Gas phase abduct of endohedral rare-earth fullerenes Nd@C82 with the ion system of benzene- [Nd @ C82-C6H6] + was observed for the first time by ion-molecular reaction under chemical ionization condition. The possible...Gas phase abduct of endohedral rare-earth fullerenes Nd@C82 with the ion system of benzene- [Nd @ C82-C6H6] + was observed for the first time by ion-molecular reaction under chemical ionization condition. The possible reaction passageway and molecular structures of this gas phase adduct were discussed and a parallel "reversed umbrella’ π-π interaction complex of the [C6H6]+ ion reacting with the neutral rare-earth fullerenes Nd@C82 was considered to be much reasonable. The experimental result indicated that endohedral rare-earth fullerenes has relatively active relativity and aromatic properties similar towards benzene molecular ion in gas phase.展开更多
The effective preparation of rare-earth metallofullerenes is described. Graphiterod blended with rare earth oxide was used as starting material. The method consists of dou-ble are discharge, extraction with toluene in...The effective preparation of rare-earth metallofullerenes is described. Graphiterod blended with rare earth oxide was used as starting material. The method consists of dou-ble are discharge, extraction with toluene in Soxhlet extractor and extraction with pyridine athigh temperature and pressure. The laser desorption time-of-flight mass spectrometry (LD-TOF MS) results showed that the more important factors influencing the formation of rareearth metallofullerenes appeared the conditions of their preparation and extraction and va-lence states of rare earth elements themselves.展开更多
文摘Gas phase abduct of endohedral rare-earth fullerenes Nd@C82 with the ion system of benzene- [Nd @ C82-C6H6] + was observed for the first time by ion-molecular reaction under chemical ionization condition. The possible reaction passageway and molecular structures of this gas phase adduct were discussed and a parallel "reversed umbrella’ π-π interaction complex of the [C6H6]+ ion reacting with the neutral rare-earth fullerenes Nd@C82 was considered to be much reasonable. The experimental result indicated that endohedral rare-earth fullerenes has relatively active relativity and aromatic properties similar towards benzene molecular ion in gas phase.
文摘The effective preparation of rare-earth metallofullerenes is described. Graphiterod blended with rare earth oxide was used as starting material. The method consists of dou-ble are discharge, extraction with toluene in Soxhlet extractor and extraction with pyridine athigh temperature and pressure. The laser desorption time-of-flight mass spectrometry (LD-TOF MS) results showed that the more important factors influencing the formation of rareearth metallofullerenes appeared the conditions of their preparation and extraction and va-lence states of rare earth elements themselves.
