Application of Ion Mobility-Mass Spectrometry to the Study of Ionic Clusters

Abstract

Stable cluster sizes and compositions have been investigated for cations and anions of ionic bond clusters such as alkali halides and transition metal oxides by ion mobility-mass spectrometry (IM-MS). Usually structural information of ions can be obtained from collision cross sections determined in IM-MS. In addition, we have found that stable ion sizes or compositions were predominantly produced in a total ion mass spectrum, which was constructed from the IM-MS measurement. ese stable species were produced as a result of collision induced dissociations of the ions in a dri cell. We have con rmed this result in the sodium uoride cluster ions, in which cuboid magic number cluster ions were predominantly observed. Next the stable compositions, which were obtained for the oxide systems of the rst row transition metals, Ti, Fe, and Co, are characteristic for each of the metal oxide cluster ions.

Analytical separation techniques: toward achieving atomic precision in nanomaterials science

“…73 A recent review by Negishi et al, summarized the advancements in the HPLC in the field of thiolate protected atomically precise noble metal clusters. 74 IMS has been used for the study of several types of bare gas phase species such as ionic clusters, 75 metal clusters, metal oxide clusters, 76 etc. There have been a few attempts to study the gas phase properties of ligand protected noble metal clusters also in the last decade.…”

“…IMS has been used for the study of several types of bare gas phase species such as ionic clusters, 75 metal clusters, metal oxide clusters, 76 etc . There have been a few attempts to study the gas phase properties of ligand protected noble metal clusters also in the last decade.…”

Structural analysis of C8H6˙+ fragment ion from quinoline using ion-mobility spectrometry/mass spectrometry

“…Ion-mobility spectrometry (IMS) combined with mass spectrometry (MS) is widely employed for ion structural analysis. [18][19][20][21][22][23][24][25][26][27] Structural information can be obtained using parameters such as reduced mobility (K 0 ) or collision cross-section (CCS), which can be determined by measuring ion mobility in the drift cell. The experimental conditions for IMS are described in terms of the reduced electric field E/N, where E and N denote the electric field strength and number density of the buffer gas, respectively.…”