Abstract
A dipolar ion and its nonzwitterionic counterpart were generated and characterized in the gas phase. A single charge site is found to be sufficient to lower the energy of a zwitterion well below its neutral counterpart. Charge separation in a dipolar anion enables hydrogen - deuterium exchange to take place with acids over an extraordinarily large range. These results provide a basis for studying electrostatic effects and understanding mass spectroscopic processes involving large biological molecules.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 9014-9018 |
| Number of pages | 5 |
| Journal | Journal of the American Chemical Society |
| Volume | 122 |
| Issue number | 37 |
| DOIs | |
| State | Published - Sep 20 2000 |