Inorganic Electrides Formed by Alkali Metal Addition to Pure Silica Zeolites.

Abstract

2003 Zeolites Zeolites V 1350 Inorganic Electrides Formed by Alkali Metal Addition to Pure Silica Zeolites. -Up to four Cs or Rb atoms per 32 Si atoms can be incorporated into the channels of the zeolites ITQ-4 and beta with effective oxidation states of zero. The metals ionize to form cations and delocalized electrons, as confirmed by diffusive reflectance, 133 Cs, and 29Si MAS NMR spectroscopy. K and Na can also be absorbed at higher temperature, but their final spectra show no evidence of delocalized electrons. -(WERNETTE, D. P.; ICHIMURA, A. S.; URBIN, S. A.; DYE*, J. L.; Chem. Mater. 15 (2003) 7, 1441-1448; Dep. Chem., Mich. State Univ., East Lansing, MI 48824, USA; Eng.) -W. Pewestorf 26-242