperature. We expected that the extent of the H/D reaction would increase linearly with increasing content of D2O, but the results show an extended N-shaped behavior having a small maximum at around 40 mol% and the reaction becomes very slow at a specific concentration around 80 mol%. We found that this non-linear concentration dependence correlates with the pD dependence of the solutions.
