Isolation and characterization of a new metallofullerene Nd@C82

✍ Scribed by Junqi Ding; Nian Lin; Lu-Tao Weng; Nelson Cue; Shihe Yang

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 383 KB
• Volume: 261
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(96)00879-2

✦ Synopsis

Nd@C82 has been isolated with a purity of ~ 99.9% by an efficient solvent extraction procedure, followed by HPLC separation. UV-VIS-NIR absorption spectra of the metallofullerenes were measured in a wavelength range from 300 to 2100 nm. The spectral features are remarkably similar to those of La@Cs2 and Ce@C82, a finding which suggests a similar magnitude of charge transfer from the metal atoms to the carbon cage for these species M@Cs2 (M = rare earth element). A study using X-ray photoelectron spectroscopy (XPS) suggests that the electronic structure of Nd@C82 can be approximately represented by Nd3÷@C32 -.